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## org.modeshape.sequencer.ddl
Class StandardDdlParser

    java.lang.Object
      org.modeshape.sequencer.ddl.StandardDdlParser

All Implemented Interfaces:
  DdlConstants, DdlConstants.StatementStartPhrases, DdlParser

Direct Known Subclasses:
  Db2DdlParser, DerbyDdlParser, MySqlDdlParser, OracleDdlParser, PostgresDdlParser, SqlServerDdlParser, SybaseDdlParser

    @NotThreadSafe
    public class StandardDdlParser

extends Object
implements DdlParser, DdlConstants, DdlConstants.StatementStartPhrases

Standard SQL 92 DDL file content parser.

Nested Class Summary

Nested classes/interfaces inherited from interface org.modeshape.sequencer.ddl.DdlConstants
`DdlConstants.AstNodeNames, DdlConstants.DataTypes, DdlConstants.DropBehavior, DdlConstants.MatchType, DdlConstants.Problems, DdlConstants.ReferencialAction, DdlConstants.StatementStartPhrases`

Field Summary

Fields inherited from interface org.modeshape.sequencer.ddl.DdlConstants
`ALTER, CHECK, COLUMN, COMMA, CONSTRAINT, CONSTRAINT_C, CONSTRAINT_FK, CONSTRAINT_PK, CONSTRAINT_UC, CREATE, DECLARE, DEFAULT_TERMINATOR, DELETE, DROP, FOREIGN, FOREIGN_KEY, GIGA, GRANT, INDEX, INSERT, KEY, KILO, L_PAREN, L_SQUOTE, MEGA, MISSING_TERMINATOR_NODE_LITERAL, OFF, ON, PERIOD, PRIMARY, PRIMARY_KEY, R_PAREN, REVOKE, SCHEMA, SELECT, SEMICOLON, SET, SPACE, SQL_92_RESERVED_WORDS, TABLE, UNIQUE, UPDATE, VIEW`

Fields inherited from interface org.modeshape.sequencer.ddl.DdlConstants.StatementStartPhrases
`SQL_92_ALL_PHRASES, STMT_ALTER_DOMAIN, STMT_ALTER_TABLE, STMT_CREATE_ASSERTION, STMT_CREATE_CHARACTER_SET, STMT_CREATE_COLLATION, STMT_CREATE_DOMAIN, STMT_CREATE_GLOBAL_TEMPORARY_TABLE, STMT_CREATE_LOCAL_TEMPORARY_TABLE, STMT_CREATE_OR_REPLACE_VIEW, STMT_CREATE_SCHEMA, STMT_CREATE_TABLE, STMT_CREATE_TRANSLATION, STMT_CREATE_VIEW, STMT_DROP_ASSERTION, STMT_DROP_CHARACTER_SET, STMT_DROP_COLLATION, STMT_DROP_DOMAIN, STMT_DROP_SCHEMA, STMT_DROP_TABLE, STMT_DROP_TRANSLATION, STMT_DROP_VIEW, STMT_GRANT, STMT_INSERT_INTO, STMT_REVOKE, STMT_SET_DEFINE, VALID_SCHEMA_CHILD_TYPES`

