org.fujion.expression

Class ELContext

java.lang.Object

org.fujion.expression.ELContext

public class ELContext
extends Object

This serves as the context root for an EL expression evaluation.

Constructor Summary

Constructors

Constructor and Description
ELContext(BaseComponent component, BaseComponent parent, PageElement element, Map<String,Object> args) Create an EL context.

Method Summary

Modifier and Type	Method and Description
Object	getValue(String name) Returns a value for the named object.

Methods inherited from class java.lang.Object

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

Constructor Detail

ELContext

public ELContext(BaseComponent component,
                 BaseComponent parent,
                 PageElement element,
                 Map<String,Object> args)

Create an EL context.

Parameters:

component - The current component.

parent - The component that will become the parent.

element - The current page element.

args - The argument map passed to the materializer.

Method Detail

getValue

public Object getValue(String name)

Returns a value for the named object. If the name is "self", the component itself is returned. Otherwise, name resolution is attempted from several sources in the following order:

1. Tag library prefixes
2. The argument map passed to the materializer
3. The component's attribute map
4. The component's namespace
5. All ancestor attribute maps

Parameters:

name - The object name.

Returns:

The value of the named object, or null if not found.