org.richfaces.cdk.templatecompiler.el.node
Class AbstractTreeNode

java.lang.Object
  org.richfaces.cdk.templatecompiler.el.node.AbstractTreeNode

All Implemented Interfaces:

ITreeNode

Direct Known Subclasses:

AbstractBinaryOperationTreeNode, AbstractMethodTreeNode, AstBracketSuffixTreeNode, AstChoiceTreeNode, AstDeferredOrDynamicExpressionTreeNode, AstEmptyTreeNode, AstFloatingPointTreeNode, AstIdentifierTreeNode, AstIntegerTreeNode, AstLiteralTreeNode, AstNegativeTreeNode, AstNotTreeNode, AstPropertySuffixTreeNode, AstStringTreeNode, AstValueTreeNode, ConstantValueTreeNode, EqualityTestTreeNode

public abstract class AbstractTreeNode
extends Object
implements ITreeNode

This abstract class implement some methods of ITreeNode interface to using in subclasses.

Author:

amarkhel

Constructor Summary

AbstractTreeNode(org.jboss.el.parser.Node node)

Method Summary

protected String	coerceToBoolean(String value, ELVisitor visitor)
ITreeNode	getChild(int index, ELVisitor visitor) Visit current node.
protected String	getChildOutput(int childIndex, ELVisitor visitor) Collects output from visiting child of the current node with the specified index and returns collected string.
int	getChildrenCount() Returns count of children for this node
org.jboss.el.parser.Node	getNode() Return node of current wrapper.
abstract void	visit(StringBuilder sb, ELVisitor visitor) Return child of wrapped node by specified index.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractTreeNode

public AbstractTreeNode(org.jboss.el.parser.Node node)

Method Detail

getChildOutput

protected String getChildOutput(int childIndex,
                                ELVisitor visitor)
                         throws ParsingException

Collects output from visiting child of the current node with the specified index and returns collected string.

Parameters:

childIndex -

context -

visitor -

Returns:

Throws:

ParsingException

coerceToBoolean

protected String coerceToBoolean(String value,
                                 ELVisitor visitor)

getNode

public org.jboss.el.parser.Node getNode()

Return node of current wrapper.

Specified by:

getNode in interface ITreeNode

Returns:

instance of org.jboss.el.parser.Node

getChild

public ITreeNode getChild(int index,
                          ELVisitor visitor)
                   throws ParsingException

Visit current node. Generate Java code, that represent current node.

Specified by:

getChild in interface ITreeNode

Parameters:

stringBuilder - instance to collect information.

context - - context to resolve beans

visitor - - ELVisitor

Returns:

instance of org.jboss.el.parser.Node

Throws:

ParsingException - - if error occurred during parsing process.

getChildrenCount

public int getChildrenCount()

Returns count of children for this node

Specified by:

getChildrenCount in interface ITreeNode

Returns:

children count

visit

public abstract void visit(StringBuilder sb,
                           ELVisitor visitor)
                    throws ParsingException

Return child of wrapped node by specified index. Abstract operation to override in subclasses.

Specified by:

visit in interface ITreeNode

Parameters:

index - - index of child.

Throws:

ParsingException - - if error occurred(child not found).