+
−/*
+
− * This Source Code Form is subject to the terms of the Mozilla Public
+
− * License, v. 2.0.  If a copy of the MPL was not distributed with this
+
− * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
− *
+
− * Copyright 2016 MonetDB B.V.
+
− */
+
−
+
−package nl.cwi.monetdb.embedded;
+
−
+
−import java.io.Closeable;
+
−
+
−/**
+
− * The base class for a query result.
+
− *
+
− * @author <a href="mailto:pedro.ferreira@monetdbsolutions.com">Pedro Ferreira</a>
+
− */
+
−public abstract class AbstractStatementResult implements Closeable {
+
−
+
−    /**
+
−     * The corresponding connection of this result.
+
−     */
+
−    private final MonetDBEmbeddedConnection connection;
+
−
+
−    protected AbstractStatementResult(MonetDBEmbeddedConnection connection) {
+
−        this.connection = connection;
+
−    }
+
−
+
−    /**
+
−     * Get the corresponding connection to this statement result.
+
−     *
+
−     * @return A MonetDBEmbeddedConnection instance
+
−     */
+
−    public MonetDBEmbeddedConnection getConnection() { return connection; }
+
−
+
−    /**
+
−     * To be called by the connection when is closing, to avoid concurrency problems on the iteration.
+
−     */
+
−    protected abstract void closeImplementation();
+
−
+
−    @Override
+
−    public void close() {
+
−        this.closeImplementation();
+
−        this.connection.removeQueryResult(this);
+
−    }
+
−}