com.illumon.iris.db.v2.utils

Interface Index.Factory

Enclosing interface:

Index

public static interface Index.Factory

Method Summary

Modifier and Type	Method and Description
Index.RandomBuilder	getBuilder()
Index	getEmptyIndex()
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... keys) Get an Index containing the specified keys.
Index	getIndexByValues(gnu.trove.list.array.TLongArrayList list) Get an Index containing the specified keys.
Index.RandomBuilder	getRandomBuilder()
Index.SequentialBuilder	getSequentialBuilder()

Method Detail

getIndexByValues

Index getIndexByValues(long... keys)

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

Parameters:

keys - The keys to add to the index

Returns:

An index containing the specified keys

getEmptyIndex

Index getEmptyIndex()

getIndexByValues

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

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

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

Index getIndexByRange(long firstKey,
                      long lastKey)

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

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

Index getFlatIndex(long size)

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

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

getRandomBuilder

Index.RandomBuilder getRandomBuilder()

Returns:

An IndexBuilder suitable for inserting ranges in no particular order.

getSequentialBuilder

Index.SequentialBuilder getSequentialBuilder()

Returns:

A builder optimized for inserting ranges sequentially in order.

getBuilder

Index.RandomBuilder getBuilder()