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java.lang.Object | +--org.apache.commons.el.ValueSuffix | +--org.apache.commons.el.ArraySuffix
Represents an operator that obtains a Map entry, an indexed value, a property value, or an indexed property value of an object. The following are the rules for evaluating this operator:
Evaluating a[b] (assuming a.b == a["b"]) a is null return null b is null return null a is Map !a.containsKey (b) return null a.get(b) == null return null otherwise return a.get(b) a is List or array coerce b to int (using coercion rules) coercion couldn't be performed error a.get(b) or Array.get(a, b) throws ArrayIndexOutOfBoundsException or IndexOutOfBoundsException return null a.get(b) or Array.get(a, b) throws other exception error return a.get(b) or Array.get(a, b) coerce b to String b is a readable property of a getter throws an exception error otherwise return result of getter call otherwise error
Field Summary | |
(package private) Expression |
mIndex
|
(package private) static java.lang.Object[] |
sNoArgs
|
Constructor Summary | |
ArraySuffix(Expression pIndex)
Constructor |
Method Summary | |
java.lang.Object |
evaluate(java.lang.Object pValue,
javax.servlet.jsp.el.VariableResolver pResolver,
javax.servlet.jsp.el.FunctionMapper functions,
Logger pLogger)
Evaluates the expression in the given context, operating on the given value. |
(package private) java.lang.Object |
evaluateIndex(javax.servlet.jsp.el.VariableResolver pResolver,
javax.servlet.jsp.el.FunctionMapper functions,
Logger pLogger)
Gets the value of the index |
java.lang.String |
getExpressionString()
Returns the expression in the expression language syntax |
Expression |
getIndex()
|
(package private) java.lang.String |
getOperatorSymbol()
Returns the operator symbol |
void |
setIndex(Expression pIndex)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
static java.lang.Object[] sNoArgs
Expression mIndex
Constructor Detail |
public ArraySuffix(Expression pIndex)
Method Detail |
public Expression getIndex()
public void setIndex(Expression pIndex)
java.lang.Object evaluateIndex(javax.servlet.jsp.el.VariableResolver pResolver, javax.servlet.jsp.el.FunctionMapper functions, Logger pLogger) throws javax.servlet.jsp.el.ELException
javax.servlet.jsp.el.ELException
java.lang.String getOperatorSymbol()
public java.lang.String getExpressionString()
getExpressionString
in class ValueSuffix
public java.lang.Object evaluate(java.lang.Object pValue, javax.servlet.jsp.el.VariableResolver pResolver, javax.servlet.jsp.el.FunctionMapper functions, Logger pLogger) throws javax.servlet.jsp.el.ELException
evaluate
in class ValueSuffix
javax.servlet.jsp.el.ELException
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