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java.lang.Objectcz.cuni.amis.utils.collections.SimpleListener<T>
public abstract class SimpleListener<T>
Collection listener with only one method changed() called on each change.
Constructor Summary | |
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SimpleListener()
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Method Summary | |
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protected abstract void |
changed(Collection<T> collection,
Collection<T> added,
Collection<T> removed)
Called when a change occures on the collection. |
void |
postAddEvent(Collection<T> alreadyAdded,
Collection<T> whereWereAdded)
Called after the elements were added to the collection. |
void |
postRemoveEvent(Collection<T> alreadyRemoved,
Collection<T> whereWereRemoved)
Called after the elements were removed from the collection. |
void |
preAddEvent(Collection<T> toBeAdded,
Collection<T> whereToAdd)
Called before the elements will be added to the collection. |
void |
preRemoveEvent(Collection<T> toBeRemoved,
Collection<T> whereToRemove)
Called before the elements will be removed from the collection. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public SimpleListener()
Method Detail |
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public void preAddEvent(Collection<T> toBeAdded, Collection<T> whereToAdd)
CollectionEventListener
preAddEvent
in interface CollectionEventListener<T>
toBeAdded
- collection of items to be added, in case of one item this contains a collection with one itempublic void postAddEvent(Collection<T> alreadyAdded, Collection<T> whereWereAdded)
CollectionEventListener
postAddEvent
in interface CollectionEventListener<T>
public void preRemoveEvent(Collection<T> toBeRemoved, Collection<T> whereToRemove)
CollectionEventListener
preRemoveEvent
in interface CollectionEventListener<T>
public void postRemoveEvent(Collection<T> alreadyRemoved, Collection<T> whereWereRemoved)
CollectionEventListener
postRemoveEvent
in interface CollectionEventListener<T>
protected abstract void changed(Collection<T> collection, Collection<T> added, Collection<T> removed)
collection
- The changed collection.
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