Constructor Summary
`StandardDdlParser()`

Method Summary
`void` | `addProblem(DdlParserProblem problem)`
`void` | `addProblem(DdlParserProblem problem, AstNode node)`
`protected boolean` | `areNextTokensCreateTableOptions(DdlTokenStream tokens)`
`void` | `attachNewProblem(DdlParserProblem problem, AstNode parentNode)`
`protected void` | `computeScore(DdlTokenStream tokens, DdlParserScorer scorer)`
`protected boolean` | `consumeComment(DdlTokenStream tokens)` Consumes an an end-of-line comment or in-line comment
`protected String` | `consumeIdentifier(DdlTokenStream tokens)` Consumes an token identifier which can be of the form of a simple string or a double-quoted string.
`protected String` | `consumeParenBoundedTokens(DdlTokenStream tokens, boolean includeParens)` Simple method which parses, consumes and returns a string representing text found between parenthesis (i.e. '()') If parents don't exist, method returns NULL;
`boolean` | `doUseTerminator()` Returns if parser is using statement terminator or not.
`boolean` | `equals(Object obj)`
`Position` | `getCurrentMarkedPosition()`
`protected List<String>` | `getCustomDataTypeStartWords()` Returns a list of custom data type start words which can be used to help identify a column definition sub-statement.
`DataTypeParser` | `getDatatypeParser()` Returns the data type parser instance.
`protected List<String>` | `getDataTypeStartWords()` Returns a list of data type start words which can be used to help identify a column definition sub-statement.
`String` | `getId()` Get the identifier for this parser.
`String[]` | `getIdentifyingKeywords()`
`List<DdlParserProblem>` | `getProblems()`
`AstNode` | `getRootNode()`
`String` | `getStatementTypeName(String[] stmtPhrase)`
`protected String` | `getTableElementsString(DdlTokenStream tokens, boolean useTerminator)` Method which extracts the table element string from a CREATE TABLE statement.
`protected String` | `getTerminator()` Returns current terminator
`protected Name[]` | `getValidSchemaChildTypes()`
`AstNode` | `handleUnknownToken(DdlTokenStream tokens, String tokenValue)` Utility method subclasses can override to check unknown tokens and perform additional node manipulation.
`int` | `hashCode()`
`protected void` | `initializeTokenStream(DdlTokenStream tokens)` Method called by `score(String, String, DdlParserScorer)` and `parse(String, AstNode, Object)` to initialize the `token stream`, giving subclasses a chance to `register key words` and `statement start phrases`.
`protected int` | `integer(String value)` Returns the integer value of the input string.
`protected boolean` | `isColumnDefinitionStart(DdlTokenStream tokens)` This utility method provides this parser the ability to distinguish between a CreateTable Constrain and a ColumnDefinition Definition which are the only two statement segment types allowed within the CREATE TABLE parenthesis ( xxxxxx );
`protected boolean` | `isComment(DdlTokenStream tokens)` Checks if next token is of type comment.
`boolean` | `isMissingTerminatorNode(AstNode node)`
`protected boolean` | `isTableConstraint(DdlTokenStream tokens)` This utility method provides this parser the ability to distinguish between a CreateTable Constraint and a ColumnDefinition Definition which are the only two statement segment types allowed within the CREATE TABLE parenthesis ( xxxxxx );
`protected boolean` | `isTerminator(DdlTokenStream tokens)` Utility method to determine if next token is a terminator.
`boolean` | `isTestMode()`
`boolean` | `isValidSchemaChild(AstNode node)`
`void` | `markEndOfStatement(DdlTokenStream tokens, AstNode statementNode)` Marks the end of a statement by consuming the terminator (if exists).
`void` | `markStartOfStatement(DdlTokenStream tokens)` Marks the token stream with the current position to help track statement scope within the original input string.
`void` | `mergeNodes(DdlTokenStream tokens, AstNode firstNode, AstNode secondNode)` Merges second node into first node by re-setting expression source and length.
`AstNode` | `missingTerminatorNode(AstNode parentNode)` Constructs a terminator AstNode as child of root node
`AstNodeFactory` | `nodeFactory()` Method to access the node utility class.
`void` | `parse(String ddl, AstNode rootNode, Object scoreReturnObject)` Parses a DDL string, adding child `AstNode`s and properties to the supplied root.
`protected AstNode` | `parseAlterStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL ALTER statement based on SQL 92 specifications.
`protected AstNode` | `parseAlterTableStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL ALTER TABLE `AstNode` based on SQL 92 specifications.
`protected boolean` | `parseCollateClause(DdlTokenStream tokens, AstNode columnNode)` Parses the default clause for a column and sets appropriate properties on the column node.
`protected boolean` | `parseColumnConstraint(DdlTokenStream tokens, AstNode columnNode, boolean isAlterTable)` Parses an in-line column constraint including NULLABLE value, UNIQUE, PRIMARY KEY and REFERENCES to a Foreign Key.
`protected void` | `parseColumnDefinition(DdlTokenStream tokens, AstNode tableNode, boolean isAlterTable)` Utility method to parse the actual column definition.
`protected List<String>` | `parseColumnNameList(DdlTokenStream tokens)` Parses a comma separated list of column names.
`protected boolean` | `parseColumnNameList(DdlTokenStream tokens, AstNode parentNode, Name referenceType)` Adds column reference nodes to a parent node.
`protected void` | `parseColumnsAndConstraints(DdlTokenStream tokens, AstNode tableNode)` Utility method to parse columns and table constraints within either a CREATE TABLE statement.
