org.apache.calcite.linq4j.tree.package-info 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 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.
*/
/**
* Object model for Java expressions.
*
* This object model is used when the linq4j system is analyzing
* queries that have been submitted using methods on the
* {@link org.apache.calcite.linq4j.Queryable} interface. The system attempts
* to understand the intent of the query and reorganize it for
* efficiency; for example, it may attempt to push down filters to the
* source SQL system.
*/
package org.apache.calcite.linq4j.tree;