/**
* Copyright (C) 2009-2013 FoundationDB, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.foundationdb.qp.rowtype;
import java.util.ArrayList;
import java.util.List;
import com.foundationdb.ais.model.HKey;
import com.foundationdb.ais.model.Table;
import com.foundationdb.server.explain.CompoundExplainer;
import com.foundationdb.server.explain.ExplainContext;
import com.foundationdb.server.explain.Label;
public class FlattenedRowType extends CompoundRowType
{
// Object interface
@Override
public String toString()
{
return String.format("flatten(%s, %s)", first(), second());
}
// RowType interface
@Override
public HKey hKey()
{
return second().hKey();
}
@Override
public CompoundExplainer getExplainer(ExplainContext context)
{
CompoundExplainer explainer = super.getExplainer(context);
explainer.addAttribute(Label.PARENT_TYPE, first().getExplainer(context));
explainer.addAttribute(Label.CHILD_TYPE, second().getExplainer(context));
return explainer;
}
// FlattenedRowType interface
public RowType parentType()
{
return first();
}
public RowType childType()
{
return second();
}
public FlattenedRowType(Schema schema, int typeId, RowType parent, RowType child)
{
super(schema, typeId, parent, child);
// re-replace the type composition with the single branch type
List<Table> parentAndChildTables = new ArrayList<>(parent.typeComposition().tables());
parentAndChildTables.addAll(child.typeComposition().tables());
typeComposition(new SingleBranchTypeComposition(this, parentAndChildTables));
}
}