org.apache.calcite.model.package-info Maven / Gradle / Ivy
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/*
* 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.
*/
/**
* Provides model files, in JSON format, defining schemas and other metadata.
*
* Models are specified using a model=<uri> parameter on
* the JDBC connect string. Calcite loads the model while initializing the
* connection. It first parses the JSON, then uses a
* {@link org.apache.calcite.model.ModelHandler} as visitor over the parse
* tree.
*
* There are standard implementations of schema and table, but the user can
* provide their own by implementing the
* {@link org.apache.calcite.schema.SchemaFactory}
* or {@link org.apache.calcite.schema.TableFactory}
* interfaces and including a custom schema in the model.
*
* There are several examples of schemas in the
* tutorial.
*/
@PackageMarker
package org.apache.calcite.model;
import org.apache.calcite.avatica.util.PackageMarker;
// End package-info.java