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

Class AbstractFactory

java.lang.Object

com.illumon.iris.db.v2.utils.AbstractFactory

All Implemented Interfaces:

Index.Factory

public abstract class AbstractFactory
extends Object
implements Index.Factory

This is the base class for factories that construct Indexes.

Constructor Summary

Constructors

Constructor	Description
AbstractFactory()

Method Summary

Modifier and Type	Method	Description
Index	getFlatIndex(long size)	Get a flat Index containing the range [0, size), or an empty index if the specified size is <= 0.
Index	getIndexByRange(long firstKey, long lastKey)	Create an Index containing the continuous range [firstKey, lastKey]
Index	getIndexByValues(long key)	Produce an index containing a single key.
Index	getIndexByValues(long... keys)	Get an Index containing the specified keys.
Index	getIndexByValues(gnu.trove.list.array.TLongArrayList list)	Get an Index containing the specified keys.

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.Index.Factory

getBuilder, getEmptyIndex, getRandomBuilder, getSequentialBuilder

Constructor Details

AbstractFactory

public AbstractFactory()

Method Details

getIndexByValues

public Index getIndexByValues(long... keys)

Description copied from interface: Index.Factory

Get an Index containing the specified keys. All keys must be positive numbers

Specified by:

getIndexByValues in interface Index.Factory

Parameters:

keys - The keys to add to the index

Returns:

An index containing the specified keys

getIndexByValues

public Index getIndexByValues(long key)

Description copied from interface: Index.Factory

Produce an index containing a single key.

Specified by:

getIndexByValues in interface Index.Factory

Parameters:

key - the key that will exist in the new Index

Returns:

a new Index containing key

getIndexByValues

public Index getIndexByValues(gnu.trove.list.array.TLongArrayList list)

Description copied from interface: Index.Factory

Get an Index containing the specified keys. The provided list is sorted, and then passed to a sequential builder.

Specified by:

getIndexByValues in interface Index.Factory

Parameters:

list - a Trove long array list; note that this list is mutated within the method

Returns:

an Index containing the values from list

getIndexByRange

public Index getIndexByRange(long firstKey, long lastKey)

Description copied from interface: Index.Factory

Create an Index containing the continuous range [firstKey, lastKey]

Specified by:

getIndexByRange in interface Index.Factory

Parameters:

firstKey - The first key in the continuous range

lastKey - The last key in the continuous range

Returns:

An index containing the specified range

getFlatIndex

public Index getFlatIndex(long size)

Description copied from interface: Index.Factory

Get a flat Index containing the range [0, size), or an empty index if the specified size is <= 0.

Specified by:

getFlatIndex in interface Index.Factory

Parameters:

size - The size of the index to create

Returns:

A flat index containing the keys [0, size) or an empty index if the size is <= 0