Package com.illumon.iris.db.v2.utils

Class LongColumnSourceRedirectionIndex

java.lang.Object

com.illumon.iris.db.v2.utils.LongColumnSourceRedirectionIndex

All Implemented Interfaces:

RedirectionIndex

public final class LongColumnSourceRedirectionIndex
extends Object
implements RedirectionIndex

Nested Class Summary

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.utils.RedirectionIndex

RedirectionIndex.Factory

Field Summary

Fields inherited from interface com.illumon.iris.db.v2.utils.RedirectionIndex

DEFAULT_FILL_INSTANCE, EMPTY_CONTEXT, FACTORY, USE_LOCK_FREE_IMPL_PROPERTY_NAME

Constructor Summary

Constructors

Constructor	Description
LongColumnSourceRedirectionIndex(WritableSource<Long> columnSource)

Method Summary

Modifier and Type	Method	Description
void	ensureUpdateCapacity(int capacity)	Ensure that there is enough space to perform at least 'capacity' updates.
void	fillChunk(RedirectionIndex.FillContext fillContext, WritableLongChunk<Attributes.KeyIndices> mappedKeysOut, OrderedKeys keysToMap)	Lookup each element in OrderedKeys and write the result to mappedKeysOut
void	fillFromChunk(WritableChunkSink.FillFromContext context, Chunk<? extends Attributes.Values> src, OrderedKeys orderedKeys)	Our default, inefficient, implementation.
void	fillPrevChunk(RedirectionIndex.FillContext fillContext, WritableLongChunk<Attributes.KeyIndices> mappedKeysOut, OrderedKeys keysToMap)
long	get(long key)	Get the current inner mapping for the specified key.
long	getPrev(long key)	Get the previous mapping for the specified key
RedirectionIndex.FillContext	makeFillContext(int chunkSize, SharedContext sharedContext)
WritableChunkSink.FillFromContext	makeFillFromContext(int chunkCapacity)	Provide a default, empty WritableChunkSink.FillFromContext for use with our default WritableSource.fillFromChunk(com.illumon.iris.db.v2.sources.WritableChunkSink.FillFromContext, com.illumon.iris.db.v2.sources.chunk.Chunk<? extends com.illumon.iris.db.v2.sources.chunk.Attributes.Values>, com.illumon.iris.db.v2.utils.OrderedKeys).
long	put(long key, long index)	Insert a mapping from key to inner index into this redirection.
void	putVoid(long key, long index)	Like put, but we do not care about a return value.
long	remove(long key)	Remove the specified mapping from the redirection
void	removeAll(OrderedKeys keys)	Remove all the keys contained in the OrderedKeys from this redirection
void	removeAllUnordered(LongChunk<Attributes.KeyIndices> keys)
void	removeVoid(long key)	Like remove, but we do not care about a return value.
void	startTrackingPrevValues()	Indicate to the implementation that it should track changes with previous values for ticking updates.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.illumon.iris.db.v2.utils.RedirectionIndex

applyShift, ascendingMapping, fillChunkUnordered

Constructor Details

LongColumnSourceRedirectionIndex

public LongColumnSourceRedirectionIndex(WritableSource<Long> columnSource)

Method Details

ensureUpdateCapacity

public void ensureUpdateCapacity(int capacity)

Description copied from interface: RedirectionIndex

Ensure that there is enough space to perform at least 'capacity' updates.

Specified by:

ensureUpdateCapacity in interface RedirectionIndex

Parameters:

capacity - the capacity of the update

put

public long put(long key,
 long index)

Description copied from interface: RedirectionIndex

Insert a mapping from key to inner index into this redirection.

Specified by:

put in interface RedirectionIndex

Parameters:

key - the key to be mapped

index - the index the key should be mapped to on the inner source

Returns:

the previous mapping for the specified key, or ReadOnlyIndex.NULL_KEY if there was none.

putVoid

public void putVoid(long key,
 long index)

Description copied from interface: RedirectionIndex

Like put, but we do not care about a return value.

