org.apache.giraph.ooc.persistence

Class DataIndex

java.lang.Object

org.apache.giraph.ooc.persistence.DataIndex

public class DataIndex
extends Object

Index chain used in out-of-core data accessor object (DAO) to access serialized data.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	DataIndex.DataIndexEntry Interface to unify different types of entries used as index chain
static class	DataIndex.NumericIndexEntry Class representing any index chain that depends on something with id.
static class	DataIndex.TypeIndexEntry Different static types of index chain entry

Constructor Summary

Constructors

Constructor and Description
DataIndex()

Method Summary

Modifier and Type	Method and Description
DataIndex	addIndex(DataIndex.DataIndexEntry entry) Add an index to the index chain
DataIndex	copy() Create a copy of the existing DataIndex
boolean	equals(Object obj)
int	hashCode()
DataIndex	removeLastIndex() Remove/Pop the last index in the index chain
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DataIndex

public DataIndex()

Method Detail

addIndex

public DataIndex addIndex(DataIndex.DataIndexEntry entry)

Add an index to the index chain

Parameters:

entry - the entry to add to the chain

Returns:

the index chain itself

removeLastIndex

public DataIndex removeLastIndex()

Remove/Pop the last index in the index chain

Returns:

the index chain itself

copy

public DataIndex copy()

Create a copy of the existing DataIndex

Returns:

a copy of the existing index chain

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object