org.apache.commons.jxpath.ri.compiler
Class VariableReference
java.lang.Object
|
+--org.apache.commons.jxpath.ri.compiler.Expression
|
+--org.apache.commons.jxpath.ri.compiler.VariableReference
- public class VariableReference
- extends Expression
An element of the compile tree holding a variable reference.
- Version:
- $Revision: 1.4 $ $Date: 2002/05/08 00:39:59 $
- Author:
- Dmitri Plotnikov
Fields inherited from class org.apache.commons.jxpath.ri.compiler.Expression |
NaN, ONE, OP_AND, OP_CONSTANT, OP_CORE_FUNCTION, OP_DIV, OP_EQ, OP_EXPRESSION_PATH, OP_FUNCTION, OP_GT, OP_GTE, OP_KEY_LOOKUP, OP_LOCATION_PATH, OP_LT, OP_LTE, OP_MINUS, OP_MOD, OP_MULT, OP_NE, OP_OR, OP_STEP, OP_SUM, OP_UNARY_MINUS, OP_UNION, OP_VAR, ZERO |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
VariableReference
public VariableReference(QName varName)
getVariableName
public QName getVariableName()
toString
public java.lang.String toString()
- Overrides:
toString
in class Expression
isContextDependent
public boolean isContextDependent()
- Description copied from class:
Expression
- Returns true if this expression should be re-evaluated
each time the current position in the context changes.
- Overrides:
isContextDependent
in class Expression
computeContextDependent
public boolean computeContextDependent()
- Description copied from class:
Expression
- Implemented by subclasses and result is cached by isContextDependent()
- Specified by:
computeContextDependent
in class Expression
compute
public java.lang.Object compute(EvalContext context)
- Specified by:
compute
in class Expression
computeValue
public java.lang.Object computeValue(EvalContext context)
- Returns the value of the variable.
- Specified by:
computeValue
in class Expression
Copyright (c) 2001 - Apache Software Foundation