com.sun.faces.application

Class MethodBindingMethodExpressionAdapter

java.lang.Object

javax.faces.el.MethodBinding

com.sun.faces.application.MethodBindingMethodExpressionAdapter

All Implemented Interfaces:

Serializable, StateHolder

public class MethodBindingMethodExpressionAdapter
extends MethodBinding
implements StateHolder, Serializable

Wrap a MethodExpression instance and expose it as a MethodBinding

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MethodBindingMethodExpressionAdapter()
MethodBindingMethodExpressionAdapter(javax.el.MethodExpression methodExpression)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object other)
String	getExpressionString() Return the (possibly null) expression String, with leading and trailing delimiters, from which this MethodBinding was built.
Class<?>	getType(FacesContext context) Return the Java class representing the return type from the method identified by this method binding expression.
javax.el.MethodExpression	getWrapped()
int	hashCode()
Object	invoke(FacesContext context, Object[] params) Return the return value (if any) resulting from a call to the method identified by this method binding expression, passing it the specified parameters, relative to the specified FacesContext.
boolean	isTransient() If true, the Object implementing this interface must not participate in state saving or restoring.
void	restoreState(FacesContext context, Object state) Perform any processing required to restore the state from the entries in the state Object.
Object	saveState(FacesContext context) Gets the state of the instance as a Serializable Object.
void	setTransient(boolean tranzient) Denotes whether or not the Object implementing this interface must or must not participate in state saving or restoring.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MethodBindingMethodExpressionAdapter

public MethodBindingMethodExpressionAdapter()

MethodBindingMethodExpressionAdapter

public MethodBindingMethodExpressionAdapter(javax.el.MethodExpression methodExpression)

Method Detail

invoke

public Object invoke(FacesContext context,
                     Object[] params)
              throws EvaluationException,
                     MethodNotFoundException

Description copied from class: MethodBinding

Return the return value (if any) resulting from a call to the method identified by this method binding expression, passing it the specified parameters, relative to the specified FacesContext.

Specified by:

invoke in class MethodBinding

Parameters:

context - FacesContext for the current request

params - Array of parameters to be passed to the called method, or null for no parameters

Returns:

the result of the invocation

Throws:

EvaluationException - if an exception is thrown by the called method (the thrown exception must be included as the cause property of this exception)

MethodNotFoundException - if no suitable method can be found

getType

public Class<?> getType(FacesContext context)
                 throws MethodNotFoundException

Description copied from class: MethodBinding

Return the Java class representing the return type from the method identified by this method binding expression.

Specified by:

getType in class MethodBinding

Parameters:

context - FacesContext for the current request

Returns:

the type of the return value

Throws:

MethodNotFoundException - if no suitable method can be found

getExpressionString

public String getExpressionString()

Description copied from class: MethodBinding

Return the (possibly null) expression String, with leading and trailing delimiters, from which this MethodBinding was built. The default implementation returns null.

Overrides:

getExpressionString in class MethodBinding

Returns:

the expression string

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

isTransient

public boolean isTransient()

Description copied from interface: StateHolder

If true, the Object implementing this interface must not participate in state saving or restoring.

Specified by:

isTransient in interface StateHolder

Returns:

true if transient, false otherwise.

setTransient

public void setTransient(boolean tranzient)

Description copied from interface: StateHolder

Denotes whether or not the Object implementing this interface must or must not participate in state saving or restoring.

Specified by:

setTransient in interface StateHolder

Parameters:

tranzient - boolean pass true if this Object will not participate in state saving or restoring, otherwise pass false.

saveState

public Object saveState(FacesContext context)

Description copied from interface: StateHolder

Gets the state of the instance as a Serializable Object.

If the class that implements this interface has references to instances that implement StateHolder (such as a UIComponent with event handlers, validators, etc.) this method must call the StateHolder.saveState(javax.faces.context.FacesContext) method on all those instances as well. This method must not save the state of children and facets. That is done via the StateManager

This method must not alter the state of the implementing object. In other words, after executing this code:

 Object state = component.saveState(facesContext);
 

component should be the same as before executing it.

The return from this method must be Serializable

Specified by:

saveState in interface StateHolder

Parameters:

context - the Faces context.

Returns:

the saved state.

restoreState

public void restoreState(FacesContext context,
                         Object state)

Description copied from interface: StateHolder

Perform any processing required to restore the state from the entries in the state Object.

If the class that implements this interface has references to instances that also implement StateHolder (such as a UIComponent with event handlers, validators, etc.) this method must call the StateHolder.restoreState(javax.faces.context.FacesContext, java.lang.Object) method on all those instances as well.

If the state argument is null, take no action and return.

Specified by:

restoreState in interface StateHolder

Parameters:

context - the Faces context.

state - the state.

getWrapped

public javax.el.MethodExpression getWrapped()