org.wikidata.query.rdf.tool.change

Class IdChangeSource

java.lang.Object

org.wikidata.query.rdf.tool.change.IdChangeSource

All Implemented Interfaces:

Change.Source<IdChangeSource.Batch>

public class IdChangeSource
extends Object
implements Change.Source<IdChangeSource.Batch>

Blindly iterates an id range and returns those as "changes". Can be used to load known ids.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	IdChangeSource.Batch Batch implementation for this change source.

Constructor Summary

Constructors

Constructor and Description
IdChangeSource(String format, long start, long stop, long batchSize)

Method Summary

Modifier and Type	Method and Description
IdChangeSource.Batch	firstBatch() Fetch the first batch.
static IdChangeSource	forItems(long start, long stop, long batchSize) Build and IdChangeSource for items as opposed to properties.
IdChangeSource.Batch	nextBatch(IdChangeSource.Batch lastBatch) Fetches the next batch after lastBatch.

Methods inherited from class java.lang.Object

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

Constructor Detail

IdChangeSource

public IdChangeSource(String format,
                      long start,
                      long stop,
                      long batchSize)

Method Detail

forItems

public static IdChangeSource forItems(long start,
                                      long stop,
                                      long batchSize)

Build and IdChangeSource for items as opposed to properties.

firstBatch

public IdChangeSource.Batch firstBatch()
                                throws RetryableException

Description copied from interface: Change.Source

Fetch the first batch.

Specified by:

firstBatch in interface Change.Source<IdChangeSource.Batch>

Throws:

RetryableException - is the fetch fails in a retryable way

nextBatch

public IdChangeSource.Batch nextBatch(IdChangeSource.Batch lastBatch)
                               throws RetryableException

Description copied from interface: Change.Source

Fetches the next batch after lastBatch.

Specified by:

nextBatch in interface Change.Source<IdChangeSource.Batch>

Throws:

RetryableException - is the fetch fails in a retryable way