ELResolver
when operating with a null
base
argument.public abstract class VariableResolver extends Object
VariableResolver represents a pluggable mechanism for resolving a top-level variable reference at evaluation time.
Constructor and Description |
---|
VariableResolver()
Deprecated.
|
Modifier and Type | Method and Description |
---|---|
abstract Object |
resolveVariable(FacesContext context,
String name)
Deprecated.
Resolve the specified variable name, and return the corresponding
object, if any; otherwise, return
null . |
public abstract Object resolveVariable(FacesContext context, String name) throws EvaluationException
Resolve the specified variable name, and return the corresponding
object, if any; otherwise, return null
.
context
- FacesContext
against which to resolve
this variable namename
- Name of the variable to be resolvedEvaluationException
- if an exception is thrown while resolving
the variable name (the thrown exception must be included as the
cause
property of this exception)NullPointerException
- if context
or name
is null
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