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/*
* Copyright (c) 2004-2013 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
*/
package org.eclipse.emf.cdo.server.db.mapping;
import org.eclipse.emf.cdo.server.db.mapping.ITypeMapping.Provider;
import org.eclipse.net4j.db.DBType;
import org.eclipse.net4j.util.factory.ProductCreationException;
import org.eclipse.emf.ecore.EStructuralFeature;
/**
* Can modify the column type of a {@link ITypeMapping type mapping} that is created by the {@link ITypeMapping.Registry type mapping registry}.
*
* @author Eike Stepper
* @since 4.2
*/
public abstract class ColumnTypeModifier
{
public static final ColumnTypeModifier NOOP = new ColumnTypeModifier()
{
@Override
public DBType modify(Provider provider, IMappingStrategy mappingStrategy, EStructuralFeature feature, DBType dbType)
{
return dbType;
}
};
public ColumnTypeModifier()
{
}
/**
* Can modify the column type of a {@link ITypeMapping type mapping} that is created by the {@link ITypeMapping.Registry type mapping registry}.
*/
public abstract DBType modify(ITypeMapping.Provider provider, IMappingStrategy mappingStrategy,
EStructuralFeature feature, DBType dbType);
/**
* Creates {@link ColumnTypeModifier} instances.
*
* @author Eike Stepper
*/
public static abstract class Factory extends org.eclipse.net4j.util.factory.Factory
{
/**
* The Net4j factory product group for column type modifiers.
*/
public static final String PRODUCT_GROUP = "org.eclipse.emf.cdo.server.db.columnTypeModifiers";
public Factory(String type)
{
super(PRODUCT_GROUP, type);
}
public abstract ColumnTypeModifier create(String description) throws ProductCreationException;
}
}
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