org.modeshape.sequencer.ddl.datatype
Class DataTypeParser

java.lang.Object
  org.modeshape.sequencer.ddl.datatype.DataTypeParser

All Implemented Interfaces:

DdlConstants

public class DataTypeParser
extends Object
implements DdlConstants

A parser for SQL data types.

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

Constructor Summary

DataTypeParser()

Method Summary

protected boolean	canConsume(DdlTokenStream tokens, DataType dataType, boolean addSpacePrefix, int type)
protected boolean	canConsume(DdlTokenStream tokens, DataType dataType, boolean addSpacePrefix, String[] additionalStrs)
protected boolean	canConsume(DdlTokenStream tokens, DataType dataType, boolean addSpacePrefix, String initialStr, String... additionalStrs)
protected boolean	canConsumeAnyOf(DdlTokenStream tokens, DataType dataType, boolean addSpacePrefix, String initialStr, String... additionalStrs)
protected String	consume(DdlTokenStream tokens, DataType dataType, boolean addSpacePrefix)
protected String	consume(DdlTokenStream tokens, DataType dataType, boolean addSpacePrefix, String str)
protected String	consume(DdlTokenStream tokens, DataType dataType, boolean addSpacePrefix, String[] additionalStrs)
protected String	consume(DdlTokenStream tokens, DataType dataType, boolean addSpacePrefix, String initialStr, String... additionalStrs)
int	getDefaultLength()
int	getDefaultPrecision()
int	getDefaultScale()
String	getStatementTypeName(String[] stmtPhrase)
protected boolean	isCustomDataType(DdlTokenStream tokens) Method to determine of next tokens represent a custom data type.
boolean	isDatatype(DdlTokenStream tokens) Method determines if the next set of tokens matches one of the registered data type token sets.
DataType	parse(DdlTokenStream tokens) Method which performs the actual parsing of the data type name and applicable values (i.e.
protected DataType	parseApproxNumericType(DdlTokenStream tokens) Parses SQL-92 Approximate numeric data types.
protected DataType	parseBitStringType(DdlTokenStream tokens) Parses SQL-92 Bit string data types.
protected long	parseBracketedLong(DdlTokenStream tokens, DataType dataType) Returns a long value from the input token stream assuming the long is bracketed with parenthesis.
protected DataType	parseCharStringType(DdlTokenStream tokens) Parses SQL-92 Character string data types.
protected DataType	parseCustomType(DdlTokenStream tokens) General catch-all data type parsing method that sub-classes can override to parse database-specific data types.
protected DataType	parseDateTimeType(DdlTokenStream tokens) Parses SQL-92 Date and Time data types.
protected DataType	parseExactNumericType(DdlTokenStream tokens) Parses SQL-92 Exact numeric data types.
protected long	parseLong(DdlTokenStream tokens, DataType dataType) Returns a long value from the input token stream assuming the long is not bracketed with parenthesis.
protected long	parseLong(String value) Returns the integer value of the input string.
protected DataType	parseMiscellaneousType(DdlTokenStream tokens) Parses SQL-92 Misc data types.
protected DataType	parseNationalCharStringType(DdlTokenStream tokens) Parses SQL-92 National Character string data types.
void	setDefaultLength(int defaultLength)
void	setDefaultPrecision(int defaultPrecision)
void	setDefaultScale(int defaultScale)
void	setPropertiesOnNode(AstNode columnNode, DataType datatype)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DataTypeParser

public DataTypeParser()

Method Detail

isDatatype

public final boolean isDatatype(DdlTokenStream tokens)
                         throws ParsingException

Method determines if the next set of tokens matches one of the registered data type token sets.

Parameters:

tokens -

Returns:

is registered data type

Throws:

ParsingException

isCustomDataType

protected boolean isCustomDataType(DdlTokenStream tokens)
                            throws ParsingException

Method to determine of next tokens represent a custom data type. Subclasses should override this method and perform token checks for any non-SQL92 spec'd data types.

Parameters:

tokens -

Returns:

is custom data type

Throws:

ParsingException

parse

public DataType parse(DdlTokenStream tokens)
               throws ParsingException

Method which performs the actual parsing of the data type name and applicable values (i.e. VARCHAR(20)) if data type is found.

Parameters:

tokens -

Returns:

the DataType

Throws:

ParsingException

parseCharStringType

protected DataType parseCharStringType(DdlTokenStream tokens)
                                throws ParsingException

Parses SQL-92 Character string data types. ::= CHARACTER [ ] | CHAR [ ] | CHARACTER VARYING | CHAR VARYING | VARCHAR

Parameters:

tokens -

Returns:

the DataType

Throws:

ParsingException

parseNationalCharStringType

protected DataType parseNationalCharStringType(DdlTokenStream tokens)
                                        throws ParsingException

Parses SQL-92 National Character string data types. ::= NATIONAL CHARACTER [ ] | NATIONAL CHAR [ ] | NCHAR [ ] | NATIONAL CHARACTER VARYING | NATIONAL CHAR VARYING | NCHAR VARYING

Parameters:

tokens -

Returns:

the DataType

Throws:

ParsingException

parseBitStringType

protected DataType parseBitStringType(DdlTokenStream tokens)
                               throws ParsingException

Parses SQL-92 Bit string data types. ::= BIT [ ] | BIT VARYING

Parameters:

tokens -

Returns:

the DataType

Throws:

ParsingException

parseExactNumericType

protected DataType parseExactNumericType(DdlTokenStream tokens)
                                  throws ParsingException

Parses SQL-92 Exact numeric data types. ::= NUMERIC [ [ ] ] | DECIMAL [ [ ] ] | DEC [ [ ] ] | INTEGER | INT | SMALLINT