`protected void` | `parseConstraintAttributes(DdlTokenStream tokens, AstNode constraintNode)` Parses the attributes associated with any in-line column constraint definition or a table constrain definition.
`protected AstNode` | `parseCreateAssertionStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL CREATE ASSERTION `AstNode` based on SQL 92 specifications.
`protected AstNode` | `parseCreateCharacterSetStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL CREATE CHARACTER SET `AstNode` based on SQL 92 specifications.
`protected AstNode` | `parseCreateCollationStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL CREATE COLLATION `AstNode` based on SQL 92 specifications.
`protected AstNode` | `parseCreateDomainStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL CREATE DOMAIN `AstNode` based on SQL 92 specifications.
`protected AstNode` | `parseCreateSchemaStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL CREATE SCHEMA `AstNode` based on SQL 92 specifications.
`protected AstNode` | `parseCreateStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL CREATE statement based on SQL 92 specifications.
`protected void` | `parseCreateTableOptions(DdlTokenStream tokens, AstNode tableNode)`
`protected AstNode` | `parseCreateTableStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL CREATE TABLE `AstNode` based on SQL 92 specifications.
`protected AstNode` | `parseCreateTranslationStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL CREATE TRANSLATION `AstNode` based on SQL 92 specifications.
`protected AstNode` | `parseCreateViewStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL CREATE VIEW `AstNode` basedregisterStatementStartPhrase on SQL 92 specifications.
`protected AstNode` | `parseCustomStatement(DdlTokenStream tokens, AstNode parentNode)` Catch-all method to parse unknown (not registered or handled by sub-classes) statements.
`protected boolean` | `parseDefaultClause(DdlTokenStream tokens, AstNode columnNode)` Parses the default clause for a column and sets appropriate properties on the column node.
`protected AstNode` | `parseDropStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL DROP `AstNode` based on SQL 92 specifications.
`protected void` | `parseGrantPrivileges(DdlTokenStream tokens, List<AstNode> privileges)`
`protected AstNode` | `parseGrantStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL GRANT statement `AstNode` based on SQL 92 specifications.
`protected AstNode` | `parseIgnorableStatement(DdlTokenStream tokens, String name, AstNode parentNode)` Utility method to parse a statement that can be ignored.
`protected AstNode` | `parseIgnorableStatement(DdlTokenStream tokens, String name, AstNode parentNode, Name mixinType)` Utility method to parse a statement that can be ignored.
`protected AstNode` | `parseInsertStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL INSERT `AstNode` based on SQL 92 specifications.
`protected String` | `parseName(DdlTokenStream tokens)` Method to parse fully qualified schema, table and column names that are defined with '.' separator and optionally bracketed with square brackets Example: partsSchema.supplier Example: [partsSchema].
`protected void` | `parseNextCreateTableOption(DdlTokenStream tokens, AstNode tableNode)`
`protected AstNode` | `parseNextStatement(DdlTokenStream tokens, AstNode node)` Performs token match checks for initial statement type and delegates to specific parser methods.
`protected void` | `parseReferences(DdlTokenStream tokens, AstNode constraintNode)`
`protected AstNode` | `parseRevokeStatement(DdlTokenStream tokens, AstNode parentNode)`
`protected AstNode` | `parseSetStatement(DdlTokenStream tokens, AstNode parentNode)` Parses DDL SET `AstNode` based on SQL 92 specifications.
`protected void` | `parseSingleTerminatedColumnDefinition(DdlTokenStream tokens, AstNode tableNode, boolean isAlterTable)` Utility method to parse the actual column definition.
`protected AstNode` | `parseStatement(DdlTokenStream tokens, String[] stmt_start_phrase, AstNode parentNode, Name mixinType)` Utility method to parse a generic statement given a start phrase and statement mixin type.
`protected void` | `parseTableConstraint(DdlTokenStream tokens, AstNode tableNode, boolean isAlterTable)` Parses full table constraint definition including the "CONSTRAINT" token Examples: CONSTRAINT P_KEY_2a UNIQUE (PERMISSIONUID)
`protected String` | `parseUntilCommaOrTerminator(DdlTokenStream tokens)`
`protected String` | `parseUntilSemiColon(DdlTokenStream tokens)` Utility method which parses tokens until a semicolon is found or there are no more tokens.
`protected String` | `parseUntilTerminator(DdlTokenStream tokens)` Utility method which parses tokens until a terminator is found, another statement is identified or there are no more tokens.
`protected String` | `parseUntilTerminatorIgnoreEmbeddedStatements(DdlTokenStream tokens)` Utility method which parses tokens until a terminator is found or there are no more tokens.
`protected void` | `removeMissingTerminatorNodes(AstNode parentNode)`
`protected void` | `rewrite(DdlTokenStream tokens, AstNode rootNode)`
`Object` | `score(String ddl, String fileName, DdlParserScorer scorer)` Determine this parser's score for the given DDL string.
`boolean` | `setAsSchemaChildNode(AstNode statementNode, boolean stmtIsMissingTerminator)`
`void` | `setDatatypeParser(DataTypeParser datatypeParser)`
`void` | `setDoUseTerminator(boolean useTerminator)` Sets the value of the use terminator flag for the parser.
`void` | `setRootNode(AstNode rootNode)`
`protected boolean` | `setTerminator(String terminator)`
`void` | `setTestMode(boolean testMode)`
`protected void` | `testPrint(String str)`
`AstNode` | `unknownTerminatedNode(AstNode parentNode)` Constructs a terminator AstNode as child of root node

