edu.stanford.nlp.trees

Interface Dependency<G extends Label,D extends Label,N>

All Superinterfaces:

java.io.Serializable

All Known Implementing Classes:

CollinsDependency, NamedDependency, UnnamedConcreteDependency, UnnamedDependency

public interface Dependency<G extends Label,D extends Label,N>
extends java.io.Serializable

An individual dependency between a governor and a dependent. The governor and dependent are represented as a Label. For example, these can be a Word or a WordTag. If one wishes the dependencies to preserve positions in a sentence, then each can be a LabeledConstituent or CoreLabel. Dependencies support an Object naming the dependency type. This may be null. Dependencies have factories.

Author:

Christopher Manning

Method Summary

Modifier and Type	Method and Description
DependencyFactory	dependencyFactory() Provide a factory for this kind of dependency
D	dependent() Describes the dependent (argument/modifier) of the dependency relation.
boolean	equalsIgnoreName(java.lang.Object o) Are two dependencies equal if you ignore the dependency name.
G	governor() Describes the governor (regent/head) of the dependency relation.
N	name() Names the type of dependency (subject, instrument, ...).
java.lang.String	toString(java.lang.String format) Provide different printing options via a String keyword.

Method Detail

governor

G governor()

Describes the governor (regent/head) of the dependency relation.

Returns:

The governor of this dependency

dependent

D dependent()

Describes the dependent (argument/modifier) of the dependency relation.

Returns:

the dependent of this dependency

name

N name()

Names the type of dependency (subject, instrument, ...). This might be a String in the simplest case, but can provide for arbitrary object types.

Returns:

the name for this dependency type

equalsIgnoreName

boolean equalsIgnoreName(java.lang.Object o)

Are two dependencies equal if you ignore the dependency name.

Parameters:

o - The thing to compare against ignoring name

Returns:

true iff the head and dependent are the same.

toString

java.lang.String toString(java.lang.String format)

Provide different printing options via a String keyword. The main recognized option currently is "xml". Otherwise the default toString() is used.

Parameters:

format - A format string, either "xml" or you get the default

Returns:

A String representation of the dependency

dependencyFactory

DependencyFactory dependencyFactory()

Provide a factory for this kind of dependency

Returns:

A DependencyFactory