org.universAAL.middleware.owl

Class BoundedValueRestriction

java.lang.Object

org.universAAL.middleware.rdf.Resource

org.universAAL.middleware.owl.TypeExpression

org.universAAL.middleware.owl.TypeRestriction

org.universAAL.middleware.owl.BoundedValueRestriction

Direct Known Subclasses:

DoubleRestriction, FloatRestriction, IndividualRestriction, IntRestriction, LongRestriction

public abstract class BoundedValueRestriction
extends TypeRestriction

Base class for all TypeRestrictions that define a minimum or maximum value on a given data type. Implementation of XSD Value Restrictions: it contains all literals that meet the specified conditions. These conditions are either:

1. min inclusive
2. min exclusive
3. max inclusive
4. max exclusive

It is possible to define a condition on the minimum value and on the maximum value in the same BoundedValueRestriction.

Sub classes provide helper methods for specific data types.

Author:

Carsten Stockloew

Nested Class Summary

Nested classes/interfaces inherited from class org.universAAL.middleware.owl.TypeRestriction

TypeRestriction.Facet

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	XSD_FACET_MAX_EXCLUSIVE URI for the facet xsd:maxExclusive.
protected static String	XSD_FACET_MAX_INCLUSIVE URI for the facet xsd:maxInclusive.
protected static String	XSD_FACET_MIN_EXCLUSIVE URI for the facet xsd:minExclusive.
protected static String	XSD_FACET_MIN_INCLUSIVE URI for the facet xsd:minInclusive.

Fields inherited from class org.universAAL.middleware.owl.TypeRestriction

PROP_OWL_ON_DATATYPE, PROP_OWL_WITH_RESTRICTIONS, restrictions, XSD_FACET_PATTERN

Fields inherited from class org.universAAL.middleware.owl.TypeExpression

EXCEPTION_TTL, OWL_CLASS, OWL_NAMESPACE, PROP_RDFS_SUB_CLASS_OF, RDFS_DATATYPE, TYPE_OWL_THING

Fields inherited from class org.universAAL.middleware.rdf.Resource

ANON_URI_PREFIX, blockAddingTypes, isXMLLiteral, NAMESPACE_PREFIX, ns_delim_index, PROP_INVOLVED_HUMAN_USER, PROP_RDF_FIRST, PROP_RDF_REST, PROP_RDF_TYPE, PROP_RDFS_COMMENT, PROP_RDFS_LABEL, PROP_SERIALIZATION_FULL, PROP_SERIALIZATION_OPTIONAL, PROP_SERIALIZATION_REDUCED, PROP_SERIALIZATION_UNDEFINED, props, RDF_EMPTY_LIST, RDF_NAMESPACE, RDFS_NAMESPACE, SERVICE_NAMESPACE, TYPE_RDF_LIST, TYPE_RDFS_CLASS, uri, VOCABULARY_NAMESPACE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	BoundedValueRestriction(String datatypeURI) Standard constructor.
protected	BoundedValueRestriction(String datatypeURI, Object min, boolean minInclusive, Object max, boolean maxInclusive) Constructor.

Method Summary

Modifier and Type	Method and Description
protected boolean	checkType(Object o) Determines whether the type of the given object is valid.
protected TypeExpression	copyTo(BoundedValueRestriction copy) Copy the facets for min and max to a different BoundedValueRestriction.
Comparable<?>	getLowerbound() Returns the minimum value.
Comparable<?>	getUpperbound() Returns the maximum value.
boolean	hasMember(Object member, HashMap context, int ttl, List<MatchLogEntry> log) Returns true if the given object is a member of the class represented by this type expression, otherwise false.
boolean	isDisjointWith(TypeExpression other, HashMap context, int ttl, List<MatchLogEntry> log) Returns true if the given type expression has no member in common with the class represented by this type expression, otherwise false.
boolean	isWellFormed() Returns true, if the state of the resource is valid, otherwise false.
boolean	matches(TypeExpression subset, HashMap context, int ttl, List<MatchLogEntry> log) Returns true if the given type expression is a subset of the class represented by this type expression, otherwise false.
boolean	setProperty(String propURI, Object o) Adds a statement with this resource as the subject, the given propURI as the predicate and the given value as the object.

