org.apache.openjpa.instrumentation.PreparedQueryCacheInstrument 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 org.apache.openjpa.instrumentation;
import java.util.Date;
import java.util.Set;
public interface PreparedQueryCacheInstrument {
/**
* Returns number of total exec requests since start.
*/
long getTotalExecutionCount();
/**
* Returns number of total exec requests since start.
*/
long getTotalExecutionCount(String query);
/**
* Returns number of total execution requests since last reset
*/
long getExecutionCount();
/**
* Returns number of total execution requests since last reset
*/
long getExecutionCount(String query);
/**
* Returns number of total read requests that have been found in cache since
* last reset.
*/
long getHitCount();
/**
* Returns number of total read requests that have been found in cache since
* last reset.
*/
long getHitCount(String query);
/**
* Returns number of total read requests that has been found since start.
*/
long getTotalHitCount();
/**
* Returns number of total read requests that has been found since start.
*/
long getTotalHitCount(String query);
/**
* Resets cache statistics
*/
void reset();
/**
* Returns date since cache statistics collection were last reset.
*/
Date sinceDate();
/**
* Returns date cache statistics collection started.
*/
Date startDate();
/**
* Returns all queries currently tracked in the cache.
*/
Set queries();
}