svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.dal / org.gvsig.fmap.dal.api / src / main / java / org / gvsig / fmap / dal / resource / ResourceManager.java @ 40559
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 3
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.fmap.dal.resource; |
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import java.util.Iterator; |
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import org.gvsig.fmap.dal.exception.DataException; |
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import org.gvsig.fmap.dal.resource.exception.DisposeResorceManagerException; |
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import org.gvsig.tools.observer.Observer; |
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import org.gvsig.tools.observer.WeakReferencingObservable; |
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/**
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* This interface is the responsible of shared resources management.
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*
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* Allows getting a resource, iterating over the available resources, and
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* collecting resources to free them as they become unused
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*
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*/
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public interface ResourceManager extends WeakReferencingObservable { |
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public Resource getResource(String name); |
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/**
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* Returns an iterator over the available resources.
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*
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* @return
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* iterator over the resources.
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*/
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public Iterator iterator(); |
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/**
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* Iterates over the resources and frees them if they are ready to be freed
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* or try to close them if they are idle.
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*
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* @throws DataException
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* @see {@link ResourceManager#getTimeToBeIdle()}
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* {@link ResourceManager#setTimeToBeIdle(int)}
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*/
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public void collectResources() throws DataException; |
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/**
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* Returns the wait time to consider that a resource is idle in seconds.
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* Used in collect resouces action. <br>
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* if is lower than 1 never is idle.
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*
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* @return seconds
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*
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* @see {@link ResourceManager#collectResources()}
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* @see {@link ResourceManager#startResourceCollector(long, Observer)}
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*/
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public int getTimeToBeIdle(); |
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/**
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* Sets the wait time to consider that a resource is idle. Used in collect
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* resouces action. <br>
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* if is lower than 1 never is idle.
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*
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* @see {@link ResourceManager#collectResources()}
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* @see {@link ResourceManager#startResourceCollector(long, Observer)}
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*/
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public void setTimeToBeIdle(int seconds); |
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/**
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* Initializes the resource collection background process. Allows setting
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* of the delay between each execution of the collector and also an
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* observer to be notified on each execution.
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*
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* @param milis
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* delay between each execution of the resource collection process, in milliseconds.
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*
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* @param observer
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* an observer that will be notified on each execution of the resource collection process.
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*/
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public void startResourceCollector(long milis, Observer observer); |
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/**
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* Stops successive executions of the resource collector process. It does not interrupt
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* the process if it is currently running, but it will not be executed anymore times.
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*/
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public void stopResourceCollector(); |
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/**
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* Close all register resources.
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*
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* @throws DataException
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*/
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public void closeResources() throws DataException; |
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public void dispose() throws DisposeResorceManagerException; |
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} |