BlobTestpublic class BlobTest extends org.hibernate.junit.functional.DatabaseSpecificFunctionalTestCase
| Fields Summary |
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| private static final int | BLOB_SIZE |
| Constructors Summary |
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public BlobTest(String name)
super( name );
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| Methods Summary |
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| public boolean | appliesTo(org.hibernate.dialect.Dialect dialect)
if ( ! dialect.supportsExpectedLobUsagePattern() ) {
reportSkip( "database/driver does not support expected LOB usage pattern", "LOB support" );
return false;
}
return true;
| | public static void | assertEquals(byte[] val1, byte[] val2)
if ( !ArrayHelper.isEquals( val1, val2 ) ) {
throw new AssertionFailedError( "byte arrays did not match" );
}
| | private byte[] | buildRecursively(int size, boolean on)
byte[] data = new byte[size];
data[0] = mask( on );
for ( int i = 0; i < size; i++ ) {
data[i] = mask( on );
on = !on;
}
return data;
| | private byte[] | extractData(java.sql.Blob blob)
return blob.getBytes( 1, ( int ) blob.length() );
| | public java.lang.String[] | getMappings()
return new String[] { "lob/LobMappings.hbm.xml" };
| | private byte | mask(boolean on)
return on ? ( byte ) 1 : ( byte ) 0;
| | public static junit.framework.Test | suite()
return new FunctionalTestClassTestSuite( BlobTest.class );
| | public void | testBoundedBlobLocatorAccess()
byte[] original = buildRecursively( BLOB_SIZE, true );
byte[] changed = buildRecursively( BLOB_SIZE, false );
Session s = openSession();
s.beginTransaction();
LobHolder entity = new LobHolder();
entity.setBlobLocator( Hibernate.createBlob( original ) );
s.save( entity );
s.getTransaction().commit();
s.close();
s = openSession();
s.beginTransaction();
entity = ( LobHolder ) s.get( LobHolder.class, entity.getId() );
assertEquals( BLOB_SIZE, entity.getBlobLocator().length() );
assertEquals( original, extractData( entity.getBlobLocator() ) );
s.getTransaction().commit();
s.close();
// test mutation via setting the new clob data...
if ( supportsLobValueChangePropogation() ) {
s = openSession();
s.beginTransaction();
entity = ( LobHolder ) s.get( LobHolder.class, entity.getId(), LockMode.UPGRADE );
entity.getBlobLocator().truncate( 1 );
entity.getBlobLocator().setBytes( 1, changed );
s.getTransaction().commit();
s.close();
s = openSession();
s.beginTransaction();
entity = ( LobHolder ) s.get( LobHolder.class, entity.getId(), LockMode.UPGRADE );
assertNotNull( entity.getBlobLocator() );
assertEquals( BLOB_SIZE, entity.getBlobLocator().length() );
assertEquals( changed, extractData( entity.getBlobLocator() ) );
entity.getBlobLocator().truncate( 1 );
entity.getBlobLocator().setBytes( 1, original );
s.getTransaction().commit();
s.close();
}
// test mutation via supplying a new clob locator instance...
s = openSession();
s.beginTransaction();
entity = ( LobHolder ) s.get( LobHolder.class, entity.getId(), LockMode.UPGRADE );
assertNotNull( entity.getBlobLocator() );
assertEquals( BLOB_SIZE, entity.getBlobLocator().length() );
assertEquals( original, extractData( entity.getBlobLocator() ) );
entity.setBlobLocator( Hibernate.createBlob( changed ) );
s.getTransaction().commit();
s.close();
s = openSession();
s.beginTransaction();
entity = ( LobHolder ) s.get( LobHolder.class, entity.getId() );
assertEquals( BLOB_SIZE, entity.getBlobLocator().length() );
assertEquals( changed, extractData( entity.getBlobLocator() ) );
s.delete( entity );
s.getTransaction().commit();
s.close();
| | public void | testBoundedMaterializedBlobAccess()
byte[] original = buildRecursively( BLOB_SIZE, true );
byte[] changed = buildRecursively( BLOB_SIZE, false );
Session s = openSession();
s.beginTransaction();
LobHolder entity = new LobHolder();
entity.setMaterializedBlob( original );
s.save( entity );
s.getTransaction().commit();
s.close();
s = openSession();
s.beginTransaction();
entity = ( LobHolder ) s.get( LobHolder.class, entity.getId() );
assertEquals( BLOB_SIZE, entity.getMaterializedBlob().length );
assertEquals( original, entity.getMaterializedBlob() );
entity.setMaterializedBlob( changed );
s.getTransaction().commit();
s.close();
s = openSession();
s.beginTransaction();
entity = ( LobHolder ) s.get( LobHolder.class, entity.getId() );
assertEquals( BLOB_SIZE, entity.getMaterializedBlob().length );
assertEquals( changed, entity.getMaterializedBlob() );
s.delete( entity );
s.getTransaction().commit();
s.close();
| | public void | testUnboundedBlobLocatorAccess()
if ( ! supportsUnboundedLobLocatorMaterialization() ) {
return;
}
// Note: unbounded mutation of the underlying lob data is completely
// unsupported; most databases would not allow such a construct anyway.
// Thus here we are only testing materialization...
byte[] original = buildRecursively( BLOB_SIZE, true );
Session s = openSession();
s.beginTransaction();
LobHolder entity = new LobHolder();
entity.setBlobLocator( Hibernate.createBlob( original ) );
s.save( entity );
s.getTransaction().commit();
s.close();
// load the entity with the clob locator, and close the session/transaction;
// at that point it is unbounded...
s = openSession();
s.beginTransaction();
entity = ( LobHolder ) s.get( LobHolder.class, entity.getId() );
s.getTransaction().commit();
s.close();
assertEquals( BLOB_SIZE, entity.getBlobLocator().length() );
assertEquals( original, extractData( entity.getBlobLocator() ) );
s = openSession();
s.beginTransaction();
s.delete( entity );
s.getTransaction().commit();
s.close();
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