edu.washington.cs.knowitall.sequence
Class SimpleLayeredSequence

java.lang.Object
  edu.washington.cs.knowitall.sequence.SimpleLayeredSequence

All Implemented Interfaces:

LayeredSequence

Direct Known Subclasses:

BIOLayeredSequence, NormalizedField

public class SimpleLayeredSequence
extends Object
implements LayeredSequence

An immutable implementation of LayeredSequence. This class represents a sequence with multiple layers (e.g. a sentence with words and part-of-speech tags). In this implementation, the length of the sequence is fixed and the values at each position in the sequence cannot be changed. New layers can be added.

Author:

afader

Constructor Summary

SimpleLayeredSequence(int length)
Constructs a new layered sequence with the given length

Method Summary

void	addLayer(String layerName, com.google.common.collect.ImmutableList<String> layer) Adds a new layer to the sequence
void	addLayer(String layerName, List<String> layer) Adds a new layer to the sequence.
void	addLayer(String layerName, String[] layer) Adds a new layer to the sequence
boolean	equals(Object obj)
String	get(String layerName, int index)
com.google.common.collect.ImmutableList<String>	getLayer(String layerName)
String	getLayerAsString(String layerName)
String	getLayerAsString(String layerName, int start, int length)
String	getLayerAsString(String layerName, edu.washington.cs.knowitall.commonlib.Range r)
Collection<String>	getLayerNames()
int	getLength()
int	getNumLayers()
SimpleLayeredSequence	getSubSequence(int start, int length) Returns the subsequence of this layered sequence starting at the given position with the given length
SimpleLayeredSequence	getSubSequence(edu.washington.cs.knowitall.commonlib.Range r) Returns the subsequence of this layered sequence starting at the given position with the given length
com.google.common.collect.ImmutableList<String>	getSubSequence(String layerName, int start, int length)
List<String>	getSubSequence(String layerName, edu.washington.cs.knowitall.commonlib.Range r)
int	hashCode()
boolean	hasLayer(String layerName)

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleLayeredSequence

public SimpleLayeredSequence(int length)

Constructs a new layered sequence with the given length

Parameters:

length -

Method Detail

getLayer

public com.google.common.collect.ImmutableList<String> getLayer(String layerName)

Parameters:

layerName -

Returns:

an immutable list of the layer

getNumLayers

public int getNumLayers()

Specified by:

getNumLayers in interface LayeredSequence

Returns:

the number of layers

getLength

public int getLength()

Specified by:

getLength in interface LayeredSequence

Returns:

the length of the sequence

addLayer

public void addLayer(String layerName,
                     com.google.common.collect.ImmutableList<String> layer)
              throws SequenceException

Adds a new layer to the sequence

Parameters:

layerName -

layer -

Throws:

SequenceException - if a layer with layerName already exists or the given layer has the incorrect length

addLayer

public void addLayer(String layerName,
                     List<String> layer)

Adds a new layer to the sequence. An immutable list will be instantiated around layer.

Parameters:

layerName -

layer -

Throws:

SequenceException - if a layer with layerName already exists or the given layer has the incorrect length

addLayer

public void addLayer(String layerName,
                     String[] layer)
              throws SequenceException

Adds a new layer to the sequence

Parameters:

layerName -

layer -

Throws:

SequenceException - if a layer with layerName already exists or the given layer has the incorrect length

hasLayer

public boolean hasLayer(String layerName)

Specified by:

hasLayer in interface LayeredSequence

Parameters:

layerName -

Returns:

true if this sequence has a layer with the given name

get

public String get(String layerName,
                  int index)

Specified by:

get in interface LayeredSequence

Returns:

the value of the given layer at the given index

getSubSequence

public com.google.common.collect.ImmutableList<String> getSubSequence(String layerName,
                                                                      int start,
                                                                      int length)

Parameters:

layerName -

start -

length -

Returns:

an immutable subsequence of the layer

getSubSequence

public List<String> getSubSequence(String layerName,
                                   edu.washington.cs.knowitall.commonlib.Range r)

Parameters:

layerName -

r -

Returns:

an immutable subsequence of the layer

getSubSequence

public SimpleLayeredSequence getSubSequence(int start,
                                            int length)

Returns the subsequence of this layered sequence starting at the given position with the given length

Parameters:

start -

length -

Returns:

getSubSequence

public SimpleLayeredSequence getSubSequence(edu.washington.cs.knowitall.commonlib.Range r)

Returns the subsequence of this layered sequence starting at the given position with the given length

Parameters:

r -

Returns:

getLayerNames

public Collection<String> getLayerNames()

Specified by:

getLayerNames in interface LayeredSequence

Returns:

the layer names

getLayerAsString

public String getLayerAsString(String layerName)

Parameters:

layerName -

Returns:

the tokens in the given layer name, joined by spaces

getLayerAsString

public String getLayerAsString(String layerName,
                               edu.washington.cs.knowitall.commonlib.Range r)

Parameters:

layerName -

r -

Returns:

the tokens in the given layer name in the given range, joined by spaces

getLayerAsString

public String getLayerAsString(String layerName,
                               int start,
                               int length)

Parameters:

layerName -

start -

length -

Returns:

returns the tokens of the given layer name, joined by spaces, starting at the start position and ending at start+length

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object