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/*-
* See the file LICENSE for redistribution information.
*
* Copyright (c) 1997-2002
* Sleepycat Software. All rights reserved.
*
* $Id: TestTruncate.java,v 1.1.1.1 2003/11/20 22:14:06 toshok Exp $
*/
/*
* Simple test for get/put of specific values.
*/
package com.sleepycat.test;
import com.sleepycat.db.*;
import java.io.FileNotFoundException;
public class TestTruncate
{
public static void main(String[] args)
{
try {
Db db = new Db(null, 0);
db.open(null, "my.db", null, Db.DB_BTREE, Db.DB_CREATE, 0644);
// populate our massive database.
Dbt keydbt = new Dbt("key".getBytes());
Dbt datadbt = new Dbt("data".getBytes());
db.put(null, keydbt, datadbt, 0);
// Now, retrieve. We could use keydbt over again,
// but that wouldn't be typical in an application.
Dbt goodkeydbt = new Dbt("key".getBytes());
Dbt badkeydbt = new Dbt("badkey".getBytes());
Dbt resultdbt = new Dbt();
resultdbt.set_flags(Db.DB_DBT_MALLOC);
int ret;
if ((ret = db.get(null, goodkeydbt, resultdbt, 0)) != 0) {
System.out.println("get: " + DbEnv.strerror(ret));
}
else {
String result =
new String(resultdbt.get_data(), 0, resultdbt.get_size());
System.out.println("got data: " + result);
}
if ((ret = db.get(null, badkeydbt, resultdbt, 0)) != 0) {
// We expect this...
System.out.println("get using bad key: " + DbEnv.strerror(ret));
}
else {
String result =
new String(resultdbt.get_data(), 0, resultdbt.get_size());
System.out.println("*** got data using bad key!!: " + result);
}
// Now, truncate and make sure that it's really gone.
System.out.println("truncating data...");
int nrecords = db.truncate(null, 0);
System.out.println("truncate returns " + nrecords);
if ((ret = db.get(null, goodkeydbt, resultdbt, 0)) != 0) {
// We expect this...
System.out.println("after trunctate get: " +
DbEnv.strerror(ret));
}
else {
String result =
new String(resultdbt.get_data(), 0, resultdbt.get_size());
System.out.println("got data: " + result);
}
db.close(0);
System.out.println("finished test");
}
catch (DbException dbe) {
System.err.println("Db Exception: " + dbe);
}
catch (FileNotFoundException fnfe) {
System.err.println("FileNotFoundException: " + fnfe);
}
}
}
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