/* Copyright 2013 The jeo project. All rights reserved. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package io.jeo.geopkg; import java.io.IOException; import io.jeo.data.Transaction; import io.jeo.vector.Feature; import io.jeo.vector.FeatureAppendCursor; import io.jeo.vector.ListFeature; import io.jeo.vector.Schema; import io.jeo.sql.Backend.Session; public class GeoPkgFeatureAppendCursor extends FeatureAppendCursor { Session session; Transaction tx; FeatureEntry entry; GeoPkgWorkspace ws; Schema schema; Feature next; GeoPkgFeatureAppendCursor(Session session, Transaction tx, FeatureEntry entry, Schema schema, GeoPkgWorkspace ws) throws IOException { this.session = session; this.tx = tx; this.entry = entry; this.ws = ws; this.schema = schema; if (tx == Transaction.NULL) { // without a transaction, performance is miserable session.beginTransaction(); } } @Override public Feature next() throws IOException { return next = new ListFeature(schema); } @Override public GeoPkgFeatureAppendCursor write() throws IOException { ws.insert(entry, next, session); return this; } @Override public void close() throws IOException { if (session != null) { // if not using an "outer" transaction, close the one we created if (tx == Transaction.NULL) { session.endTransaction(true); session.close(); } session = null; } } }