public class ArraySuffix extends ValueSuffix
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
| Constructor and Description |
|---|
ArraySuffix(Expression pIndex)
Constructor
|
| Modifier and Type | Method and Description |
|---|---|
Object |
evaluate(Object pValue,
Object pContext,
VariableResolver pResolver,
Map functions,
String defaultPrefix,
Logger pLogger)
Evaluates the expression in the given context, operating on the
given value.
|
String |
getExpressionString()
Returns the expression in the expression language syntax
|
Expression |
getIndex() |
void |
setIndex(Expression pIndex) |
public ArraySuffix(Expression pIndex)
public Expression getIndex()
public void setIndex(Expression pIndex)
public String getExpressionString()
getExpressionString in class ValueSuffixpublic Object evaluate(Object pValue, Object pContext, VariableResolver pResolver, Map functions, String defaultPrefix, Logger pLogger) throws ELException
evaluate in class ValueSuffixELExceptionCopyright © 2017 JBoss, a division of Red Hat, Inc.. All Rights Reserved.