Package org.apache.commons.jexl2.parser
Class SimpleNode
- java.lang.Object
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- org.apache.commons.jexl2.parser.SimpleNode
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- All Implemented Interfaces:
Node
- Direct Known Subclasses:
JexlNode
public class SimpleNode extends java.lang.Object implements Node
A class originally generated by JJTree with the following JavaCCOptions: MULTI=true,NODE_USES_PARSER=true,VISITOR=true,TRACK_TOKENS=false,NODE_PREFIX=AST,NODE_EXTENDS=,NODE_FACTORY= Works around issue https://javacc.dev.java.net/issues/show_bug.cgi?id=227 As soon as this issue if fixed and the maven plugin uses the correct version of Javacc, this class can go away. The technical goal is to ensure every reference made in the parser was to a JexlNode; unfortunately, as in javacc 4.1, it still uses a SimpleNode reference in the generated ParserVisitor. Besides, there is no need to keep the parser around in the node. The functional goal is to a allow a volatile value in the node so it can serve as a last evaluation cache even in multi-threaded executions.
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Constructor Summary
Constructors Constructor Description SimpleNode(int i)
Creates a SimpleNode instance.SimpleNode(Parser p, int i)
Creates a SimpleNode instance.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
childrenAccept(ParserVisitor visitor, java.lang.Object data)
Accept the visitor on all this node's children.void
dump(java.lang.String prefix)
java.lang.Object
jjtAccept(ParserVisitor visitor, java.lang.Object data)
Accept the visitor.void
jjtAddChild(Node n, int i)
Adds a child node.void
jjtClose()
This method is called after all the child nodes have been added.JexlNode
jjtGetChild(int i)
Gets a child of this node.int
jjtGetNumChildren()
Gets this node number of children.JexlNode
jjtGetParent()
Gets this node's parent.java.lang.Object
jjtGetValue()
Gets this node value.void
jjtOpen()
This method is called after the node has been made the current node.void
jjtSetParent(Node n)
Sets this node's parent.void
jjtSetValue(java.lang.Object value)
Sets this node value.java.lang.String
toString()
java.lang.String
toString(java.lang.String prefix)
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Constructor Detail
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SimpleNode
public SimpleNode(int i)
Creates a SimpleNode instance.- Parameters:
i
- the node type identifier
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SimpleNode
public SimpleNode(Parser p, int i)
Creates a SimpleNode instance.- Parameters:
p
- the parser instancei
- the node type identifier
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Method Detail
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jjtOpen
public void jjtOpen()
This method is called after the node has been made the current node. It indicates that child nodes can now be added to it.
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jjtClose
public void jjtClose()
This method is called after all the child nodes have been added.
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jjtSetParent
public void jjtSetParent(Node n)
Sets this node's parent.- Specified by:
jjtSetParent
in interfaceNode
- Parameters:
n
- the parent
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jjtGetParent
public JexlNode jjtGetParent()
Gets this node's parent.- Specified by:
jjtGetParent
in interfaceNode
- Returns:
- the parent node
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jjtAddChild
public void jjtAddChild(Node n, int i)
Adds a child node.- Specified by:
jjtAddChild
in interfaceNode
- Parameters:
n
- the child nodei
- the child offset
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jjtGetChild
public JexlNode jjtGetChild(int i)
Gets a child of this node.- Specified by:
jjtGetChild
in interfaceNode
- Parameters:
i
- the child offset- Returns:
- the child node
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jjtGetNumChildren
public int jjtGetNumChildren()
Gets this node number of children.- Specified by:
jjtGetNumChildren
in interfaceNode
- Returns:
- the number of children
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jjtSetValue
public void jjtSetValue(java.lang.Object value)
Sets this node value.- Parameters:
value
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jjtGetValue
public java.lang.Object jjtGetValue()
Gets this node value.- Returns:
- value
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jjtAccept
public java.lang.Object jjtAccept(ParserVisitor visitor, java.lang.Object data)
Accept the visitor.
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childrenAccept
public java.lang.Object childrenAccept(ParserVisitor visitor, java.lang.Object data)
Accept the visitor on all this node's children.- Parameters:
visitor
- the visitordata
- contextual data- Returns:
- result of visit
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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toString
public java.lang.String toString(java.lang.String prefix)
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dump
public void dump(java.lang.String prefix)
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