com.hazelcast.org.apache.calcite.adapter.java.JavaTypeFactory 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.
*/
package com.hazelcast.org.apache.calcite.adapter.java;
import com.hazelcast.org.apache.calcite.rel.type.RelDataType;
import com.hazelcast.org.apache.calcite.rel.type.RelDataTypeFactory;
import java.lang.reflect.Type;
import java.util.List;
/**
* Type factory that can register Java classes as record types.
*/
public interface JavaTypeFactory extends RelDataTypeFactory {
/**
* Creates a record type based upon the public fields of a Java class.
*
* @param clazz Java class
* @return Record type that remembers its Java class
*/
RelDataType createStructType(Class clazz);
/**
* Creates a type, deducing whether a record, scalar or primitive type
* is needed.
*
* @param type Java type, such as a {@link Class}
* @return Record or scalar type
*/
RelDataType createType(Type type);
Type getJavaClass(RelDataType type);
/** Creates a synthetic Java class whose fields have the given Java
* types. */
Type createSyntheticType(List types);
/** Converts a type in Java format to a SQL-oriented type. */
RelDataType toSql(RelDataType type);
}