org.zkoss.zel
Class BeanNameResolver

java.lang.Object
  org.zkoss.zel.BeanNameResolver

public abstract class BeanNameResolver
extends Object

Base implementation that provides a minimal default implementation that is intended to be extended by application developers.

Since:

EL 3.0

Constructor Summary

BeanNameResolver()

Method Summary

boolean	canCreateBean(String beanName) Is it permitted to create a bean of the given name?
Object	getBean(String beanName) Returns the named bean.
boolean	isNameResolved(String beanName) Can this resolver resolve the given bean name?
boolean	isReadOnly(String beanName) Is the named bean read-only?
void	setBeanValue(String beanName, Object value) Sets a value of a bean of the given name.

Methods inherited from class java.lang.Object

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

Constructor Detail

BeanNameResolver

public BeanNameResolver()

Method Detail

isNameResolved

public boolean isNameResolved(String beanName)

Can this resolver resolve the given bean name?

Parameters:

beanName - The bean name to resolve

Returns:

This default implementation always returns false

getBean

public Object getBean(String beanName)

Returns the named bean.

Parameters:

beanName - The bean name to return

Returns:

This default implementation always returns null

setBeanValue

public void setBeanValue(String beanName,
                         Object value)
                  throws PropertyNotWritableException

Sets a value of a bean of the given name. If the named bean does not exist and canCreateBean(java.lang.String) returns true then a bean is created with the given value.

Parameters:

beanName - The name of the bean to be set/create

value - The value of the bean to set/create

Throws:

PropertyNotWritableException - if the bean is read only

isReadOnly

public boolean isReadOnly(String beanName)

Is the named bean read-only?

Parameters:

beanName - The name of the bean of interest

Returns:

true if the bean is read only, otherwise false

canCreateBean

public boolean canCreateBean(String beanName)

Is it permitted to create a bean of the given name?

Parameters:

beanName - The name of the bean of interest

Returns:

true if the bean may be created, otherwise false