Methods inherited from class java.lang.Object
`clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### StandardDdlParser

    public StandardDdlParser()

Method Detail

### getDatatypeParser

    public DataTypeParser getDatatypeParser()

  Returns the data type parser instance.

  Returns:
    the `DataTypeParser`

### setDatatypeParser

    public void setDatatypeParser(DataTypeParser datatypeParser)

  Parameters:
    `datatypeParser` -

### nodeFactory

    public AstNodeFactory nodeFactory()

  Method to access the node utility class.

  Returns:
    the instance of the `AstNodeFactory` node utility class

### getRootNode

    public AstNode getRootNode()

  Returns:
    rootNode

### setRootNode

    public void setRootNode(AstNode rootNode)

  Parameters:
    `rootNode` - Sets rootNode to the specified value.

### score

    public Object score(String ddl,
                        String fileName,
                        DdlParserScorer scorer)
                 throws ParsingException

  Determine this parser's score for the given DDL string. This method is called to determine how well this parser handles the supplied DDL, and is often called before the `DdlParser.parse(String, AstNode, Object)` method.

  Specified by:
    `score` in interface `DdlParser`
  Parameters:
    `ddl` - the input string to parse; may not be null
    `fileName` - the name of the DDL content, which may be used to improve the score; may be null if not known
    `scorer` - the scorer that should be used to record the score; may not be null
  Returns:
    an object that will be passed to the `DdlParser.parse(String, AstNode,Object)` method
  Throws:
    `ParsingException` - if there is an error parsing the supplied DDL content
  See Also:
    `DdlParser.score(java.lang.String, java.lang.String, org.modeshape.sequencer.ddl.DdlParserScorer)`

### computeScore

    protected void computeScore(DdlTokenStream tokens,
                                DdlParserScorer scorer)

### getIdentifyingKeywords

    public String[] getIdentifyingKeywords()

### parse

    public void parse(String ddl,
                      AstNode rootNode,
                      Object scoreReturnObject)
               throws ParsingException

  Parses a DDL string, adding child `AstNode`s and properties to the supplied root. This method instantiates the tokenizer, calls a method to allow subclasses to register keywords and statement start phrases with the tokenizer and finally performs the tokenizing (i.e. tokens.start()) before calling the actual parse method.

  Specified by:
    `parse` in interface `DdlParser`
  Parameters:
    `ddl` - the input string to parse; may not be null
    `rootNode` - the top level `AstNode`; may not be null
    `scoreReturnObject` - the object returned from `DdlParser.score(String, String, DdlParserScorer)` for the same DDL content; may be null if the `DdlParser.score(String, String, DdlParserScorer)` method was not called
  Throws:
    `ParsingException` - if there is an error parsing the supplied DDL content
  See Also:
    `DdlParser.parse(java.lang.String, org.modeshape.sequencer.ddl.node.AstNode, java.lang.Object)`

### initializeTokenStream

    protected void initializeTokenStream(DdlTokenStream tokens)

  Method called by `score(String, String, DdlParserScorer)` and `parse(String, AstNode, Object)` to initialize the `token stream`, giving subclasses a chance to `register key words` and `statement start phrases`.

  Parameters:
    `tokens` - the stream of tokens

### parseNextStatement

    protected AstNode parseNextStatement(DdlTokenStream tokens,
                                         AstNode node)

  Performs token match checks for initial statement type and delegates to specific parser methods. If no specific statement is found, then a call is made to parse a custom statement type. Subclasses may override this method, but the `StandardDdlParser`.parseCustomStatement() method is designed to allow for parsing db-specific statement types.

  Parameters:
    `tokens` - the tokenized `DdlTokenStream` of the DDL input content; may not be null
    `node` - the top level `AstNode`; may not be null
  Returns:
    node the new statement node

### addProblem

    public final void addProblem(DdlParserProblem problem,
                                 AstNode node)

### addProblem

    public final void addProblem(DdlParserProblem problem)

### getProblems

    public final List<DdlParserProblem> getProblems()

### attachNewProblem

    public final void attachNewProblem(DdlParserProblem problem,
                                       AstNode parentNode)

### rewrite

    protected void rewrite(DdlTokenStream tokens,
                           AstNode rootNode)

### removeMissingTerminatorNodes

    protected void removeMissingTerminatorNodes(AstNode parentNode)

### mergeNodes

    public void mergeNodes(DdlTokenStream tokens,
                           AstNode firstNode,
                           AstNode secondNode)

  Merges second node into first node by re-setting expression source and length.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `firstNode` - the node to merge into; may not be null
    `secondNode` - the node to merge into first node; may not be null

### handleUnknownToken

    public AstNode handleUnknownToken(DdlTokenStream tokens,
                                      String tokenValue)
                               throws ParsingException

  Utility method subclasses can override to check unknown tokens and perform additional node manipulation. Example would be in Oracle dialect for CREATE FUNCTION statements that can end with an '/' character because statement can contain multiple statements.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `tokenValue` - the string value of the unknown token; never null
  Returns:
    the new node
  Throws:
    `ParsingException`

### parseCreateStatement

    protected AstNode parseCreateStatement(DdlTokenStream tokens,
                                           AstNode parentNode)
                                    throws ParsingException

  Parses DDL CREATE statement based on SQL 92 specifications.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the parsed CREATE `AstNode`
  Throws:
    `ParsingException`

### parseAlterStatement

    protected AstNode parseAlterStatement(DdlTokenStream tokens,
                                          AstNode parentNode)
                                   throws ParsingException

