FeatureAppendCursor.java

/* Copyright 2015 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.vector;

import java.io.IOException;

/**
 * Extension of {@link FeatureWriteCursor} for appending. Such a cursor doesn't support remove.
 * <p>
 *   Usage:
 *   <pre>
 *       FeatureCursor c = data.append();
 *       MutableFeature f = c.next();
 *       f.put("foo", "bar");
 *       c.write();
 *       c.close();
 *   </pre>
 * </p>
 *
 */
public abstract class FeatureAppendCursor extends FeatureWriteCursor {

    @Override
    public boolean hasNext() throws IOException {
        return true;
    }

    @Override
    public final FeatureAppendCursor remove() throws IOException {
        throw new UnsupportedOperationException("Remove not supported for append cursor");
    }
}