asterixdb-jdbc/asterix-jdbc-core/src/main/java/org/apache/asterix/jdbc/core/ADBWrapperSupport.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.asterix.jdbc.core;

import java.sql.SQLException;
import java.sql.Wrapper;

public abstract class ADBWrapperSupport implements Wrapper {

    @Override
    public final boolean isWrapperFor(Class<?> iface) {
        return iface.isInstance(this);
    }

    @Override
    public final <T> T unwrap(Class<T> iface) throws SQLException {
        if (!iface.isInstance(this)) {
            throw getErrorReporter().errorUnwrapTypeMismatch(iface);
        }
        return iface.cast(this);
    }

    protected abstract ADBErrorReporter getErrorReporter();
}