org.janusgraph.diskstorage

Interface Entry

All Superinterfaces:

Comparable<StaticBuffer>, MetaAnnotated, StaticBuffer

All Known Implementing Classes:

StaticArrayEntry

public interface Entry
extends StaticBuffer, MetaAnnotated

An entry is the primitive persistence unit used in the graph database storage backend.

An entry consists of a column and value both of which are general ByteBuffers. The value may be null but the column may not.

Author:

Matthias Bröcheler ([email protected]);

Nested Class Summary

Nested classes/interfaces inherited from interface org.janusgraph.diskstorage.StaticBuffer

StaticBuffer.Factory<T>

Field Summary

Fields inherited from interface org.janusgraph.diskstorage.StaticBuffer

ARRAY_FACTORY, BB_FACTORY, STATIC_FACTORY

Method Summary

Modifier and Type	Method and Description
RelationCache	getCache() Returns the cached parsed representation of this Entry if it exists, else NULL
StaticBuffer	getColumn()
<T> T	getColumnAs(StaticBuffer.Factory<T> factory)
StaticBuffer	getValue()
<T> T	getValueAs(StaticBuffer.Factory<T> factory)
int	getValuePosition()
boolean	hasValue()
void	setCache(RelationCache cache) Sets the cached parsed representation of this Entry.

Methods inherited from interface org.janusgraph.diskstorage.StaticBuffer

as, asByteBuffer, asReadBuffer, getBoolean, getByte, getBytes, getChar, getChars, getDouble, getDoubles, getFloat, getFloats, getInt, getInts, getLong, getLongs, getShort, getShorts, length, subrange, subrange

Methods inherited from interface java.lang.Comparable

compareTo

Methods inherited from interface org.janusgraph.diskstorage.MetaAnnotated

getMetaData, hasMetaData

Method Detail

getValuePosition

int getValuePosition()

hasValue

boolean hasValue()

getColumn

StaticBuffer getColumn()

getColumnAs

<T> T getColumnAs(StaticBuffer.Factory<T> factory)

getValue

StaticBuffer getValue()

getValueAs

<T> T getValueAs(StaticBuffer.Factory<T> factory)

getCache

RelationCache getCache()

Returns the cached parsed representation of this Entry if it exists, else NULL

Returns:

setCache

void setCache(RelationCache cache)

Sets the cached parsed representation of this Entry. This method does not synchronize, so a previously set representation would simply be overwritten.

Parameters:

cache -