hex.tree

Class CompressedForest

java.lang.Object

water.Iced<CompressedTree>

hex.tree.CompressedForest

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, water.Freezable<CompressedTree>

public class CompressedForest
extends water.Iced<CompressedTree>

Collection of Compressed Trees contains: - keys to trees - metadata shared among all the trees (eg. domain information) The purpose of this class is to avoid replicating large common metadata into each Compressed Tree (eg. domains).

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CompressedForest.LocalCompressedForest Node-local representation of a collection of trees.

Field Summary

Fields

Modifier and Type	Field and Description
java.lang.String[][]	_domains
water.Key<CompressedTree>[][]	_treeKeys

Constructor Summary

Constructors

Constructor and Description
CompressedForest(water.Key<CompressedTree>[][] treeKeys, java.lang.String[][] domains)

Method Summary

Modifier and Type	Method and Description
CompressedForest.LocalCompressedForest	fetch() Fetches trees from DKV and converts to a node-local structure.
int	ntrees()

Methods inherited from class water.Iced

asBytes, clone, copyOver, frozenType, read, readExternal, readJSON, reloadFromBytes, toJsonBytes, toJsonString, write, writeExternal, writeJSON

Methods inherited from class java.lang.Object

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

Field Detail

_treeKeys

public final water.Key<CompressedTree>[][] _treeKeys

_domains

public final java.lang.String[][] _domains

Constructor Detail

CompressedForest

public CompressedForest(water.Key<CompressedTree>[][] treeKeys,
                        java.lang.String[][] domains)

Method Detail

ntrees

public final int ntrees()

fetch

public final CompressedForest.LocalCompressedForest fetch()

Fetches trees from DKV and converts to a node-local structure.

Returns:

fetched trees