/*
* Copyright 2004-2023 H2 Group. Multiple-Licensed under the MPL 2.0,
* and the EPL 1.0 (https://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.table;
import org.h2.engine.SessionLocal;
import org.h2.index.Index;
import org.h2.index.VirtualConstructedTableIndex;
import org.h2.result.ResultInterface;
import org.h2.schema.Schema;
/**
* A base class for virtual tables that construct all their content at once.
*/
public abstract class VirtualConstructedTable extends VirtualTable {
protected VirtualConstructedTable(Schema schema, int id, String name) {
super(schema, id, name);
}
/**
* Read the rows from the table.
*
* @param session
* the session
* @return the result
*/
public abstract ResultInterface getResult(SessionLocal session);
@Override
public Index getScanIndex(SessionLocal session) {
return new VirtualConstructedTableIndex(this, IndexColumn.wrap(columns));
}
@Override
public long getMaxDataModificationId() {
// TODO optimization: virtual table currently doesn't know the
// last modified date
return Long.MAX_VALUE;
}
}