Methods inherited from class org.universAAL.middleware.owl.TypeRestriction

addConstrainingFacet, copyTo, getMemberValueToCheck, getNamedSuperclasses, getNext, getPrevious, getTypeURI, getUpperEnumeration, hasMember, iterate, matches, resolveVarByGreaterEqual, resolveVarByLessEqual, setFacet, setPattern

Methods inherited from class org.universAAL.middleware.owl.TypeExpression

checkTTL, collectTypesMinimized, copy, getDefaultMatchmakingTTL, hasMember, hasMember, isDisjointWith, isDisjointWith, matches, matches, synchronize

Methods inherited from class org.universAAL.middleware.rdf.Resource

addMultiLangProp, addType, asList, asList, asRDFList, changeProperty, copy, deepCopy, equals, generateAnonURI, getDefaultLang, getFilename, getLocalName, getMultiLangProp, getNamespace, getOrConstructLabel, getOrConstructLabel, getProperty, getPropertyURIs, getPropSerializationType, getResource, getResourceComment, getResourceLabel, getResourceLabel, getStaticFieldValue, getType, getTypes, getURI, hashCode, hasProperty, hasQualifiedName, isAnon, isAnon, isBlockingAddingTypes, isClosedCollection, isQualifiedName, literal, numberOfProperties, representsQualifiedURI, serializesAsXMLLiteral, setPropertyPath, setPropertyPath, setPropertyPathFromOffset, setResourceComment, setResourceLabel, toString, toStringRecursive, toStringRecursive, unliteral

Methods inherited from class java.lang.Object

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

Field Detail

XSD_FACET_MIN_INCLUSIVE

protected static final String XSD_FACET_MIN_INCLUSIVE

URI for the facet xsd:minInclusive.

XSD_FACET_MAX_INCLUSIVE

protected static final String XSD_FACET_MAX_INCLUSIVE

URI for the facet xsd:maxInclusive.

XSD_FACET_MIN_EXCLUSIVE

protected static final String XSD_FACET_MIN_EXCLUSIVE

URI for the facet xsd:minExclusive.

XSD_FACET_MAX_EXCLUSIVE

protected static final String XSD_FACET_MAX_EXCLUSIVE

URI for the facet xsd:maxExclusive.

Constructor Detail

BoundedValueRestriction

protected BoundedValueRestriction(String datatypeURI)

Standard constructor.

Parameters:

datatypeURI - URI of the data type for which this restriction is defined. Must be one of the supported data types.

BoundedValueRestriction

protected BoundedValueRestriction(String datatypeURI,
                                  Object min,
                                  boolean minInclusive,
                                  Object max,
                                  boolean maxInclusive)

Constructor.

Parameters:

datatypeURI - URI of the data type for which this restriction is defined. Must be one of the supported data types.

min - The minimum value, or a Variable, or null if no minimum is defined.

minInclusive - True, if the minimum value is included. Ignored, if min is null.

max - The maximum value, or a Variable, or null if no maximum is defined.

maxInclusive - True, if the maximum value is included. Ignored, if max is null.

Method Detail

checkType

protected boolean checkType(Object o)

Determines whether the type of the given object is valid. Sub classes should override this method to check for their type and call super to check whether it is a Variable.

Parameters:

o - The object to check.

Returns:

true, if the type is valid.

copyTo

protected TypeExpression copyTo(BoundedValueRestriction copy)

Copy the facets for min and max to a different BoundedValueRestriction.

Parameters:

copy - The object to which to copy the facets.

Returns:

the value given as parameter, but with the restrictions copied.

See Also:

TypeExpression.copy()

getLowerbound

public Comparable<?> getLowerbound()

Returns the minimum value.

Returns:

the minimum value, or null if not defined or an instance of Variable.

getUpperbound

public Comparable<?> getUpperbound()

Returns the maximum value.

Returns:

the maximum value, or null if not defined or an instance of Variable.

setProperty

public boolean setProperty(String propURI,
                           Object o)

Description copied from class: Resource

Adds a statement with this resource as the subject, the given propURI as the predicate and the given value as the object. Subclasses must override this in order to decide if the statement to be added fits the general class constraints. If not, the call of this method should be ignored. For each property only one single call may be made to this method, unless subsequent calls to this method for setting the value of the same property are treated as an update for an update-able property. Multi-valued properties must be set using an instance of List. The differentiation, if a such list should be treated as an rdf:List, can be made with the help of Resource.isClosedCollection(String). The default implementation here accepts all property-value pairs blindly except for rdf:type which is handled if the value is a type URI, a Resource or a java.util.List of them.

Note: The setting of the property rdf:type is being handled by this class via the final methods Resource.addType(String, boolean), Resource.getType(), and Resource.getTypes(). Although these methods give the view of handling type URIs as strings, but in reality the types are stored as direct instances of this class. So, the subclasses should ignore calls for setting rdf:type; if not, then the subclass must pay attention that the value should be a List of direct instances of this class so that (1) the Resource.toString() method returns just the URI and (2) the serializers get no problems with the value. Also, settings via subclasses may be overwritten by this class if a subsequent call to Resource.addType(String, boolean) is made.

