com.aspc.DBObj.Internal.DataLoader

Class DBDataLoader

java.lang.Object

com.aspc.DBObj.Internal.DataLoader.DBDataLoader

All Implemented Interfaces:

DataLoader

public class DBDataLoader
extends java.lang.Object
implements DataLoader

THREAD MODE: SINGLE-THREADED

Since:

29 September 2006

Author:

jason

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	DBDATA_LOADER_VERSION
static VersionENV	VERSION

Constructor Summary

Constructors

Constructor and Description
DBDataLoader(DataBase db, java.lang.String sql) Creates a new instance of DBDataResult

Method Summary

Modifier and Type	Method and Description
void	abort() abort the result
void	close() close the result
DataBase	getDB() return the current database
long	getRequiredTransNr() The required transaction for this request.
DataResultScroller	getResults() get the result
java.lang.String	getSQL() return the SQL
static DBDataLoader	make(VirtualDB layer, DBClass rootClass, long[] rows) Select all data for fetched rows.
void	setRequiredTransNr(long transNr) When the minimum transaction nr is known then set it so a deleted record can get the correct transaction.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

DBDATA_LOADER_VERSION

public static final java.lang.String DBDATA_LOADER_VERSION

See Also:

Constant Field Values

VERSION

public static final VersionENV VERSION

Constructor Detail

DBDataLoader

public DBDataLoader(DataBase db,
                    java.lang.String sql)

Creates a new instance of DBDataResult

Parameters:

db - the database

sql - the SQL

Method Detail

make

@CheckReturnValue
 @Nonnull
public static DBDataLoader make(VirtualDB layer,
                                                            DBClass rootClass,
                                                            long[] rows)
                                                     throws java.lang.Exception

Select all data for fetched rows. TODO: Try new SELECT Format SELECT row_uid, -1, class_gid, trans_id, deleted_ms, '', '' FROM row_DDDDDDDD_CCCCCCCC WHERE ... UNOIN SELECT row_uid, seq_nr, field_gid, 0, linked_uid, the_val, language_cd FROM field_DDDDDDDD_CCCCCCCC WHERE ... ORDER BY 1, 2

Parameters:

layer - The layer

rootClass - the root class

rows - the rows to load.

Returns:

the data set

Throws:

java.lang.Exception - a serious problem

setRequiredTransNr

public void setRequiredTransNr(long transNr)

When the minimum transaction nr is known then set it so a deleted record can get the correct transaction.

Specified by:

setRequiredTransNr in interface DataLoader

Parameters:

transNr - the transaction

getRequiredTransNr

@CheckReturnValue
public long getRequiredTransNr()

The required transaction for this request.

Specified by:

getRequiredTransNr in interface DataLoader

Returns:

the required transaction

getDB

public DataBase getDB()

return the current database

Returns:

the database

getSQL

public java.lang.String getSQL()

return the SQL

Returns:

the SQL

toString

@CheckReturnValue
 @Nonnull
public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

the description

getResults

@CheckReturnValue
 @Nonnull
public DataResultScroller getResults()
                                                          throws java.lang.Exception

get the result

Specified by:

getResults in interface DataLoader

Returns:

the result

Throws:

java.lang.Exception - a serious problem

abort

public void abort()

abort the result

Specified by:

abort in interface DataLoader

close

public void close()
           throws java.sql.SQLException

close the result

Specified by:

close in interface DataLoader

Throws:

java.sql.SQLException - a serious problem