com.hazelcast.org.apache.calcite.sql.fun.OracleSqlOperatorTable Maven / Gradle / Ivy
/*
* 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 com.hazelcast.com.liance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.com.hazelcast.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 com.hazelcast.org.apache.calcite.sql.fun;
import com.hazelcast.org.apache.calcite.sql.SqlFunction;
import com.hazelcast.org.apache.calcite.sql.util.ReflectiveSqlOperatorTable;
/**
* Operator table that contains only Oracle-specific functions and operators.
*
* @deprecated Use
* {@link SqlLibraryOperatorTableFactory#getOperatorTable(SqlLibrary...)}
* instead, passing {@link SqlLibrary#ORACLE} as argument.
*/
@Deprecated // to be removed before 2.0
public class OracleSqlOperatorTable extends ReflectiveSqlOperatorTable {
//~ Static fields/initializers ---------------------------------------------
/**
* The table of contains Oracle-specific operators.
*/
private static OracleSqlOperatorTable instance;
@Deprecated // to be removed before 2.0
public static final SqlFunction DECODE = SqlLibraryOperators.DECODE;
@Deprecated // to be removed before 2.0
public static final SqlFunction NVL = SqlLibraryOperators.NVL;
@Deprecated // to be removed before 2.0
public static final SqlFunction LTRIM = SqlLibraryOperators.LTRIM;
@Deprecated // to be removed before 2.0
public static final SqlFunction RTRIM = SqlLibraryOperators.RTRIM;
@Deprecated // to be removed before 2.0
public static final SqlFunction SUBSTR = SqlLibraryOperators.SUBSTR;
@Deprecated // to be removed before 2.0
public static final SqlFunction GREATEST = SqlLibraryOperators.GREATEST;
@Deprecated // to be removed before 2.0
public static final SqlFunction LEAST = SqlLibraryOperators.LEAST;
@Deprecated // to be removed before 2.0
public static final SqlFunction TRANSLATE3 = SqlLibraryOperators.TRANSLATE3;
/**
* Returns the Oracle operator table, creating it if necessary.
*/
public static synchronized OracleSqlOperatorTable instance() {
if (instance == null) {
// Creates and initializes the standard operator table.
// Uses two-phase construction, because we can't initialize the
// table until the constructor of the sub-class has com.hazelcast.com.leted.
instance = new OracleSqlOperatorTable();
instance.init();
}
return instance;
}
}