gate.annotation
Class AnnotationImpl

java.lang.Object
  gate.util.AbstractFeatureBearer
      gate.annotation.AnnotationImpl

All Implemented Interfaces:

Annotation, SimpleAnnotation, FeatureBearer, IdBearer, Serializable, Comparable

public class AnnotationImpl
extends AbstractFeatureBearer
implements Annotation, FeatureBearer, Comparable

Provides an implementation for the interface gate.Annotation

See Also:

Serialized Form

Field Summary

protected Node	end The end node
protected gate.annotation.AnnotationImpl.EventsHandler	eventHandler The listener for the events coming from the features.
protected Node	start The start node

Fields inherited from class gate.util.AbstractFeatureBearer

features

Constructor Summary

protected

AnnotationImpl(Integer id, Node start, Node end, String type, FeatureMap features) Constructor.

Method Summary

void	addAnnotationListener(AnnotationListener l) Adds an annotation listener
boolean	coextensive(Annotation anAnnot) Two Annotation are coextensive if their offsets are the same.
int	compareTo(Object o) Ordering
boolean	equals(Object obj) Returns true if two annotation are Equals.
protected void	fireAnnotationUpdated(AnnotationEvent e)
Node	getEndNode() The end node.
Integer	getId() The ID of the annotation.
Node	getStartNode() The start node.
String	getType() The type of the annotation (corresponds to TIPSTER "name").
int	hashCode() When equals called on two annotations returns true, is REQUIRED that the value hashCode for each annotation to be the same.
boolean	isCompatible(Annotation anAnnot) This verifies if this annotation is compatible with another one.
boolean	isCompatible(Annotation anAnnot, Set aFeatureNamesSet) This verifies if this annotation is compatible with another one, given a set with certain keys.
boolean	isPartiallyCompatible(Annotation anAnnot) This method verifies if two annotation and are partially compatible.
boolean	isPartiallyCompatible(Annotation anAnnot, Set aFeatureNamesSet) This method verifies if two annotation and are partially compatible, given a set with certain keys.
boolean	overlaps(Annotation aAnnot) This method tells if this overlaps aAnnot.
void	removeAnnotationListener(AnnotationListener l) Removes an annotation listener
void	setFeatures(FeatureMap features) Set the feature set.
String	toString() String representation of hte annotation

Methods inherited from class gate.util.AbstractFeatureBearer

getFeatures

Methods inherited from class java.lang.Object

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

Methods inherited from interface gate.util.FeatureBearer

getFeatures

Field Detail

eventHandler

protected gate.annotation.AnnotationImpl.EventsHandler eventHandler

The listener for the events coming from the features.

start

protected Node start

The start node

end

protected Node end

The end node

Constructor Detail

AnnotationImpl

protected AnnotationImpl(Integer id,
                         Node start,
                         Node end,
                         String type,
                         FeatureMap features)

Constructor. Package access - annotations have to be constructed via AnnotationSets.

Parameters:

id - The id of the new annotation;

start - The node from where the annotation will depart;

end - The node where trhe annotation ends;

type - The type of the new annotation;

features - The features of the annotation.

Method Detail

getId

public Integer getId()

The ID of the annotation.

Specified by:

getId in interface IdBearer

getType

public String getType()

The type of the annotation (corresponds to TIPSTER "name").

Specified by:

getType in interface SimpleAnnotation

getStartNode

public Node getStartNode()

The start node.

Specified by:

getStartNode in interface SimpleAnnotation

getEndNode

public Node getEndNode()

The end node.

Specified by:

getEndNode in interface SimpleAnnotation

toString

public String toString()

String representation of hte annotation

Overrides:

toString in class Object

compareTo

public int compareTo(Object o)
              throws ClassCastException

Ordering

Specified by:

compareTo in interface SimpleAnnotation

Specified by:

compareTo in interface Comparable

Throws:

ClassCastException

hashCode

public int hashCode()

When equals called on two annotations returns true, is REQUIRED that the value hashCode for each annotation to be the same. It is not required that when equals return false, the values to be different. For speed, it would be beneficial to happen that way.

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Returns true if two annotation are Equals. Two Annotation are equals if their offsets, types, id and features are the same.

Overrides:

equals in class Object

setFeatures

public void setFeatures(FeatureMap features)

Set the feature set. Overriden from the implementation in AbstractFeatureBearer because it needs to fire events

Specified by:

setFeatures in interface FeatureBearer

Overrides:

setFeatures in class AbstractFeatureBearer

isCompatible

public boolean isCompatible(Annotation anAnnot)

This verifies if this annotation is compatible with another one. Compatible means that they hit the same possition and the FeatureMap of this is incuded into aAnnot FeatureMap.

Specified by:

isCompatible in interface Annotation

Parameters:

anAnnot - a gate Annotation. If anAnnotation is null then false is returned.

Returns:

true if aAnnot is compatible with this and false otherwise.

isCompatible

public boolean isCompatible(Annotation anAnnot,
                            Set aFeatureNamesSet)

This verifies if this annotation is compatible with another one, given a set with certain keys. In this case, compatible means that they hit the same possition and those keys from this's FeatureMap intersected with aFeatureNamesSet are incuded together with their values into the aAnnot's FeatureMap.

Specified by:

isCompatible in interface Annotation

Parameters:

anAnnot - a gate Annotation. If param is null, it will return false.

aFeatureNamesSet - is a set containing certian key that will be intersected with this's FeatureMap's keys.If param is null then isCompatible(Annotation) will be called.

Returns:

true if aAnnot is compatible with this and false otherwise.

isPartiallyCompatible

public boolean isPartiallyCompatible(Annotation anAnnot)

This method verifies if two annotation and are partially compatible. Partially compatible means that they overlap and the FeatureMap of this is incuded into FeatureMap of aAnnot.

Specified by:

isPartiallyCompatible in interface Annotation

Parameters:

anAnnot - a gate Annotation.

Returns:

true if this is partially compatible with anAnnot and false otherwise.

isPartiallyCompatible

public boolean isPartiallyCompatible(Annotation anAnnot,
                                     Set aFeatureNamesSet)

This method verifies if two annotation and are partially compatible, given a set with certain keys. In this case, partially compatible means that they overlap and those keys from this's FeatureMap intersected with aFeatureNamesSet are incuded together with their values into the aAnnot's FeatureMap.

Specified by:

isPartiallyCompatible in interface Annotation

Parameters:

anAnnot - a gate Annotation. If param is null, the method will return false.

aFeatureNamesSet - is a set containing certian key that will be intersected with this's FeatureMap's keys.If param is null then isPartiallyCompatible(Annotation) will be called.

Returns:

true if this is partially compatible with aAnnot and false otherwise.

coextensive

public boolean coextensive(Annotation anAnnot)

Two Annotation are coextensive if their offsets are the same.

Specified by:

coextensive in interface Annotation

Parameters:

anAnnot - A Gate annotation.

Returns:

true if two annotation hit the same possition and false otherwise

overlaps

public boolean overlaps(Annotation aAnnot)

This method tells if this overlaps aAnnot.

Specified by:

overlaps in interface Annotation

Parameters:

aAnnot - a gate Annotation.

Returns:

true if they overlap and false false if they don't.

removeAnnotationListener

public void removeAnnotationListener(AnnotationListener l)

Removes an annotation listener

Specified by:

removeAnnotationListener in interface Annotation

addAnnotationListener

public void addAnnotationListener(AnnotationListener l)

Adds an annotation listener

Specified by:

addAnnotationListener in interface Annotation

fireAnnotationUpdated

protected void fireAnnotationUpdated(AnnotationEvent e)

Parameters:

e -