Package com.redwood.scheduler.api.model

Class LongListCallback

java.lang.Object

com.redwood.scheduler.api.model.LongListCallback

All Implemented Interfaces:

APIResultSetCallback

public class LongListCallback
extends Object
implements APIResultSetCallback

APIResultSetCallback implementation for retrieving the long value present in the first column of the result set. If the value returned in the first column is null, then it won't be included in the resulting List.

Field Summary

Fields inherited from interface com.redwood.scheduler.api.model.APIResultSetCallback

NULL

Constructor Summary

Constructors

Constructor	Description
LongListCallback(int aSegmentSize)

Method Summary

Modifier and Type	Method	Description
boolean	callback(ResultSet aRs, ObjectGetter aObjectGetter)	Invoked for each result, provided that the previous invocation returned true.
com.redwood.scheduler.infrastructure.collections.LongList	getResult()
void	start()	Invoked before processing any results.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.redwood.scheduler.api.model.APIResultSetCallback

finish

Constructor Detail

LongListCallback

public LongListCallback(int aSegmentSize)

Parameters:

aSegmentSize - pass 0 to use the default segment size

Method Detail

start

public void start()

Description copied from interface: APIResultSetCallback

Invoked before processing any results.

This is before any calls to APIResultSetCallback.callback(ResultSet, ObjectGetter) are made.

Note that this may be invoked more than once under some circumstances. (Such circumstances include when the query is restarted due to underlying database errors.)

Specified by:

start in interface APIResultSetCallback

callback

public boolean callback(ResultSet aRs,
                        ObjectGetter aObjectGetter)
                 throws SQLException

Description copied from interface: APIResultSetCallback

Invoked for each result, provided that the previous invocation returned true.

Specified by:

callback in interface APIResultSetCallback

Parameters:

aRs - the result-set to process

aObjectGetter - an object-getter with can be used to convert the result-set into one (or more) objects.

Returns:

true if this method should be invoked for the next result, false if subsequent results are to be discarded.

Throws:

SQLException - Exception thrown when a database-related error occurs

getResult

public com.redwood.scheduler.infrastructure.collections.LongList getResult()