de.zib.gndms.model.common.repository.QueuedDao< K, M, D > Class Reference

Inheritance diagram for de.zib.gndms.model.common.repository.QueuedDao< K, M, D >:

List of all members.

Public Member Functions
M	get (K key) throws NoSuchElementException
	Used to retrive an model object form the dao.
void	setLimit (int newLimit)
	Sets a new queue element limit.
int	getLimit ()
Protected Member Functions
abstract M	provideGet (K key)
	This should return new models or delegate calls to underlying daos.
void	offer (K key)
	Inserts key into the queue.
void	remove ()
Private Attributes
int	limit
Queue< K >	queue

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Detailed Description

Author:

try ma ik jo rr a zib

Version:

$Id$

Date: 05.01.2011, Time: 17:46:12

This isn't a real dao yet but offers the functionality to maintain domain objects in a queue.

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Member Function Documentation

M de.zib.gndms.model.common.repository.QueuedDao< K, M, D >.get

(

K

key

)

throws NoSuchElementException

Used to retrive an model object form the dao.

Parameters:

key	The key of the object.

Returns:

Implements de.zib.gndms.model.common.repository.Dao< K, M, D >.

                                                        {

        if( queue.size() == limit )
            queue.remove();

        offer( key );
        return provideGet( key );
    }

abstract M de.zib.gndms.model.common.repository.QueuedDao< K, M, D >.provideGet

(

K

key

)

[protected, pure virtual]

This should return new models or delegate calls to underlying daos.

Parameters:

key	Model key if required for construction.

Returns:

A new model.

Note: when this method is called the model is allready inserted into the queue.

Implemented in de.zib.gndms.model.common.repository.QueuedTransientDao< K, M, D >.

void de.zib.gndms.model.common.repository.QueuedDao< K, M, D >.setLimit

(

int

newLimit

)

Sets a new queue element limit.

Parameters:

newLimit

The new limit.

Note: if newLimit < limit, Items will be removed from the queue until the queue size is equal to the limit.

                                         {

        while( newLimit < queue.size() )
            remove( );

        this.limit = newLimit;
    }

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The documentation for this class was generated from the following file:

• model/src/de/zib/gndms/model/common/repository/QueuedDao.java