  Parses DDL ALTER statement based on SQL 92 specifications.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the parsed ALTER `AstNode`
  Throws:
    `ParsingException`

### parseAlterTableStatement

    protected AstNode parseAlterTableStatement(DdlTokenStream tokens,
                                               AstNode parentNode)
                                        throws ParsingException

  Parses DDL ALTER TABLE `AstNode` based on SQL 92 specifications.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the parsed ALTER TABLE `AstNode`
  Throws:
    `ParsingException`

### parseDropStatement

    protected AstNode parseDropStatement(DdlTokenStream tokens,
                                         AstNode parentNode)
                                  throws ParsingException

  Parses DDL DROP `AstNode` based on SQL 92 specifications.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the parsed DROP `AstNode`
  Throws:
    `ParsingException`

### parseInsertStatement

    protected AstNode parseInsertStatement(DdlTokenStream tokens,
                                           AstNode parentNode)
                                    throws ParsingException

  Parses DDL INSERT `AstNode` based on SQL 92 specifications.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the `AstNode`
  Throws:
    `ParsingException`

### parseSetStatement

    protected AstNode parseSetStatement(DdlTokenStream tokens,
                                        AstNode parentNode)
                                 throws ParsingException

  Parses DDL SET `AstNode` based on SQL 92 specifications.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the `AstNode`
  Throws:
    `ParsingException`

### parseGrantStatement

    protected AstNode parseGrantStatement(DdlTokenStream tokens,
                                          AstNode parentNode)
                                   throws ParsingException

  Parses DDL GRANT statement `AstNode` based on SQL 92 specifications.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the `AstNode`
  Throws:
    `ParsingException`

### parseGrantPrivileges

    protected void parseGrantPrivileges(DdlTokenStream tokens,
                                        List<AstNode> privileges)
                                 throws ParsingException

  Throws:
    `ParsingException`

### parseRevokeStatement

    protected AstNode parseRevokeStatement(DdlTokenStream tokens,
                                           AstNode parentNode)
                                    throws ParsingException

  Throws:
    `ParsingException`

### parseCreateDomainStatement

    protected AstNode parseCreateDomainStatement(DdlTokenStream tokens,
                                                 AstNode parentNode)
                                          throws ParsingException

  Parses DDL CREATE DOMAIN `AstNode` based on SQL 92 specifications.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the parsed statement node `AstNode`
  Throws:
    `ParsingException`

### parseCreateCollationStatement

    protected AstNode parseCreateCollationStatement(DdlTokenStream tokens,
                                                    AstNode parentNode)
                                             throws ParsingException

  Parses DDL CREATE COLLATION `AstNode` based on SQL 92 specifications.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the parsed statement node `AstNode`
  Throws:
    `ParsingException`

### parseCreateTranslationStatement

    protected AstNode parseCreateTranslationStatement(DdlTokenStream tokens,
                                                      AstNode parentNode)
                                               throws ParsingException

  Parses DDL CREATE TRANSLATION `AstNode` based on SQL 92 specifications.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the parsed statement node `AstNode`
  Throws:
    `ParsingException`

### parseCreateCharacterSetStatement

    protected AstNode parseCreateCharacterSetStatement(DdlTokenStream tokens,
                                                       AstNode parentNode)
                                                throws ParsingException

  Parses DDL CREATE CHARACTER SET `AstNode` based on SQL 92 specifications.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the parsed statement node `AstNode`
  Throws:
    `ParsingException`

### parseCustomStatement

    protected AstNode parseCustomStatement(DdlTokenStream tokens,
                                           AstNode parentNode)
                                    throws ParsingException

  Catch-all method to parse unknown (not registered or handled by sub-classes) statements.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the `AstNode`
  Throws:
    `ParsingException`

### parseCreateTableStatement

    protected AstNode parseCreateTableStatement(DdlTokenStream tokens,
                                                AstNode parentNode)
                                         throws ParsingException

  Parses DDL CREATE TABLE `AstNode` based on SQL 92 specifications.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the parsed CREATE TABLE `AstNode`
  Throws:
    `ParsingException`

### parseCreateTableOptions

    protected void parseCreateTableOptions(DdlTokenStream tokens,
                                           AstNode tableNode)
                                    throws ParsingException

  Throws:
    `ParsingException`

### parseNextCreateTableOption

    protected void parseNextCreateTableOption(DdlTokenStream tokens,
                                              AstNode tableNode)
                                       throws ParsingException

  Throws:
    `ParsingException`

### areNextTokensCreateTableOptions

    protected boolean areNextTokensCreateTableOptions(DdlTokenStream tokens)
                                               throws ParsingException

  Throws:
    `ParsingException`

### parseColumnsAndConstraints

    protected void parseColumnsAndConstraints(DdlTokenStream tokens,
                                              AstNode tableNode)
                                       throws ParsingException

