/*
* Licensed 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.facebook.presto.execution;
import com.facebook.presto.Session;
import com.facebook.presto.execution.StateMachine.StateChangeListener;
import com.facebook.presto.memory.VersionedMemoryPoolId;
import com.facebook.presto.spi.QueryId;
import com.facebook.presto.spi.resourceGroups.ResourceGroupId;
import com.facebook.presto.sql.tree.Expression;
import com.facebook.presto.sql.tree.Statement;
import io.airlift.units.Duration;
import java.util.List;
import java.util.Optional;
public interface QueryExecution
{
QueryId getQueryId();
QueryInfo getQueryInfo();
QueryState getState();
Optional<ResourceGroupId> getResourceGroup();
void setResourceGroup(ResourceGroupId resourceGroupId);
Duration waitForStateChange(QueryState currentState, Duration maxWait)
throws InterruptedException;
VersionedMemoryPoolId getMemoryPool();
void setMemoryPool(VersionedMemoryPoolId poolId);
long getTotalMemoryReservation();
Duration getTotalCpuTime();
Session getSession();
void start();
void fail(Throwable cause);
void cancelQuery();
void cancelStage(StageId stageId);
void recordHeartbeat();
// XXX: This should be removed when the client protocol is improved, so that we don't need to hold onto so much query history
void pruneInfo();
void addStateChangeListener(StateChangeListener<QueryState> stateChangeListener);
void addFinalQueryInfoListener(StateChangeListener<QueryInfo> stateChangeListener);
interface QueryExecutionFactory<T extends QueryExecution>
{
T createQueryExecution(QueryId queryId, String query, Session session, Statement statement, List<Expression> parameters);
}
}