Specified by:

putVoid in interface RedirectionIndex

Parameters:

key - the key to put

index - the inner value to insert into the redirection index

get

public long get(long key)

Description copied from interface: RedirectionIndex

Get the current inner mapping for the specified key.

Specified by:

get in interface RedirectionIndex

Parameters:

key - the key to find a mapping for.

Returns:

the current mapping for the specified key, or ReadOnlyIndex.NULL_KEY if there was none.

getPrev

public long getPrev(long key)

Description copied from interface: RedirectionIndex

Get the previous mapping for the specified key

Specified by:

getPrev in interface RedirectionIndex

Parameters:

key - the key to locate a mapping for

Returns:

the mapped value or ReadOnlyIndex.NULL_KEY if none existed.

makeFillContext

public RedirectionIndex.FillContext makeFillContext(int chunkSize,
 SharedContext sharedContext)

Specified by:

makeFillContext in interface RedirectionIndex

fillChunk

public void fillChunk(@NotNull
 RedirectionIndex.FillContext fillContext,
 @NotNull
 WritableLongChunk<Attributes.KeyIndices> mappedKeysOut,
 @NotNull
 OrderedKeys keysToMap)

Description copied from interface: RedirectionIndex

Lookup each element in OrderedKeys and write the result to mappedKeysOut

Specified by:

fillChunk in interface RedirectionIndex

Parameters:

fillContext - the RedirectionIndex FillContext

mappedKeysOut - the result chunk

keysToMap - the keys to lookup in this redirection index

fillPrevChunk

public void fillPrevChunk(@NotNull
 RedirectionIndex.FillContext fillContext,
 @NotNull
 WritableLongChunk<Attributes.KeyIndices> mappedKeysOut,
 @NotNull
 OrderedKeys keysToMap)

Specified by:

fillPrevChunk in interface RedirectionIndex

remove

public long remove(long key)

Description copied from interface: RedirectionIndex

Remove the specified mapping from the redirection

Specified by:

remove in interface RedirectionIndex

Parameters:

key - the index to unmap.

Returns:

the previous mapping or ReadOnlyIndex.NULL_KEY if none existed.

removeVoid

public void removeVoid(long key)

Description copied from interface: RedirectionIndex

Like remove, but we do not care about a return value.

Specified by:

removeVoid in interface RedirectionIndex

Parameters:

key - the key to remove

removeAll

public void removeAll(OrderedKeys keys)

Description copied from interface: RedirectionIndex

Remove all the keys contained in the OrderedKeys from this redirection

Specified by:

removeAll in interface RedirectionIndex

Parameters:

keys - the keys to remove.

removeAllUnordered

public void removeAllUnordered(LongChunk<Attributes.KeyIndices> keys)

Specified by:

removeAllUnordered in interface RedirectionIndex

makeFillFromContext

public WritableChunkSink.FillFromContext makeFillFromContext(int chunkCapacity)

Description copied from interface: RedirectionIndex

Provide a default, empty WritableChunkSink.FillFromContext for use with our default WritableSource.fillFromChunk(com.illumon.iris.db.v2.sources.WritableChunkSink.FillFromContext, com.illumon.iris.db.v2.sources.chunk.Chunk<? extends com.illumon.iris.db.v2.sources.chunk.Attributes.Values>, com.illumon.iris.db.v2.utils.OrderedKeys).

Specified by:

makeFillFromContext in interface RedirectionIndex

fillFromChunk

public void fillFromChunk(@NotNull
 WritableChunkSink.FillFromContext context,
 @NotNull
 Chunk<? extends Attributes.Values> src,
 @NotNull
 OrderedKeys orderedKeys)

Description copied from interface: RedirectionIndex

Our default, inefficient, implementation. Inheritors who care should provide a better implementation.

Specified by:

fillFromChunk in interface RedirectionIndex

startTrackingPrevValues

public void startTrackingPrevValues()

Description copied from interface: RedirectionIndex

Indicate to the implementation that it should track changes with previous values for ticking updates.

Specified by:

startTrackingPrevValues in interface RedirectionIndex