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java.lang.Objectorg.apache.commons.jexl.parser.SimpleNode
org.apache.commons.jexl.parser.ASTReference
public class ASTReference
reference - any variable expression.
Field Summary | |
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protected SimpleNode |
root
first variable in the expression. |
Fields inherited from class org.apache.commons.jexl.parser.SimpleNode |
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children, id, parent, parser |
Constructor Summary | |
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ASTReference(int id)
Create the node given an id. |
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ASTReference(Parser p,
int id)
Create a node with the given parser and id. |
Method Summary | |
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java.lang.Object |
execute(java.lang.Object obj,
JexlContext jc)
evaluate each piece of the reference. |
private java.lang.String |
getIdentifierToDepth(int i)
This method returns a variable from this identifier and it's children. |
java.lang.String |
getRootString()
Gets the variable name of root . |
java.lang.Object |
jjtAccept(ParserVisitor visitor,
java.lang.Object data)
Accept the visitor. |
void |
jjtClose()
Store the first child as root . |
java.lang.Object |
value(JexlContext jc)
Gets the value of this node. |
Methods inherited from class org.apache.commons.jexl.parser.SimpleNode |
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childrenAccept, dump, interpret, jjtAddChild, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, setValue, toString, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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protected SimpleNode root
Constructor Detail |
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public ASTReference(int id)
id
- node id.public ASTReference(Parser p, int id)
p
- a parser.id
- node id.Method Detail |
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public java.lang.Object jjtAccept(ParserVisitor visitor, java.lang.Object data)
jjtAccept
in interface Node
jjtAccept
in class SimpleNode
visitor
- a ParserVisitor
.data
- data to be passed along to the visitor.
ParserVisitor.visit(org.apache.commons.jexl.parser.SimpleNode, java.lang.Object)
public java.lang.Object value(JexlContext jc) throws java.lang.Exception
value
in class SimpleNode
jc
- the context to retrieve values from.
java.lang.Exception
- when evaluating the operands fails.public void jjtClose()
root
.
jjtClose
in interface Node
jjtClose
in class SimpleNode
public java.lang.Object execute(java.lang.Object obj, JexlContext jc) throws java.lang.Exception
execute
in class SimpleNode
jc
- the JexlContext
to evaluate against.obj
- not used. root.value(jc) is used instead.
java.lang.Exception
- on any errorprivate java.lang.String getIdentifierToDepth(int i)
i
- the depth of the child nodes to go to
public java.lang.String getRootString() throws java.lang.Exception
root
.
java.lang.Exception
- on any errorASTIdentifier.getIdentifierString()
,
ASTArrayAccess.getIdentifierString()
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