cgl.imr.types
Class BytesValue

java.lang.Object
  extended by cgl.imr.types.BytesValue
All Implemented Interfaces:
TwisterConstants, TwisterSerializable, Value

public class BytesValue
extends Object
implements Value

Implementation of ByteValue. Simplest value type that can be used in any MapReduce computation. Data is represented as an array of bytes which will be transferred as it is between different components of the framework either in memory or via the network.


Nested Class Summary
 
Nested classes/interfaces inherited from interface cgl.imr.base.TwisterConstants
TwisterConstants.JobState
 
Field Summary
 
Fields inherited from interface cgl.imr.base.TwisterConstants
COMBINE_INPUT, COMBINE_TOPIC_BASE, DIR_LIST_REQ, DIR_LIST_RES, FAILED, FIXED_DATA_FILE, FIXED_DATA_MODEL, HEP_DATA_STRING, MAP_ITERATIONS_OVER, MAP_REDUCE_TOPIC_BASE, MAP_TASK, MAP_TASK_REQUEST, MAP_WORKER_STARTED, MAPPER_REQUEST, MONITOR_REQUEST, MONITOR_RESPONSE, MONITOR_SLEEP_TIME, NEW_JOB_REQUEST, NEW_JOB_RESPONSE, NUM_MAP_TASKS, NUM_REDUCE_TASKS, PARTITION_FILE_RESPONSE_TOPIC_BASE, PARTITION_FILE_SPLIT_PATTERN, PROPERTIES_FILE, REDUCE_INPUT, REDUCE_RESPONSE, REDUCE_TASK, REDUCE_TASK_REQUEST, REDUCE_TOPIC_BASE, REDUCE_WORKER_REQUEST, RESPONSE_TOPIC_BASE, SEND_RECV_MAX_SLEEP_TIME, SEND_RECV_SLEEP_TIME, SUCCESS, TASK_STATUS, WORKER_RESPONSE
 
Constructor Summary
BytesValue()
           
BytesValue(byte[] val)
           
 
Method Summary
 void fromBytes(byte[] bytes)
          Construct the object back from a previously serialized bytes.
 byte[] getBytes()
          Serialize the object and returns the bytes.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

BytesValue

public BytesValue()

BytesValue

public BytesValue(byte[] val)
Method Detail

fromBytes

public void fromBytes(byte[] bytes)
               throws SerializationException
Description copied from interface: TwisterSerializable
Construct the object back from a previously serialized bytes.

Specified by:
fromBytes in interface TwisterSerializable
Throws:
SerializationException

getBytes

public byte[] getBytes()
                throws SerializationException
Description copied from interface: TwisterSerializable
Serialize the object and returns the bytes.

Specified by:
getBytes in interface TwisterSerializable
Returns:
byte[] of serialized object.
Throws:
SerializationException


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