/**
* 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 com.foundationdb.ais.model.HKey;
import com.foundationdb.ais.model.Index;
import com.foundationdb.ais.model.Table;
import com.foundationdb.ais.model.TableName;
import com.foundationdb.server.explain.*;
import com.foundationdb.server.types.TInstance;
import com.foundationdb.util.FilteringIterator;
import java.util.ArrayList;
import java.util.Iterator;
public class TableRowType extends AisRowType
{
// Object interface
@Override
public String toString()
{
return table.toString();
}
// RowType interface
@Override
public int nFields()
{
return table.getColumnsIncludingInternal().size();
}
@Override
public HKey hKey()
{
return table.hKey();
}
@Override
public TInstance typeAt(int index) {
return table.getColumnsIncludingInternal().get(index).getType();
}
@Override
public CompoundExplainer getExplainer(ExplainContext context)
{
CompoundExplainer explainer = super.getExplainer(context);
TableName tableName = table.getName();
explainer.addAttribute(Label.TABLE_SCHEMA, PrimitiveExplainer.getInstance(tableName.getSchemaName()));
explainer.addAttribute(Label.TABLE_NAME, PrimitiveExplainer.getInstance(tableName.getTableName()));
return explainer;
}
// TableRowType interface
@Override
public Table table()
{
return table;
}
@Override
public boolean hasTable() {
return table != null;
}
public IndexRowType indexRowType(Index index)
{
return indexRowType(index.getIndexId());
}
public IndexRowType indexRowType(int indexID)
{
return indexRowTypes.get(indexID);
}
public void addIndexRowType(IndexRowType indexRowType)
{
Index index = indexRowType.index();
int requiredEntries = index.getIndexId() + 1;
while (indexRowTypes.size() < requiredEntries) {
indexRowTypes.add(null);
}
indexRowTypes.set(index.getIndexId(), indexRowType);
}
public Iterable<IndexRowType> indexRowTypes() {
return new Iterable<IndexRowType>() {
@Override
public Iterator<IndexRowType> iterator() {
return new FilteringIterator<IndexRowType>(indexRowTypes.iterator(), false) {
@Override
protected boolean allow(IndexRowType item) {
return item != null;
}
};
}
};
}
public TableRowType(Schema schema, Table table)
{
super(schema, table.getTableId());
this.table = table;
typeComposition(new SingleBranchTypeComposition(this, table));
}
// Object state
private final Table table;
// Type of indexRowTypes is ArrayList, not List, to make it clear that null values are permitted.
private final ArrayList<IndexRowType> indexRowTypes = new ArrayList<>();
}