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*
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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package com.sun.tools.visualvm.tools.sa;
import com.sun.tools.visualvm.core.datasource.DataSource;
import com.sun.tools.visualvm.core.model.ModelFactory;
/**
* The SaModelFactory class is a factory class for getting the
* {@link SaModel} representation for the {@link DataSource}.
*
* @author Tomas Hurka
*/
public final class SaModelFactory extends ModelFactory<SaModel, DataSource> {
private static SaModelFactory saAgentFactory;
private SaModelFactory() {
}
/**
* Getter for the default version of the SaModelFactory.
* @return instance of {@link SaModelFactory}.
*/
public static synchronized SaModelFactory getDefault() {
if (saAgentFactory == null) {
saAgentFactory = new SaModelFactory();
}
return saAgentFactory;
}
/**
* Factory method for obtaining {@link SaModel} for {@link DataSource}.
* Note that there is only one instance of {@link SaModel} for a concrete
* data source. This {@link SaModel} instance is cached. This method can
* return <CODE>null</CODE> if there is no AttachModel available
* @param app application
* @return {@link SaModel} instance or <CODE>null</CODE> if there is no
* {@link SaModel}
*/
public static SaModel getSAAgentFor(DataSource app) {
return getDefault().getModel(app);
}
}