Package com.gengoai.hermes

Class Relation

java.lang.Object

com.gengoai.hermes.Relation

All Implemented Interfaces:

Serializable

public final class Relation
extends Object
implements Serializable

Relations provide a mechanism to link two Annotations. Relations are directional, i.e. they have a source and a target, and form a directed graph between annotations on the document. Relations can represent any type of link, but often represent syntactic (e.g. dependency relations), semantic (e.g. semantic roles), or pragmatic (e.g. dialog acts) information. Relations, like attributes, are stored as key value pairs with the key being the RelationType and the value being a String representing the label. Relations are associated with individual annotations (i.e. tokens for dependency relations, entities for co-reference).

Author:

David B. Bracewell

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
Relation(@NonNull RelationType type, @NonNull String value, long target)	Instantiates a new Relation.

Method Summary

Modifier and Type	Method	Description
Annotation	getTarget(@NonNull HString hString)	Gets the target of the relation.

Methods inherited from class java.lang.Object

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

Constructor Detail

Relation

public Relation(@NonNull
                @NonNull RelationType type,
                @NonNull
                @NonNull String value,
                long target)

Instantiates a new Relation.

Parameters:

type - the relation type

value - the relation value

target - the id of the target relation

Method Detail

getTarget

public Annotation getTarget(@NonNull
                            @NonNull HString hString)

Gets the target of the relation.

Parameters:

hString - the HString to use identify the target annotation.

Returns:

the target annotation.