net.sf.jguiraffe.di.impl.providers

Class SetBeanProvider

java.lang.Object

net.sf.jguiraffe.di.impl.providers.SimpleBeanProvider

net.sf.jguiraffe.di.impl.providers.CollectionBeanProvider

net.sf.jguiraffe.di.impl.providers.SetBeanProvider

All Implemented Interfaces:

BeanProvider

public class SetBeanProvider
extends CollectionBeanProvider

A specialized CollectionBeanProvider implementation that creates a java.util.Set bean.

The createCollection() method is implemented to create a concrete implementation of the java.util.Set interface. Depending on the ordered flag that can be passed to the constructor either a java.util.HashSet (if ordered is false) or a java.util.LinkedHashSet (if ordered is true) is created. In the latter case the set will remember the order of its elements.

Implementation note: Objects of this class are immutable and thus can be shared between multiple threads.

Version:

$Id: SetBeanProvider.java 205 2012-01-29 18:29:57Z oheger $

Author:

Oliver Heger

Constructor Summary

Constructors

Constructor and Description
SetBeanProvider(Collection<Dependency> deps, boolean ordered) Creates a new instance of SetBeanProvider and initializes it with the dependencies of its elements and the ordered flag.

Method Summary

Modifier and Type	Method and Description
protected Collection<Object>	createCollection(int size) Creates the collection managed by this bean provider.
boolean	isOrdered() Returns the ordered flag.

Methods inherited from class net.sf.jguiraffe.di.impl.providers.CollectionBeanProvider

getBean, getBeanClass, getDependencies, getElementDependencies

Methods inherited from class net.sf.jguiraffe.di.impl.providers.SimpleBeanProvider

getLockID, isBeanAvailable, setLockID, shutdown

Methods inherited from class java.lang.Object

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

Constructor Detail

SetBeanProvider

public SetBeanProvider(Collection<Dependency> deps,
                       boolean ordered)

Creates a new instance of SetBeanProvider and initializes it with the dependencies of its elements and the ordered flag.

Parameters:

deps - the dependencies representing the elements of the set

ordered - a flag whether the set created should keep the order of its elements

Throws:

IllegalArgumentException - if the collection with the dependencies is null

Method Detail

isOrdered

public boolean isOrdered()

Returns the ordered flag. This flag determines the type of the collection created by this bean provider.

Returns:

the ordered flag

createCollection

protected Collection<Object> createCollection(int size)

Creates the collection managed by this bean provider. This implementation will return an implementation of the java.util.Set interface (the concrete type depends on the ordered property.

Specified by:

createCollection in class CollectionBeanProvider

Parameters:

size - the size of the collection

Returns:

a new instance of the collection managed by this bean provider