  Utility method to parse columns and table constraints within either a CREATE TABLE statement. Method first parses and copies the text enclosed within the bracketed "( xxxx )" statement. Then the individual column definition or table constraint definition sub-statements are parsed assuming they are comma delimited.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `tableNode` -
  Throws:
    `ParsingException`

### parseColumnDefinition

    protected void parseColumnDefinition(DdlTokenStream tokens,
                                         AstNode tableNode,
                                         boolean isAlterTable)
                                  throws ParsingException

  Utility method to parse the actual column definition. SQL-92 Structural Specification ::= { | } [ ] [ ... ] [ ]

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `tableNode` -
    `isAlterTable` - true if in-line constraint is part of add column in alter table statement
  Throws:
    `ParsingException`

### parseSingleTerminatedColumnDefinition

    protected void parseSingleTerminatedColumnDefinition(DdlTokenStream tokens,
                                                         AstNode tableNode,
                                                         boolean isAlterTable)
                                                  throws ParsingException

  Utility method to parse the actual column definition. SQL-92 Structural Specification ::= { | } [ ] [ ... ] [ ]

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `tableNode` - the alter or create table statement node; may not be null
    `isAlterTable` - true if in-line constraint is part of add column in alter table statement
  Throws:
    `ParsingException`

### getTableElementsString

    protected String getTableElementsString(DdlTokenStream tokens,
                                            boolean useTerminator)
                                     throws ParsingException

  Method which extracts the table element string from a CREATE TABLE statement.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `useTerminator` -
  Returns:
    the parsed table elements String.
  Throws:
    `ParsingException`

### consumeParenBoundedTokens

    protected String consumeParenBoundedTokens(DdlTokenStream tokens,
                                               boolean includeParens)
                                        throws ParsingException

  Simple method which parses, consumes and returns a string representing text found between parenthesis (i.e. '()') If parents don't exist, method returns NULL;

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `includeParens` -
  Returns:
    the parenthesis bounded text or null if no parens.
  Throws:
    `ParsingException`

### parseColumnConstraint

    protected boolean parseColumnConstraint(DdlTokenStream tokens,
                                            AstNode columnNode,
                                            boolean isAlterTable)
                                     throws ParsingException

  Parses an in-line column constraint including NULLABLE value, UNIQUE, PRIMARY KEY and REFERENCES to a Foreign Key. The values for the constraint are set as properties on the input columnNode.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `columnNode` - the column definition being created; may not be null
    `isAlterTable` - true if in-line constraint is part of add column in alter table statement
  Returns:
    true if parsed a constraint, else false.
  Throws:
    `ParsingException`

### parseTableConstraint

    protected void parseTableConstraint(DdlTokenStream tokens,
                                        AstNode tableNode,
                                        boolean isAlterTable)
                                 throws ParsingException

  Parses full table constraint definition including the "CONSTRAINT" token Examples: CONSTRAINT P_KEY_2a UNIQUE (PERMISSIONUID)

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `tableNode` -
    `isAlterTable` - true if in-line constraint is part of add column in alter table statement
  Throws:
    `ParsingException`

### parseConstraintAttributes

    protected void parseConstraintAttributes(DdlTokenStream tokens,
                                             AstNode constraintNode)
                                      throws ParsingException

  Parses the attributes associated with any in-line column constraint definition or a table constrain definition.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `constraintNode` -
  Throws:
    `ParsingException`

### parseReferences

    protected void parseReferences(DdlTokenStream tokens,
                                   AstNode constraintNode)
                            throws ParsingException

  Throws:
    `ParsingException`

### parseCreateViewStatement

    protected AstNode parseCreateViewStatement(DdlTokenStream tokens,
                                               AstNode parentNode)
                                        throws ParsingException

  Parses DDL CREATE VIEW `AstNode` basedregisterStatementStartPhrase on SQL 92 specifications. Initial implementation here does not parse the statement in detail.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the Create View node
  Throws:
    `ParsingException`

### parseCreateSchemaStatement

    protected AstNode parseCreateSchemaStatement(DdlTokenStream tokens,
                                                 AstNode parentNode)
                                          throws ParsingException

  Parses DDL CREATE SCHEMA `AstNode` based on SQL 92 specifications. Initial implementation here does not parse the statement in detail.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the parsed schema node
  Throws:
    `ParsingException`

### parseCreateAssertionStatement

    protected AstNode parseCreateAssertionStatement(DdlTokenStream tokens,
                                                    AstNode parentNode)
                                             throws ParsingException

  Parses DDL CREATE ASSERTION `AstNode` based on SQL 92 specifications. Initial implementation here does not parse the statement's search condition in detail.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the parsed schema node
  Throws:
    `ParsingException`

### parseIgnorableStatement

    protected AstNode parseIgnorableStatement(DdlTokenStream tokens,
                                              String name,
                                              AstNode parentNode)