Parameters:

tokens -

Returns:

the DataType

Throws:

ParsingException

parseApproxNumericType

protected DataType parseApproxNumericType(DdlTokenStream tokens)
                                   throws ParsingException

Parses SQL-92 Approximate numeric data types. ::= FLOAT [ ] | REAL | DOUBLE PRECISION

Parameters:

tokens -

Returns:

the DataType

Throws:

ParsingException

parseDateTimeType

protected DataType parseDateTimeType(DdlTokenStream tokens)
                              throws ParsingException

Parses SQL-92 Date and Time data types. ::= DATE | TIME [ ] [ WITH TIME ZONE ] | TIMESTAMP [ ] [ WITH TIME ZONE ]

Parameters:

tokens -

Returns:

the DataType

Throws:

ParsingException

parseMiscellaneousType

protected DataType parseMiscellaneousType(DdlTokenStream tokens)
                                   throws ParsingException

Parses SQL-92 Misc data types. ::= INTERVAL ::= TO | ::= [ ] ::= YEAR | MONTH | DAY | HOUR | MINUTE ::= ::= | SECOND [ ] ::= ::= [ ] | SECOND [ [ ] ]

Parameters:

tokens -

Returns:

the DataType

Throws:

ParsingException

parseCustomType

protected DataType parseCustomType(DdlTokenStream tokens)
                            throws ParsingException

General catch-all data type parsing method that sub-classes can override to parse database-specific data types.

Parameters:

tokens -

Returns:

the DataType

Throws:

ParsingException

getDefaultLength

public int getDefaultLength()

Returns:

integer default value for length

setDefaultLength

public void setDefaultLength(int defaultLength)

Parameters:

defaultLength -

getDefaultPrecision

public int getDefaultPrecision()

Returns:

integer default value for precision

setDefaultPrecision

public void setDefaultPrecision(int defaultPrecision)

Parameters:

defaultPrecision -

getDefaultScale

public int getDefaultScale()

Returns:

integer default value for scale

setDefaultScale

public void setDefaultScale(int defaultScale)

Parameters:

defaultScale -

parseLong

protected long parseLong(DdlTokenStream tokens,
                         DataType dataType)

Returns a long value from the input token stream assuming the long is not bracketed with parenthesis.

Parameters:

tokens -

dataType -

Returns:

the long value

parseBracketedLong

protected long parseBracketedLong(DdlTokenStream tokens,
                                  DataType dataType)

Returns a long value from the input token stream assuming the long is bracketed with parenthesis.

Parameters:

tokens -

dataType -

Returns:

the long value

parseLong

protected long parseLong(String value)

Returns the integer value of the input string. Handles both straight integer string or complex KMG (CLOB or BLOB) value.

Parameters:

value -

Returns:

integer value

Throws:

NumberFormatException - if a valid integer is not found

consume

protected String consume(DdlTokenStream tokens,
                         DataType dataType,
                         boolean addSpacePrefix)
                  throws ParsingException

Parameters:

tokens -

dataType -

addSpacePrefix -

Returns:

consumed String value

Throws:

ParsingException

consume

protected String consume(DdlTokenStream tokens,
                         DataType dataType,
                         boolean addSpacePrefix,
                         String str)
                  throws ParsingException

Parameters:

tokens -

dataType -

addSpacePrefix -

str -

Returns:

consumed string value

Throws:

ParsingException

consume

protected String consume(DdlTokenStream tokens,
                         DataType dataType,
                         boolean addSpacePrefix,
                         String initialStr,
                         String... additionalStrs)
                  throws ParsingException

Parameters:

tokens -

dataType -

addSpacePrefix -

initialStr -

additionalStrs -

Returns:

the consumed String

Throws:

ParsingException

consume

protected String consume(DdlTokenStream tokens,
                         DataType dataType,
                         boolean addSpacePrefix,
                         String[] additionalStrs)
                  throws ParsingException

Throws:

ParsingException

canConsume

protected boolean canConsume(DdlTokenStream tokens,
                             DataType dataType,
                             boolean addSpacePrefix,
                             String initialStr,
                             String... additionalStrs)
                      throws ParsingException

Parameters:

tokens -

dataType -

addSpacePrefix -

initialStr -

additionalStrs -

Returns:

did consume

Throws:

ParsingException

canConsume

protected boolean canConsume(DdlTokenStream tokens,
                             DataType dataType,
                             boolean addSpacePrefix,
                             String[] additionalStrs)
                      throws ParsingException

Parameters:

tokens -

dataType -

addSpacePrefix -

additionalStrs -

Returns:

did consume

Throws:

ParsingException

canConsume

protected boolean canConsume(DdlTokenStream tokens,
                             DataType dataType,
                             boolean addSpacePrefix,
                             int type)
                      throws ParsingException

Parameters:

tokens -

dataType -

addSpacePrefix -

type -

Returns:

consumed String value

Throws:

ParsingException

canConsumeAnyOf

protected boolean canConsumeAnyOf(DdlTokenStream tokens,
                                  DataType dataType,
                                  boolean addSpacePrefix,
                                  String initialStr,
                                  String... additionalStrs)
                           throws ParsingException

Parameters:

tokens -

dataType -

addSpacePrefix -

initialStr -

additionalStrs -

Returns:

did consume any

Throws:

ParsingException

getStatementTypeName

public String getStatementTypeName(String[] stmtPhrase)

Parameters:

stmtPhrase -

Returns:

concatenated name

setPropertiesOnNode

public void setPropertiesOnNode(AstNode columnNode,
                                DataType datatype)