io.pivotal.arca.provider.SQLiteView Maven / Gradle / Ivy

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/* 
 * Copyright (C) 2014 Pivotal Software, Inc. 
 * 
 * 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.pivotal.arca.provider;

import android.content.ContentValues;
import android.database.sqlite.SQLiteDatabase;
import android.net.Uri;

public abstract class SQLiteView extends SQLiteDataset {

	@Override
	public void onCreate(final SQLiteDatabase db) {
		final String select = DatasetUtils.getSelect(this);
		final String create = String.format("CREATE VIEW IF NOT EXISTS %s AS %s;", getName(), select);
		db.execSQL(create);
	}

	@Override
	public void onDrop(final SQLiteDatabase db) {
		final String drop = String.format("DROP VIEW IF EXISTS %s;", getName());
		db.execSQL(drop);
	}

	@Override
	public int delete(final Uri uri, final String selection, final String[] selectionArgs) {
		throw new UnsupportedOperationException("A SQLiteView does not support delete operations.");
	}

	@Override
	public int update(final Uri uri, final ContentValues values, final String selection, final String[] selectionArgs) {
		throw new UnsupportedOperationException("A SQLiteView does not support update operations.");
	}

	@Override
	public int bulkInsert(final Uri uri, final ContentValues[] values) {
		throw new UnsupportedOperationException("A SQLiteView does not support bulk insert operations.");
	}

	@Override
	public Uri insert(final Uri uri, final ContentValues values) {
		throw new UnsupportedOperationException("A SQLiteView does not support insert operations.");
	}

}