org.apache.avalon.framework.component

Class DefaultComponentSelector

java.lang.Object

org.apache.avalon.framework.component.DefaultComponentSelector

Implemented Interfaces:: Component, ComponentSelector

public class DefaultComponentSelector

extends java.lang.Object

implements ComponentSelector

This is the default implementation of the ComponentSelector.

Deprecated: Use DefaultServiceSelector instead.

Version:

Author:: Avalon Development Team

Method Summary
`protected void`	`checkWriteable()` Check if this component m_manager is writeable.
`protected Map`	`getComponentMap()` Helper method for subclasses to retrieve component map.
`boolean`	`hasComponent(Object hint)` Returns whether a Component exists or not
`void`	`makeReadOnly()` Make this component selector read-only.
`void`	`put(Object hint, Component component)` Populate the ComponentSelector.
`void`	`release(Component component)` Release component.
`Component`	`select(Object hint)` Select the desired component.

checkWriteable

protected final void checkWriteable()
            throws IllegalStateException

Check if this component m_manager is writeable.

getComponentMap

protected final Map getComponentMap()

Helper method for subclasses to retrieve component map.
Returns:
the component map

hasComponent

public boolean hasComponent(Object hint)

Returns whether a Component exists or not
Specified by:
hasComponent in interface ComponentSelector
Parameters:
hint - the hint to retrieve Component
Returns:
true if the Component exists

makeReadOnly

public void makeReadOnly()

Make this component selector read-only.

put

public void put(Object hint,
                Component component)

Populate the ComponentSelector.
Parameters:
hint - the hint to retrieve Component
component - the component to add

release

public void release(Component component)

Release component.
Specified by:
release in interface ComponentSelector
Parameters:
component - the component

select

public Component select(Object hint)
            throws ComponentException

Select the desired component. It does not cascade, neither should it.
Specified by:
select in interface ComponentSelector
Parameters:
hint - the hint to retrieve Component
Returns:
the Component
Throws:
ComponentException - if an error occurs

Overview Package Tree Index Deprecated About
Prev Class \| Next Class	Frames \| No Frames
Summary: Nested \| Field \| Method \| Constr	Detail: Nested \| Field \| Method \| Constr