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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.
*/
package org.apache.flink.table.api.internal;
import org.apache.flink.annotation.Experimental;
import org.apache.flink.annotation.Internal;
import org.apache.flink.table.api.CompiledPlan;
import org.apache.flink.table.api.ExplainDetail;
import org.apache.flink.table.api.ExplainFormat;
import org.apache.flink.table.api.Table;
import org.apache.flink.table.api.TableEnvironment;
import org.apache.flink.table.catalog.CatalogManager;
import org.apache.flink.table.delegation.InternalPlan;
import org.apache.flink.table.delegation.Parser;
import org.apache.flink.table.operations.ModifyOperation;
import org.apache.flink.table.operations.Operation;
import org.apache.flink.table.operations.QueryOperation;
import org.apache.flink.table.operations.utils.OperationTreeBuilder;
import org.apache.flink.table.sinks.TableSink;
import org.apache.flink.table.sources.TableSource;
import java.util.List;
/**
* An internal interface of {@link TableEnvironment} that defines extended methods used for {@link
* TableImpl}.
*
* Once old planner is removed, this class also can be removed. By then, these methods can be
* moved into TableEnvironmentImpl.
*/
@Internal
public interface TableEnvironmentInternal extends TableEnvironment {
/**
* Return a {@link Parser} that provides methods for parsing a SQL string.
*
* @return initialized {@link Parser}.
*/
Parser getParser();
/** Returns a {@link CatalogManager} that deals with all catalog objects. */
CatalogManager getCatalogManager();
/** Returns a {@link OperationTreeBuilder} that can create {@link QueryOperation}s. */
OperationTreeBuilder getOperationTreeBuilder();
/**
* Creates a table from a table source.
*
* @param source table source used as table
*/
@Deprecated
Table fromTableSource(TableSource source);
/**
* Execute the given modify operations and return the execution result.
*
* @param operations The operations to be executed.
* @return the affected row counts (-1 means unknown).
*/
TableResultInternal executeInternal(List operations);
/**
* Execute the given operation and return the execution result.
*
* @param operation The operation to be executed.
* @return the content of the execution result.
*/
TableResultInternal executeInternal(Operation operation);
/**
* Returns the AST of this table and the execution plan to compute the result of this table.
*
* @param operations The operations to be explained.
* @param extraDetails The extra explain details which the explain result should include, e.g.
* estimated cost, changelog mode for streaming
* @return AST and the execution plan.
*/
default String explainInternal(List operations, ExplainDetail... extraDetails) {
return explainInternal(operations, ExplainFormat.TEXT, extraDetails);
}
/**
* Returns the AST of this table and the execution plan to compute the result of this table.
*
* @param operations The operations to be explained.
* @param format The output format.
* @param extraDetails The extra explain details which the explain result should include, e.g.
* estimated cost, changelog mode for streaming
* @return AST and the execution plan.
*/
String explainInternal(
List operations, ExplainFormat format, ExplainDetail... extraDetails);
/**
* Registers an external {@link TableSource} in this {@link TableEnvironment}'s catalog.
* Registered tables can be referenced in SQL queries.
*
* Temporary objects can shadow permanent ones. If a permanent object in a given path exists,
* it will be inaccessible in the current session. To make the permanent object available again
* one can drop the corresponding temporary object.
*
* @param name The name under which the {@link TableSource} is registered.
* @param tableSource The {@link TableSource} to register.
*/
void registerTableSourceInternal(String name, TableSource tableSource);
/**
* Registers an external {@link TableSink} with already configured field names and field types
* in this {@link TableEnvironment}'s catalog. Registered sink tables can be referenced in SQL
* DML statements.
*
*
Temporary objects can shadow permanent ones. If a permanent object in a given path exists,
* it will be inaccessible in the current session. To make the permanent object available again
* one can drop the corresponding temporary object.
*
* @param name The name under which the {@link TableSink} is registered.
* @param configuredSink The configured {@link TableSink} to register.
*/
void registerTableSinkInternal(String name, TableSink configuredSink);
@Experimental
CompiledPlan compilePlan(List operations);
@Experimental
TableResultInternal executePlan(InternalPlan plan);
@Experimental
String explainPlan(InternalPlan compiledPlan, ExplainDetail... extraDetails);
}