Package org.datanucleus.store.rdbms.request

Class LocateBulkRequest

java.lang.Object

org.datanucleus.store.rdbms.request.BulkRequest

org.datanucleus.store.rdbms.request.LocateBulkRequest

public class LocateBulkRequest
extends BulkRequest

Request to locate a series of records in the data store (all present in the same table). Performs an SQL statement like

 SELECT ID [,FIELD1,FIELD2] FROM CANDIDATE_TABLE WHERE ID = ? OR ID = ? OR ID = ?
 

Field Summary

Fields inherited from class org.datanucleus.store.rdbms.request.BulkRequest

key, table

Constructor Summary

Constructors

Constructor	Description
LocateBulkRequest(DatastoreClass table, org.datanucleus.metadata.AbstractClassMetaData cmd, org.datanucleus.ClassLoaderResolver clr)	Constructor, taking the table.

Method Summary

Modifier and Type	Method	Description
void	execute(org.datanucleus.state.DNStateManager[] sms)	Method performing the location of the records in the datastore.
protected String	getStatement(DatastoreClass table, org.datanucleus.state.DNStateManager[] sms, boolean lock)

Methods inherited from class java.lang.Object

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

Constructor Detail

LocateBulkRequest

public LocateBulkRequest(DatastoreClass table,
                         org.datanucleus.metadata.AbstractClassMetaData cmd,
                         org.datanucleus.ClassLoaderResolver clr)

Constructor, taking the table. Uses the structure of the datastore table to build a basic query.

Parameters:

table - The Class Table representing the datastore table to retrieve

cmd - Metadata for the class whose objects we are locating

clr - ClassLoader resolver

Method Detail

getStatement

protected String getStatement(DatastoreClass table,
                              org.datanucleus.state.DNStateManager[] sms,
                              boolean lock)

execute

public void execute(org.datanucleus.state.DNStateManager[] sms)

Method performing the location of the records in the datastore.

Specified by:

execute in class BulkRequest

Parameters:

sms - StateManagers to be located

Throws:

org.datanucleus.exceptions.NucleusObjectNotFoundException - with nested exceptions for each of missing objects (if any)