question: private void preserveParentLink ( String brokenTableName , String brokenColumnName , String brokenDefaultValue , ArrayList < String > brokenCompareColumns , String hintTableName , String hintColumnName , ArrayList < String > hintCompareColumns ) { String vendorName = m_target . getVendor ( ) ; String catalogName = m_target . getCatalog ( ) ; String schemaName = m_target . getSchema ( ) ; if ( m_source . isObjectExists ( brokenTableName , m_source . getTables ( ) ) ) { boolean columnToPreserveLinkExists = false ; DBObject tableToPreserveLink = m_source . getObjectByName ( brokenTableName , m_source . getTables ( ) ) ; HashMap < Integer , DBObjectDefinition > columns = tableToPreserveLink . getContents ( ) ; Vector < Integer > vc = new Vector < Integer > ( columns . keySet ( ) ) ; for ( Iterator < Integer > ic = vc . iterator ( ) ; ic . hasNext ( ) ; ) { int kc = ic . next ( ) ; DBObject_Table_Column columnDetail = ( DBObject_Table_Column ) columns . get ( kc ) ; String columnName = columnDetail . getName ( ) ; if ( columnName . equalsIgnoreCase ( brokenColumnName ) ) columnToPreserveLinkExists = true ; } if ( columnToPreserveLinkExists ) { s_logger . log ( Level . FINE , "preserveParentLinkDetail" , new Object [ ] { m_objectType , brokenTableName , m_direction } ) ; String sqlCommand = s_dbEngine . sqlAction_preserveParentLinks ( vendorName , catalogName , schemaName , brokenTableName , brokenColumnName , brokenDefaultValue , brokenCompareColumns , hintTableName , hintColumnName , hintCompareColumns ) ; if ( sqlCommand != null ) { Savepoint sp = m_target . setSavepoint ( "preserveParentLinks" ) ; Statement stmt = m_target . setStatement ( ) ; Integer sqlResult = m_target . executeUpdate ( stmt , sqlCommand , false , false ) ; if ( sqlResult != null ) { logUpdateDetail ( sqlResult , null ) ; m_counterUpd = new Integer ( m_counterUpd . intValue ( ) + 1 ) ; } m_target . releaseStatement ( stmt ) ; m_totalUpd = new Integer ( m_totalUpd . intValue ( ) + 1 ) ; m_target . releaseSavepoint ( sp ) ; } } } }
target:  Preserve or re-create link to parent from a given child table