com.hazelcast.shaded.org.apache.calcite.schema.QueryableTable 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,
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* See the License for the specific language governing permissions and
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package com.hazelcast.shaded.org.apache.calcite.schema;
import com.hazelcast.shaded.org.apache.calcite.linq4j.QueryProvider;
import com.hazelcast.shaded.org.apache.calcite.linq4j.Queryable;
import com.hazelcast.shaded.org.apache.calcite.linq4j.tree.Expression;
import java.lang.reflect.Type;
/**
* Extension to {@link Table} that can translate itself to a {@link Queryable}.
*/
public interface QueryableTable extends Table {
/** Converts this table into a {@link Queryable}. */
Queryable asQueryable(QueryProvider queryProvider, SchemaPlus schema,
String tableName);
/** Returns the element type of the collection that will implement this
* table. */
Type getElementType();
/** Generates an expression with which this table can be referenced in
* generated code.
*
* @param schema Schema
* @param tableName Table name (unique within schema)
* @param clazz The desired collection class; for example {@code Queryable}.
*/
Expression getExpression(SchemaPlus schema, String tableName, Class clazz);
}
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