water.fvec

Class Frame.VecSpecifier

java.lang.Object

water.Iced

water.fvec.Frame.VecSpecifier

All Implemented Interfaces:

java.io.Externalizable, java.io.Serializable, java.lang.Cloneable, Freezable, Vec.Holder

Enclosing class:

Frame

public static class Frame.VecSpecifier
extends Iced
implements Vec.Holder

Pair of (column name, Frame key).

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
java.lang.String	_column_name
Key<Frame>	_frame

Constructor Summary

Constructors

Constructor and Description
VecSpecifier()
VecSpecifier(Key<Frame> frame, java.lang.String column_name)

Method Summary

Modifier and Type	Method and Description
Vec	vec()
static java.lang.String[]	vecNames(Frame.VecSpecifier[] vecSpecifiers)

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

_frame

public Key<Frame> _frame

_column_name

public java.lang.String _column_name

Constructor Detail

VecSpecifier

public VecSpecifier()

VecSpecifier

public VecSpecifier(Key<Frame> frame,
                    java.lang.String column_name)

Method Detail

vec

public Vec vec()

Specified by:

vec in interface Vec.Holder

vecNames

public static java.lang.String[] vecNames(Frame.VecSpecifier[] vecSpecifiers)
                                   throws java.lang.NullPointerException

Parameters:

vecSpecifiers - An Array of vectors specifiers to extract column names from. May not be null.

Returns:

An array of String with names of the columns represented by each given VecSpecifier. Possibly empty.

Throws:

java.lang.NullPointerException - When vecSpecifiers argument is null.