com.sun.gjc.util.SQLTrace Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of payara-embedded-web Show documentation
Show all versions of payara-embedded-web Show documentation
Embedded-Web Distribution of the Payara Project for IBM JDK
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package com.sun.gjc.util;
/**
* Store the sql queries executed by applications along with the number of
* times executed and the time stamp of the last usage.
* Used for monitoring information.
*
* @author Shalini M
*/
public class SQLTrace implements Comparable {
private String queryName;
private int numExecutions;
private long lastUsageTime;
public SQLTrace(String query, int numExecutions, long time) {
this.queryName = query;
this.numExecutions = numExecutions;
this.lastUsageTime = time;
}
/**
* Get the value of queryName
*
* @return the value of queryName
*/
public String getQueryName() {
return queryName;
}
/**
* Set the value of queryName
*
* @param queryName new value of queryName
*/
public void setQueryName(String queryName) {
this.queryName = queryName;
}
/**
* Get the value of numExecutions
*
* @return the value of numExecutions
*/
public int getNumExecutions() {
return numExecutions;
}
/**
* Set the value of numExecutions
*
* @param numExecutions new value of numExecutions
*/
public void setNumExecutions(int numExecutions) {
this.numExecutions = numExecutions;
}
/**
* Get the value of lastUsageTime
*
* @return the value of lastUsageTime
*/
public long getLastUsageTime() {
return lastUsageTime;
}
/**
* Set the value of lastUsageTime
*
* @param lastUsageTime new value of lastUsageTime
*/
public void setLastUsageTime(long lastUsageTime) {
this.lastUsageTime = lastUsageTime;
}
/**
* Check for equality of the SQLTrace with the object passed by
* comparing the queryName stored.
*
* @param obj against which the equality is to be checked.
* @return true or false
*/
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if(!(obj instanceof SQLTrace)) {
return false;
}
final SQLTrace other = (SQLTrace) obj;
if ((this.queryName == null) || (other.queryName == null) ||
!this.queryName.equals(other.queryName)) {
return false;
}
return true;
}
/**
* Generate hash code for this obejct using all the fields.
* @return
*/
@Override
public int hashCode() {
int hash = 7;
hash = 23 * hash + (this.queryName != null ? this.queryName.hashCode() : 0);
return hash;
}
@Override
public int compareTo(Object o) {
if (!(o instanceof SQLTrace)) {
throw new ClassCastException("SqlTraceCache object is expected");
}
int number = ((SQLTrace) o).numExecutions;
long t = ((SQLTrace) o).getLastUsageTime();
int compare = 0;
if (number == this.numExecutions) {
compare = 0;
} else if (number < this.numExecutions) {
compare = -1;
} else {
compare = 1;
}
if (compare == 0) {
//same number of executions. Hence compare based on time.
long timeCompare = this.getLastUsageTime() - t;
if(timeCompare == 0) {
compare = 0;
} else if(timeCompare < 0) {
//compare = -1;
compare = 1;
} else {
//compare = 1;
compare = -1;
}
}
return compare;
}
}