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Java Source Code / Java Documentation » Database ORM » db ojb » org.apache.ojb.compare

Source Cross Reference Class Diagram Java Document (Java Doc)

org.apache.ojb.junit .PBTestCase

org.apache.ojb.compare .PerformanceBaseTest

All known Subclasses:   org.apache.ojb.compare .PerformancePBTest,  org.apache.ojb.compare .PerformanceODMGTest,  org.apache.ojb.compare .PerformanceJdbcTest,  org.apache.ojb.compare .PerformanceOTMTest,
PerformanceBaseTest
abstract class PerformanceBaseTest extends PBTestCase (Code)
This is the base class for single-threaded performance benchmarks.
author:
   Thomas Mahler

Field Summary
protected PerformanceArticle[] arr

protected static int articleCount
     the number of PerformanceArticle objects to work with.
protected static int iterations
     the number of iterations to perform.
protected Logger logger

final protected static int offsetId


Constructor Summary
public PerformanceBaseTest(String name)
     BrokerTests constructor comment.

Method Summary
protected void clearTable()

protected PerformanceArticle createArticle(int id)
     factory method that createa an PerformanceArticle with a given id.
abstract protected void deleteArticles()
     deletes all PerformanceArticle created by insertNewArticles.
protected Connection getConnection()
     obtain a JDBC Connection.
abstract protected void insertNewArticles()
     create new PerformanceArticle objects and insert them into the RDBMS.
abstract protected void readArticles()
     read in all the PerformanceArticles from the RDBMS that have been inserted by insertNewArticles().
abstract protected void readArticlesByCursor()
     read in all the PerformanceArticles from the RDBMS that have been inserted by insertNewArticles().
protected void returnConnection(Connection conn)

public void setNameOfTest(String nameOfTest)
     Set the name of the test.
public void setUp()
     setting up the test fixture.
public void shutdown()

public void tearDown()
     tearing down the test fixture.
public void testBenchmark()
     This method is the driver for the complete Benchmark. It performs the following steps:
1.) n objects are created and inserted to the RDBMS. 2.) the created objects are modified.
abstract protected void updateExistingArticles()
     updates all PerformanceArticles inserted by insertNewArticles().

Field Detail
arr
protected PerformanceArticle[] arr(Code)

articleCount
protected static int articleCount(Code)
the number of PerformanceArticle objects to work with.

iterations
protected static int iterations(Code)
the number of iterations to perform.

logger
protected Logger logger(Code)

offsetId
final protected static int offsetId(Code)
the offset value for PerformanceArticle primary keys

Constructor Detail
PerformanceBaseTest
public PerformanceBaseTest(String name)(Code)
BrokerTests constructor comment.
Parameters:
  name - java.lang.String

Method Detail
clearTable
protected void clearTable() throws Exception(Code)

createArticle
protected PerformanceArticle createArticle(int id)(Code)
factory method that createa an PerformanceArticle with a given id.
Parameters:
  id - the primary key value for the new object the created PerformanceArticle object

deleteArticles
abstract protected void deleteArticles() throws Exception(Code)
deletes all PerformanceArticle created by insertNewArticles.

getConnection
protected Connection getConnection() throws Exception(Code)
obtain a JDBC Connection. OJB API is used to make this code portable for other target dabases and different lookup methods. the Connection to be used

insertNewArticles
abstract protected void insertNewArticles() throws Exception(Code)
create new PerformanceArticle objects and insert them into the RDBMS. The number of objects to create is defined by articleCount.

readArticles
abstract protected void readArticles() throws Exception(Code)
read in all the PerformanceArticles from the RDBMS that have been inserted by insertNewArticles(). The lookup is done one by one, that is: a primary key based lookup is used.

readArticlesByCursor
abstract protected void readArticlesByCursor() throws Exception(Code)
read in all the PerformanceArticles from the RDBMS that have been inserted by insertNewArticles(). The lookup is done with a cursor fetch, that is: a between Statement is used to select all inserted PerformanceArticles and Objects are read in by fetching from the cursor (JDBC ResultSet).

returnConnection
protected void returnConnection(Connection conn) throws Exception(Code)

setNameOfTest
public void setNameOfTest(String nameOfTest)(Code)
Set the name of the test.
Parameters:
  nameOfTest -

setUp
public void setUp() throws Exception(Code)
setting up the test fixture.

shutdown
public void shutdown()(Code)

tearDown
public void tearDown() throws Exception(Code)
tearing down the test fixture.

testBenchmark
public void testBenchmark() throws Exception(Code)
This method is the driver for the complete Benchmark. It performs the following steps:
1.) n objects are created and inserted to the RDBMS. 2.) the created objects are modified. Modifications are written to the RDBMS with updates. 3.) All objects created in 1.) are read in by primary key based SELECT statements. 4.) Step 3.) is repeated to test caching facilities. 5.) All objects created in 1.) are read by iterating over a ResultSet. 6.) All objects created in 1.) are deleted with n separate DELETE Statements.

updateExistingArticles
abstract protected void updateExistingArticles() throws Exception(Code)
updates all PerformanceArticles inserted by insertNewArticles(). All objects are modified and changes are written to the RDBMS with an UPDATE.

Fields inherited from org.apache.ojb.junit.PBTestCase
public PersistenceBroker broker(Code)(Java Doc)

Methods inherited from org.apache.ojb.junit.PBTestCase
public String getPlatformClass()(Code)(Java Doc)
public void pbPersist(Object obj)(Code)(Java Doc)
public void setUp() throws Exception(Code)(Java Doc)
public void tearDown() throws Exception(Code)(Java Doc)

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