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/**
* Copyright (c) 2004 - 2011 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
* Stefan Winkler - 271444: [DB] Multiple refactorings
* Stefan Winkler - 249610: [DB] Support external references (Implementation)
*/
package org.eclipse.emf.cdo.server.db;
import org.eclipse.emf.cdo.server.db.mapping.IMappingStrategy;
import org.eclipse.emf.cdo.server.internal.db.DBBrowserPage;
import org.eclipse.emf.cdo.server.internal.db.DBStore;
import org.eclipse.emf.cdo.server.internal.db.SmartPreparedStatementCache;
import org.eclipse.emf.cdo.server.internal.db.bundle.OM;
import org.eclipse.emf.cdo.server.internal.db.mapping.horizontal.HorizontalAuditMappingStrategy;
import org.eclipse.emf.cdo.server.internal.db.mapping.horizontal.HorizontalBranchingMappingStrategy;
import org.eclipse.emf.cdo.server.internal.db.mapping.horizontal.HorizontalNonAuditMappingStrategy;
import org.eclipse.net4j.db.IDBAdapter;
import org.eclipse.net4j.db.IDBConnectionProvider;
import org.eclipse.net4j.util.ObjectUtil;
import org.eclipse.net4j.util.WrappedException;
import org.eclipse.net4j.util.container.IManagedContainer;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtensionRegistry;
import org.eclipse.core.runtime.Platform;
/**
* @author Eike Stepper
*/
public final class CDODBUtil
{
/**
* @since 2.0
*/
public static final int DEFAULT_STATEMENT_CACHE_CAPACITY = 200;
/**
* @since 2.0
*/
public static final String EXT_POINT_MAPPING_STRATEGIES = "mappingStrategies"; //$NON-NLS-1$
/**
* @since 4.1
*/
public static final String PROP_ZEROBASED_INDEX = "forceZeroBasedIndex";
private CDODBUtil()
{
}
/**
* @since 4.0
*/
public static void prepareContainer(IManagedContainer container)
{
container.registerFactory(new DBBrowserPage.Factory());
}
/**
* @since 2.0
*/
public static IDBStore createStore(IMappingStrategy mappingStrategy, IDBAdapter dbAdapter,
IDBConnectionProvider dbConnectionProvider)
{
DBStore store = new DBStore();
store.setMappingStrategy(mappingStrategy);
store.setDBAdapter(dbAdapter);
store.setDbConnectionProvider(dbConnectionProvider);
return store;
}
/**
* @since 2.0
*/
public static IMappingStrategy createHorizontalMappingStrategy(boolean auditing)
{
if (auditing)
{
return new HorizontalAuditMappingStrategy();
}
return new HorizontalNonAuditMappingStrategy();
}
/**
* @since 3.0
*/
public static IMappingStrategy createHorizontalMappingStrategy(boolean auditing, boolean branching)
{
if (branching)
{
if (auditing)
{
return new HorizontalBranchingMappingStrategy();
}
throw new IllegalArgumentException("Misconfiguration: Branching requires Auditing!");
}
return createHorizontalMappingStrategy(auditing);
}
/**
* Can only be used when Eclipse is running. In standalone scenarios create the mapping strategy instance by directly
* calling the constructor of the mapping strategy class.
*
* @see #createHorizontalMappingStrategy(boolean)
* @see #createHorizontalMappingStrategy(boolean, boolean)
* @since 2.0
*/
public static IMappingStrategy createMappingStrategy(String type)
{
IExtensionRegistry registry = Platform.getExtensionRegistry();
IConfigurationElement[] elements = registry.getConfigurationElementsFor(OM.BUNDLE_ID, EXT_POINT_MAPPING_STRATEGIES);
for (final IConfigurationElement element : elements)
{
if ("mappingStrategy".equals(element.getName())) //$NON-NLS-1$
{
String typeAttr = element.getAttribute("type"); //$NON-NLS-1$
if (ObjectUtil.equals(typeAttr, type))
{
try
{
return (IMappingStrategy)element.createExecutableExtension("class"); //$NON-NLS-1$
}
catch (CoreException ex)
{
throw WrappedException.wrap(ex);
}
}
}
}
return null;
}
/**
* Creates a prepared statement cache with the {@link CDODBUtil#DEFAULT_STATEMENT_CACHE_CAPACITY default capacity}.
*
* @since 2.0
* @see CDODBUtil#createStatementCache(int)
*/
public static IPreparedStatementCache createStatementCache()
{
return createStatementCache(DEFAULT_STATEMENT_CACHE_CAPACITY);
}
/**
* Creates a prepared statement cache with the given capacity.
*
* @since 2.0
*/
public static IPreparedStatementCache createStatementCache(int capacity)
{
return new SmartPreparedStatementCache(capacity);
}
}
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