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java.lang.Objectorg.apache.commons.jxpath.ri.compiler.Expression
org.apache.commons.jxpath.ri.compiler.Constant
public class Constant
A compile tree element containing a constant number or string.
Nested Class Summary |
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Nested classes/interfaces inherited from class org.apache.commons.jxpath.ri.compiler.Expression |
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Expression.PointerIterator, Expression.ValueIterator |
Field Summary |
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Fields inherited from class org.apache.commons.jxpath.ri.compiler.Expression |
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NOT_A_NUMBER, ONE, ZERO |
Constructor Summary | |
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Constant(Number number)
Create a new Constant. |
|
Constant(String string)
Create a new Constant. |
Method Summary | |
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Object |
compute(EvalContext context)
Evaluates the expression. |
boolean |
computeContextDependent()
Returns false |
Object |
computeValue(EvalContext context)
Evaluates the expression. |
boolean |
isContextDependent()
Returns false |
String |
toString()
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Methods inherited from class org.apache.commons.jxpath.ri.compiler.Expression |
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iterate, iteratePointers |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public Constant(Number number)
number
- constantpublic Constant(String string)
string
- constantMethod Detail |
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public Object compute(EvalContext context)
Expression
compute
in class Expression
context
- evaluation context
public Object computeValue(EvalContext context)
Expression
computeValue
in class Expression
context
- evaluation context
public boolean isContextDependent()
isContextDependent
in class Expression
public boolean computeContextDependent()
computeContextDependent
in class Expression
public String toString()
toString
in class Object
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