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/*
* Copyright (c) 2004 - 2012 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.net4j.internal.db.ddl.delta;
import org.eclipse.net4j.db.ddl.IDBField;
import org.eclipse.net4j.db.ddl.IDBIndex;
import org.eclipse.net4j.db.ddl.IDBSchema;
import org.eclipse.net4j.db.ddl.delta.IDBDelta;
import org.eclipse.net4j.db.ddl.delta.IDBDeltaVisitor;
import org.eclipse.net4j.db.ddl.delta.IDBFieldDelta;
import org.eclipse.net4j.db.ddl.delta.IDBIndexDelta;
import org.eclipse.net4j.db.ddl.delta.IDBTableDelta;
import org.eclipse.net4j.internal.db.ddl.DBField;
import org.eclipse.net4j.internal.db.ddl.DBIndex;
import org.eclipse.net4j.internal.db.ddl.DBTable;
import java.text.MessageFormat;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* @author Eike Stepper
*/
public final class DBTableDelta extends DBDelta implements IDBTableDelta
{
private static final long serialVersionUID = 1L;
private Map<String, IDBFieldDelta> fieldDeltas = new HashMap<String, IDBFieldDelta>();
private Map<String, IDBIndexDelta> indexDeltas = new HashMap<String, IDBIndexDelta>();
public DBTableDelta(DBDelta parent, String name, ChangeKind changeKind)
{
super(parent, name, changeKind);
}
public DBTableDelta(DBSchemaDelta parent, DBTable table, DBTable oldTable)
{
this(parent, getName(table, oldTable), getChangeKind(table, oldTable));
IDBField[] fields = table == null ? DBTable.NO_FIELDS : table.getFields();
IDBField[] oldFields = oldTable == null ? DBTable.NO_FIELDS : oldTable.getFields();
compare(fields, oldFields, new SchemaElementComparator<IDBField>()
{
public void compare(IDBField field, IDBField oldField)
{
DBFieldDelta fieldDelta = new DBFieldDelta(DBTableDelta.this, (DBField)field, (DBField)oldField);
if (!fieldDelta.isEmpty())
{
addFieldDelta(fieldDelta);
}
}
});
IDBIndex[] indices = table.getIndices();
IDBIndex[] oldIndices = oldTable == null ? DBTable.NO_INDICES : oldTable.getIndices();
compare(indices, oldIndices, new SchemaElementComparator<IDBIndex>()
{
public void compare(IDBIndex index, IDBIndex oldIndex)
{
DBIndexDelta indexDelta = new DBIndexDelta(DBTableDelta.this, (DBIndex)index, (DBIndex)oldIndex);
if (!indexDelta.isEmpty())
{
addIndexDelta(indexDelta);
}
}
});
}
/**
* Constructor for deserialization.
*/
protected DBTableDelta()
{
}
public DeltaType getDeltaType()
{
return DeltaType.TABLE;
}
@Override
public DBSchemaDelta getParent()
{
return (DBSchemaDelta)super.getParent();
}
public int getFieldDeltaCount()
{
return fieldDeltas.size();
}
public int getIndexDeltaCount()
{
return indexDeltas.size();
}
public DBFieldDelta getFieldDelta(int position)
{
for (IDBFieldDelta fieldDelta : fieldDeltas.values())
{
if (fieldDelta.getPosition() == position)
{
return (DBFieldDelta)fieldDelta;
}
}
return null;
}
public DBFieldDelta getFieldDelta(String name)
{
return (DBFieldDelta)fieldDeltas.get(name);
}
public DBIndexDelta getIndexDelta(String name)
{
return (DBIndexDelta)indexDeltas.get(name);
}
public Map<String, IDBFieldDelta> getFieldDeltas()
{
return Collections.unmodifiableMap(fieldDeltas);
}
public Map<String, IDBIndexDelta> getIndexDeltas()
{
return Collections.unmodifiableMap(indexDeltas);
}
public DBFieldDelta[] getFieldDeltasSortedByPosition()
{
DBFieldDelta[] result = fieldDeltas.values().toArray(new DBFieldDelta[fieldDeltas.size()]);
Arrays.sort(result);
return result;
}
public DBIndexDelta[] getIndexDeltasSortedByName()
{
DBIndexDelta[] result = indexDeltas.values().toArray(new DBIndexDelta[indexDeltas.size()]);
Arrays.sort(result);
return result;
}
public DBTable getSchemaElement(IDBSchema schema)
{
return (DBTable)schema.getTable(getName());
}
@Override
public String toString()
{
return MessageFormat.format("DBTableDelta[name={0}, kind={1}, fieldDeltas={2}, indexDeltas={3}]", getName(),
getChangeKind(), fieldDeltas.values(), indexDeltas.values());
}
public void addFieldDelta(IDBFieldDelta fieldDelta)
{
fieldDeltas.put(fieldDelta.getName(), fieldDelta);
resetElements();
}
public void addIndexDelta(IDBIndexDelta indexDelta)
{
indexDeltas.put(indexDelta.getName(), indexDelta);
resetElements();
}
@Override
protected void doAccept(IDBDeltaVisitor visitor)
{
visitor.visit(this);
}
@Override
protected void collectElements(List<IDBDelta> elements)
{
elements.addAll(fieldDeltas.values());
elements.addAll(indexDeltas.values());
}
}
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