cz.o2.proxima.direct.core

Class DirectAttributeFamilyProxyDescriptor.ProxyBatchLogReader

java.lang.Object

cz.o2.proxima.direct.core.DirectAttributeFamilyProxyDescriptor.ProxyBatchLogReader

All Implemented Interfaces:

BatchLogReader

Enclosing class:

DirectAttributeFamilyProxyDescriptor

private static class DirectAttributeFamilyProxyDescriptor.ProxyBatchLogReader
extends java.lang.Object
implements BatchLogReader

Nested Class Summary

Nested classes/interfaces inherited from interface cz.o2.proxima.direct.batch.BatchLogReader

BatchLogReader.Factory<T extends BatchLogReader>

Field Summary

Fields

Modifier and Type	Field and Description
private DirectAttributeFamilyProxyDescriptor.AttrLookup	lookup
private BatchLogReader	reader

Constructor Summary

Constructors

Constructor and Description
ProxyBatchLogReader(BatchLogReader reader, DirectAttributeFamilyProxyDescriptor.AttrLookup lookup)

Method Summary

Modifier and Type	Method and Description
BatchLogReader.Factory<?>	asFactory() Convert instance of this reader to BatchLogReader.Factory suitable for serialization.
java.util.List<Partition>	getPartitions(long startStamp, long endStamp) Retrieve list of partitions covering data from the given range.
ObserveHandle	observe(java.util.List<Partition> partitions, java.util.List<AttributeDescriptor<?>> attributes, BatchLogObserver observer) Observe data stored in given partitions.

Methods inherited from class java.lang.Object

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

Methods inherited from interface cz.o2.proxima.direct.batch.BatchLogReader

getPartitions, getPartitions

Field Detail

reader

private final BatchLogReader reader

lookup

private final DirectAttributeFamilyProxyDescriptor.AttrLookup lookup

Constructor Detail

ProxyBatchLogReader

public ProxyBatchLogReader(BatchLogReader reader,
                           DirectAttributeFamilyProxyDescriptor.AttrLookup lookup)

Method Detail

getPartitions

public java.util.List<Partition> getPartitions(long startStamp,
                                               long endStamp)

Description copied from interface: BatchLogReader

Retrieve list of partitions covering data from the given range.

Specified by:

getPartitions in interface BatchLogReader

Parameters:

startStamp - starting timestamp (inclusive)

endStamp - ending timestamp (exclusive)

Returns:

list of partitions covering the time range

observe

public ObserveHandle observe(java.util.List<Partition> partitions,
                             java.util.List<AttributeDescriptor<?>> attributes,
                             BatchLogObserver observer)

Description copied from interface: BatchLogReader

Observe data stored in given partitions.

Specified by:

observe in interface BatchLogReader

Parameters:

partitions - partitions to observe

attributes - attribute descriptors to filter out

observer - the observer by which to consume the data

Returns:

an ObserveHandle to control the consumption

asFactory

public BatchLogReader.Factory<?> asFactory()

Description copied from interface: BatchLogReader

Convert instance of this reader to BatchLogReader.Factory suitable for serialization.

Specified by:

asFactory in interface BatchLogReader

Returns:

the BatchLogReader.Factory representing this reader