buildframework/helium/sf/java/metadata/src/com/nokia/helium/metadata/model/metadata/SysdefPackageDAO.java
/*
* Copyright (c) 2007-2008 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/
package com.nokia.helium.metadata.model.metadata;
import java.util.Hashtable;
import java.util.Map;
import javax.persistence.NoResultException;
import javax.persistence.TypedQuery;
import com.nokia.helium.metadata.JpaDAO;
/**
* Implements DAO for the Package.
* Contains all helpers related to Package manipulation.
*
*/
public class SysdefPackageDAO extends JpaDAO<SysdefPackage> {
/**
* Get a map of packages rows based on the package name.
* @return a map of (pkgname, Package).
*/
public Map<String, SysdefPackage> getPackages() {
Map<String, SysdefPackage> result = new Hashtable<String, SysdefPackage>();
for (SysdefPackage pkg : this.getEntityManager().createQuery("SELECT p from SysdefPackage p", SysdefPackage.class).getResultList()) {
result.put(pkg.getPackageId(), pkg);
}
return result;
}
/**
* Get an package based on its model Id.
* @param id
* @return the entity representing the package of null if not found.
*/
public SysdefPackage getPackageById(String id) {
TypedQuery<SysdefPackage> query = this.getEntityManager().createQuery("SELECT p from SysdefPackage p where p.packageId=?1", SysdefPackage.class);
query.setParameter(1, id);
try {
return query.getSingleResult();
} catch (NoResultException ex) {
return null;
}
}
}