com.googlecode.objectify.impl

Class HybridQueryResults<T>

java.lang.Object

com.googlecode.objectify.impl.HybridQueryResults<T>

All Implemented Interfaces:

com.google.cloud.datastore.QueryResults<T>, Iterator<T>

public class HybridQueryResults<T>
extends Object
implements com.google.cloud.datastore.QueryResults<T>

Converts keys-only query results into hybrid query results. This involves chunking the keys into batches and loading each from the datastore. Care is taken to preserve cursor behavior and filter null results (possible due to both the time delay between the query and the load and also eventual consistency in general).

Constructor Summary

Constructors

Constructor and Description
HybridQueryResults(LoadEngine loadEngine, com.google.cloud.datastore.QueryResults<Key<T>> source, int chunkSize)

Method Summary

Modifier and Type	Method and Description
Class<?>	getResultClass()
boolean	hasNext()
T	next()
void	remove() Not implemented

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.cloud.datastore.QueryResults

getCursorAfter

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Detail

HybridQueryResults

public HybridQueryResults(LoadEngine loadEngine,
                          com.google.cloud.datastore.QueryResults<Key<T>> source,
                          int chunkSize)

Parameters:

chunkSize - can be MAX_VALUE to indicate "just one chunk"

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<T>

next

public T next()

Specified by:

next in interface Iterator<T>

remove

public void remove()

Not implemented

Specified by:

remove in interface Iterator<T>

getResultClass

public Class<?> getResultClass()

Specified by:

getResultClass in interface com.google.cloud.datastore.QueryResults<T>