Overrides:

setProperty in class TypeRestriction

Returns:

true if the property changed as a result of the call

hasMember

public boolean hasMember(Object member,
                         HashMap context,
                         int ttl,
                         List<MatchLogEntry> log)

Description copied from class: TypeExpression

Returns true if the given object is a member of the class represented by this type expression, otherwise false. The context table maps the URIs of certain variables onto values currently assigned to them. The variables are either standard variables managed by the universAAL middleware or parameters of a specific service in whose context this method is called. Both the object whose membership is going to be checked and this type expression may contain references to such variables. If there is already a value assigned to such a referenced variable, it must be replaced by the associated value, otherwise this method may expand the context table by deriving a value for such unassigned but referenced variables with which the membership can be asserted. In case of returning true, the caller must check the size of the context table to see if new conditions are added in order for the membership to be asserted. If the context table is null, the method does a global and unconditional check.

Overrides:

hasMember in class TypeRestriction

Parameters:

member - the object whose membership is going to be checked

context - context of the matchmaking. May be null.

ttl - time-to-live parameter

log - list that can be filled with log entries. May be null.

Returns:

true if the specified member is a member of this type expression

See Also:

org.universAAL.middleware.util.Constants#VAR_ACCESSING_BUS_MEMBER, org.universAAL.middleware.util.Constants#VAR_ACCESSING_HUMAN_USER, org.universAAL.middleware.util.Constants#VAR_CURRENT_DATETIME, org.universAAL.middleware.util.Constants#VAR_SERVICE_TO_SELECT

isDisjointWith

public boolean isDisjointWith(TypeExpression other,
                              HashMap context,
                              int ttl,
                              List<MatchLogEntry> log)

Description copied from class: TypeExpression

Returns true if the given type expression has no member in common with the class represented by this type expression, otherwise false. The context table maps the URIs of certain variables onto values currently assigned to them. The variables are either standard variables managed by the universAAL middleware or parameters of a specific service in whose context this method is called. Both of the type expressions may contain references to such variables. If there is already a value assigned to such a referenced variable, it must be replaced by the associated value, otherwise this method may expand the context table by deriving a value for such unassigned but referenced variables with which the disjointness of the two classes can be asserted. In case of returning true, the caller must check the size of the context table to see if new conditions are added in order for the disjointness to be asserted. If the context table is null, the method does a global and unconditional check.

Specified by:

isDisjointWith in class TypeExpression

Parameters:

other - the type expression with which the disjointness is going to be checked

context - context of the matchmaking. May be null.

ttl - time-to-live parameter

log - list that can be filled with log entries. May be null.

Returns:

true if the given type expression has no member in common with the class represented by this type expression, otherwise false

See Also:

org.universAAL.middleware.util.Constants#VAR_ACCESSING_BUS_MEMBER, org.universAAL.middleware.util.Constants#VAR_ACCESSING_HUMAN_USER, org.universAAL.middleware.util.Constants#VAR_CURRENT_DATETIME, org.universAAL.middleware.util.Constants#VAR_SERVICE_TO_SELECT

isWellFormed

public boolean isWellFormed()

Description copied from class: TypeExpression

Returns true, if the state of the resource is valid, otherwise false. Redefined in this class as abstract to force subclasses to override it.

Specified by:

isWellFormed in class TypeExpression

See Also:

Resource.isWellFormed()

matches

public boolean matches(TypeExpression subset,
                       HashMap context,
                       int ttl,
                       List<MatchLogEntry> log)

Description copied from class: TypeExpression

Returns true if the given type expression is a subset of the class represented by this type expression, otherwise false. The context table maps the URIs of certain variables onto values currently assigned to them. The variables are either standard variables managed by the universAAL middleware or parameters of a specific service in whose context this method is called. Both of the type expressions may contain references to such variables. If there is already a value assigned to such a referenced variable, it must be replaced by the associated value, otherwise this method may expand the context table by deriving a value for such unassigned but referenced variables with which the compatibility of the two classes can be asserted. In case of returning true, the caller must check the size of the context table to see if new conditions are added in order for the compatibility to be asserted. If the context table is null, the method does a global and unconditional check.

Specified by:

matches in class TypeExpression

Parameters:

subset - the type expression with which the compatibility is going to be checked

context - context of the matchmaking. May be null.

ttl - time-to-live parameter

log - list that can be filled with log entries. May be null.

Returns:

true if the given type expression is a subset of the class represented by this type expression, otherwise false

See Also:

org.universAAL.middleware.util.Constants#VAR_ACCESSING_BUS_MEMBER, org.universAAL.middleware.util.Constants#VAR_ACCESSING_HUMAN_USER, org.universAAL.middleware.util.Constants#VAR_CURRENT_DATETIME, org.universAAL.middleware.util.Constants#VAR_SERVICE_TO_SELECT