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java.lang.Object | +--org.apache.commons.jexl.parser.SimpleNode | +--org.apache.commons.jexl.parser.ASTReference
reference - any variable expression.
Field Summary | |
---|---|
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. |
|
ASTReference(Parser p,
int id)
Create a node with the given parser and id. |
Method Summary | |
---|---|
Object |
execute(Object obj,
JexlContext jc)
evaluate each piece of the reference. |
String |
getRootString()
Gets the variable name of root . |
Object |
jjtAccept(ParserVisitor visitor,
Object data)
Accept the visitor. |
void |
jjtClose()
Store the first child as root . |
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 |
protected SimpleNode root
Constructor Detail |
public ASTReference(int id)
id
- node id.public ASTReference(Parser p, int id)
p
- a parser.id
- node id.Method Detail |
public Object jjtAccept(ParserVisitor visitor, 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 Object value(JexlContext jc) throws Exception
value
in class SimpleNode
jc
- the context to retrieve values from.
Exception
- when evaluating the operands fails.public void jjtClose()
root
.
jjtClose
in interface Node
jjtClose
in class SimpleNode
public Object execute(Object obj, JexlContext jc) throws Exception
execute
in class SimpleNode
jc
- the JexlContext
to evaluate against.obj
- not used. root.value(jc) is used instead.
Exception
- on any errorpublic String getRootString() throws Exception
root
.
Exception
- on any errorASTIdentifier.getIdentifierString()
,
ASTArrayAccess.getIdentifierString()
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