  Utility method to parse a statement that can be ignored. The value returned in the generic `AstNode` will contain all text between starting token and either the terminator (if defined) or the next statement start token. NOTE: This method does NOT mark and add consumed fragment to parent node.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `name` -
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    the parsed generic `AstNode`
  Throws:
    `ParsingException`

### parseIgnorableStatement

    protected AstNode parseIgnorableStatement(DdlTokenStream tokens,
                                              String name,
                                              AstNode parentNode,
                                              Name mixinType)

  Utility method to parse a statement that can be ignored. The value returned in the generic `AstNode` will contain all text between starting token and either the terminator (if defined) or the next statement start token. NOTE: This method does NOT mark and add consumed fragment to parent node.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `name` -
    `parentNode` - the parent `AstNode` node; may not be null
    `mixinType` -
  Returns:
    the parsed generic `AstNode`
  Throws:
    `ParsingException`

### parseStatement

    protected AstNode parseStatement(DdlTokenStream tokens,
                                     String[] stmt_start_phrase,
                                     AstNode parentNode,
                                     Name mixinType)

  Utility method to parse a generic statement given a start phrase and statement mixin type.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `stmt_start_phrase` - the string array statement start phrase
    `parentNode` - the parent of the newly created node.
    `mixinType` - the mixin type of the newly created statement node
  Returns:
    the new node

### unknownTerminatedNode

    public final AstNode unknownTerminatedNode(AstNode parentNode)

  Constructs a terminator AstNode as child of root node

  Parameters:
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    terminator node

### missingTerminatorNode

    public final AstNode missingTerminatorNode(AstNode parentNode)

  Constructs a terminator AstNode as child of root node

  Parameters:
    `parentNode` - the parent `AstNode` node; may not be null
  Returns:
    terminator node

### isMissingTerminatorNode

    public final boolean isMissingTerminatorNode(AstNode node)

### isValidSchemaChild

    public final boolean isValidSchemaChild(AstNode node)

### setAsSchemaChildNode

    public final boolean setAsSchemaChildNode(AstNode statementNode,
                                              boolean stmtIsMissingTerminator)

### getTerminator

    protected String getTerminator()

  Returns current terminator

  Returns:
    terminator string value

### setTerminator

    protected boolean setTerminator(String terminator)

  Parameters:
    `terminator` - the string value used as the statement terminator for the ddl dialect
  Returns:
    if terminator was changed or not

### getValidSchemaChildTypes

    protected Name[] getValidSchemaChildTypes()

### isComment

    protected boolean isComment(DdlTokenStream tokens)
                         throws ParsingException

  Checks if next token is of type comment.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
  Returns:
    true if next token is a comment.
  Throws:
    `ParsingException`

### consumeComment

    protected boolean consumeComment(DdlTokenStream tokens)
                              throws ParsingException

  Consumes an an end-of-line comment or in-line comment

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
  Returns:
    true if a comment was found and consumed
  Throws:
    `ParsingException`

### isTableConstraint

    protected boolean isTableConstraint(DdlTokenStream tokens)
                                 throws ParsingException

  This utility method provides this parser the ability to distinguish between a CreateTable Constraint and a ColumnDefinition Definition which are the only two statement segment types allowed within the CREATE TABLE parenthesis ( xxxxxx );

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
  Returns:
    is table constraint
  Throws:
    `ParsingException`

### isColumnDefinitionStart

    protected boolean isColumnDefinitionStart(DdlTokenStream tokens)
                                       throws ParsingException

  This utility method provides this parser the ability to distinguish between a CreateTable Constrain and a ColumnDefinition Definition which are the only two statement segment types allowed within the CREATE TABLE parenthesis ( xxxxxx );

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
  Returns:
    is column definition start phrase
  Throws:
    `ParsingException`

### getDataTypeStartWords

    protected List<String> getDataTypeStartWords()

  Returns a list of data type start words which can be used to help identify a column definition sub-statement.

  Returns:
    list of data type start words

### getCustomDataTypeStartWords

    protected List<String> getCustomDataTypeStartWords()

  Returns a list of custom data type start words which can be used to help identify a column definition sub-statement. Sub-classes should override this method to contribute DB-specific data types.

  Returns:
    list of data type start words

### parseName

    protected String parseName(DdlTokenStream tokens)

  Method to parse fully qualified schema, table and column names that are defined with '.' separator and optionally bracketed with square brackets Example: partsSchema.supplier Example: [partsSchema].[supplier]

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
  Returns:
    the parsed name

### consumeIdentifier

    protected String consumeIdentifier(DdlTokenStream tokens)
                                throws ParsingException

  Consumes an token identifier which can be of the form of a simple string or a double-quoted string.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
  Returns:
    the identifier
  Throws:
    `ParsingException`

### isTerminator

    protected boolean isTerminator(DdlTokenStream tokens)
                            throws ParsingException

  Utility method to determine if next token is a terminator.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
  Returns:
    is terminator token
  Throws:
    `ParsingException`

### parseColumnNameList

    protected boolean parseColumnNameList(DdlTokenStream tokens,
                                          AstNode parentNode,
                                          Name referenceType)

