slib.graph.algo.utils

Enum GActionType

java.lang.Object

java.lang.Enum<GActionType>

slib.graph.algo.utils.GActionType

All Implemented Interfaces:

Serializable, Comparable<GActionType>

public enum GActionType
extends Enum<GActionType>

Enumeration used to represent the various types of actions which can be applied to a graph.

Author:

Sébastien Harispe

Enum Constant Summary

Enum Constants

Enum Constant and Description
PREDICATE_SUBSTITUTE Can be used to substitute the predicate of all the triplets with a specific predicate.
REROOTING Root the graph according to the rdfs:subClassOf relationship.
TRANSITIVE_REDUCTION Perform a transitive reduction of the relationships RDFS.SUBCLASSOF and/or RDF.TYPE - this treatment removes the relationships which can be removed according to the transitivity of the predicate rdfs:subClassOf.
VERTICES_REDUCTION Remove of the set of vertices composing the graph.

Method Summary

Methods

Modifier and Type	Method and Description
static GActionType	valueOf(String name) Returns the enum constant of this type with the specified name.
static GActionType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

TRANSITIVE_REDUCTION

public static final GActionType TRANSITIVE_REDUCTION

Perform a transitive reduction of the relationships RDFS.SUBCLASSOF and/or RDF.TYPE - this treatment removes the relationships which can be removed according to the transitivity of the predicate rdfs:subClassOf. You can specify the type of relationships on which the treatment must be performed using the parameter "target" with value:

• CLASSES or rdfs:subClassOf or RDFS.SUBCLASSOF (upper or lower case) to remove relationships rdfs:subClassOf which can be inferred
• INSTANCES or rdf:type or RDF.TYPE (upper or lower case) to remove relationships rdf:type which can be inferred
• you can use both using a comma separator setting "CLASSES,INSTANCES"

REROOTING

public static final GActionType REROOTING

Root the graph according to the rdfs:subClassOf relationship. For each URI x which is involved in a statement in which the predicate rdfs:subClassOf is used, if no statement x rdfs:subClassOf y exists, x is considered to refer to a root. In this treatment, for each root x a statement x rdfs:subClassOf new_root is created. The value of new_root can be defined automatically or manually see below. The root URI can be specified using the parameter "root_uri":

• the value must refer to the URI to consider for the root. It can be an URI which is not already used in the graph.
• "__FICTIVE__" as value will be substituted by OWL.THING, i.e. refers to the OWL vocabulary in the Sesame API

VERTICES_REDUCTION

public static final GActionType VERTICES_REDUCTION

Remove of the set of vertices composing the graph. Accepted parameters are:

• regex: specify a REGEX in Java syntax which will be used to test if the value associated to a vertex makes it eligible to be removed. If the value match the REGEX, the vertex will be removed
• vocabulary: Remove all the vertices associated to the vocabularies specified. Accepted vocabularies flag are RDF, RDFS, OWL. Several vocabularies can be specified using comma separator.
• file_uris: specify a list of files containing URIs corresponding to the vertices to remove. Multiple files can be specified using comma separator.

PREDICATE_SUBSTITUTE

public static final GActionType PREDICATE_SUBSTITUTE

Can be used to substitute the predicate of all the triplets with a specific predicate. parameters expected:

• old_uri: the URI predicate to replace
• new_uri: the new URI predicate

You can use RDFS.SUBCLASSOF to refer to http://www.w3.org/2000/01/rdf-schema#subClassOf

Method Detail

values

public static GActionType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (GActionType c : GActionType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static GActionType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null