com.sun.faces.el
Class ChainAwareVariableResolver
java.lang.Object
javax.faces.el.VariableResolver
com.sun.faces.el.ChainAwareVariableResolver
public class ChainAwareVariableResolver
- extends javax.faces.el.VariableResolver
This special VariableResolver serves as the "original"
VariableResolver that is passed to the one-arg ctor for the
first custom VariableResolver that is encountered during
application configuration. Subsequent VariableResolver instances get
passed the previous VariableResolver instance, per section 10.4.5 of
the spec.
The "specialness" of this VariableResolver is found in its resolveVariable(javax.faces.context.FacesContext, java.lang.String)
method, which delegates to the head of the
"correct" ELResolver chain based on the context in which this
expression is being evaluated. If the expression being evaluated
originated in a JSP page, the Application
's
ExpressionFactory
is used to create a
ValueExpression
, which is then evaluated to resolve the
variable. This will cause the ELResolver chain described in section
5.6.1 of the spec to be used. If the expression being evaluated
originated in a programmatic API call, the Application
's
ELResolver
is used to resolve the variable. This will
cause the ELResolver chain described in section 5.6.2 of the spec to
be used.
Method Summary |
java.lang.Object |
resolveVariable(javax.faces.context.FacesContext context,
java.lang.String name)
See the class javadocs. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ChainAwareVariableResolver
public ChainAwareVariableResolver()
resolveVariable
public java.lang.Object resolveVariable(javax.faces.context.FacesContext context,
java.lang.String name)
throws javax.faces.el.EvaluationException
- See the class javadocs.
- Specified by:
resolveVariable
in class javax.faces.el.VariableResolver
- Throws:
javax.faces.el.EvaluationException
Copyright ? 2002-2006 Sun Microsystems, Inc. All Rights Reserved.