  Adds column reference nodes to a parent node. Returns true if column references added, false if not.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `parentNode` - the parent node
    `referenceType` - the type of the reference node to create
  Returns:
    true if the column references were found and added to the node, or false if there were no column references found in the stream

### parseColumnNameList

    protected List<String> parseColumnNameList(DdlTokenStream tokens)
                                        throws ParsingException

  Parses a comma separated list of column names.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
  Returns:
    list of column names.
  Throws:
    `ParsingException`

### parseUntilTerminator

    protected String parseUntilTerminator(DdlTokenStream tokens)
                                   throws ParsingException

  Utility method which parses tokens until a terminator is found, another statement is identified or there are no more tokens.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
  Returns:
    the parsed string
  Throws:
    `ParsingException`

### parseUntilTerminatorIgnoreEmbeddedStatements

    protected String parseUntilTerminatorIgnoreEmbeddedStatements(DdlTokenStream tokens)
                                                           throws ParsingException

  Utility method which parses tokens until a terminator is found or there are no more tokens. This method differs from parseUntilTermintor() in that it ignores embedded statements. This method can be used for parsers that have statements which can embed statements that should not be parsed.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
  Returns:
    the parsed string
  Throws:
    `ParsingException`

### parseUntilSemiColon

    protected String parseUntilSemiColon(DdlTokenStream tokens)
                                  throws ParsingException

  Utility method which parses tokens until a semicolon is found or there are no more tokens.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
  Returns:
    the parsed string
  Throws:
    `ParsingException`

### parseUntilCommaOrTerminator

    protected String parseUntilCommaOrTerminator(DdlTokenStream tokens)
                                          throws ParsingException

  Throws:
    `ParsingException`

### doUseTerminator

    public boolean doUseTerminator()

  Returns if parser is using statement terminator or not.

  Returns:
    value of useTerminator flag.

### setDoUseTerminator

    public void setDoUseTerminator(boolean useTerminator)

  Sets the value of the use terminator flag for the parser. If TRUE, then all statements are expected to be terminated by a terminator. The default terminator ";" can be overridden by setting the value using setTerminator() method.

  Parameters:
    `useTerminator` -

### getStatementTypeName

    public String getStatementTypeName(String[] stmtPhrase)

### parseDefaultClause

    protected boolean parseDefaultClause(DdlTokenStream tokens,
                                         AstNode columnNode)
                                  throws ParsingException

  Parses the default clause for a column and sets appropriate properties on the column node.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `columnNode` - the column node which may contain a default clause; may not be null
  Returns:
    true if default clause was found and parsed, otherwise false
  Throws:
    `ParsingException`

### parseCollateClause

    protected boolean parseCollateClause(DdlTokenStream tokens,
                                         AstNode columnNode)
                                  throws ParsingException

  Parses the default clause for a column and sets appropriate properties on the column node.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `columnNode` - the column node which may contain a collate clause; may not be null
  Returns:
    true if collate clause was found and parsed else return false.
  Throws:
    `ParsingException`

### integer

    protected int integer(String value)

  Returns the integer value of the input string. Handles both straight integer string or complex KMG (CLOB or BLOB) value. Throws `NumberFormatException` if a valid integer is not found.

  Parameters:
    `value` - the string to be parsed; may not be null and length must be > 0;
  Returns:
    integer value

### getCurrentMarkedPosition

    public final Position getCurrentMarkedPosition()

### markStartOfStatement

    public final void markStartOfStatement(DdlTokenStream tokens)

  Marks the token stream with the current position to help track statement scope within the original input string.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null

### markEndOfStatement

    public final void markEndOfStatement(DdlTokenStream tokens,
                                         AstNode statementNode)

  Marks the end of a statement by consuming the terminator (if exists). If it does not exist, a missing terminator node may be added. If the resulting statement node is a valid child node type for a schema, the child node may be re-parented to the schema if the schema is still parentable. Each resulting statement node is tagged with the enclosing source expression, starting line number and column number from the file content as well as a starting character index from that same content.

  Parameters:
    `tokens` - the `DdlTokenStream` representing the tokenized DDL content; may not be null
    `statementNode` -

### testPrint

    protected void testPrint(String str)

### isTestMode

    public boolean isTestMode()

  Returns:
    testMode

### setTestMode

    public void setTestMode(boolean testMode)

  Parameters:
    `testMode` - Sets testMode to the specified value.

### getId

    public String getId()

  Get the identifier for this parser.

  Specified by:
    `getId` in interface `DdlParser`
  Returns:
    the parser's identifier; never null
  See Also:
    `DdlParser.getId()`

### hashCode

    public int hashCode()

  Overrides:
    `hashCode` in class `Object`
  See Also:
    `Object.hashCode()`

### equals

    public boolean equals(Object obj)

  Overrides:
    `equals` in class `Object`
  See Also:
    `Object.equals(java.lang.Object)`

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