org.dllearner.core.owl
Class BooleanValueRestriction

java.lang.Object
  org.dllearner.core.owl.Description
      org.dllearner.core.owl.Restriction
          org.dllearner.core.owl.ValueRestriction
              org.dllearner.core.owl.DatatypeValueRestriction
                  org.dllearner.core.owl.BooleanValueRestriction

All Implemented Interfaces:

Serializable, Cloneable, KBElement, PropertyRange

public class BooleanValueRestriction
extends DatatypeValueRestriction

Convenience class for boolean value restrictions.

Author:

Jens Lehmann

See Also:

Serialized Form

Constructor Summary

BooleanValueRestriction(DatatypeProperty restrictedPropertyExpression, Boolean value)
TODO: Internally a typed constant with datatype boolean and strings "true" or "false" is created.

Method Summary

boolean	getBooleanValue()
int	getLength() Boolean value restrictions have length 2, because they encode two pieces of information: the property and the boolean value.
String	toKBSyntaxString(String baseURI, Map<String,String> prefixes)

Methods inherited from class org.dllearner.core.owl.DatatypeValueRestriction

accept, accept, getArity, getRestrictedPropertyExpression, getValue, toManchesterSyntaxString, toString

Methods inherited from class org.dllearner.core.owl.Description

addChild, addChild, clone, getChild, getChildren, getDepth, getNumberOfNodes, getParent, getSubtree, isRoot, removeChild, removeChild, replaceChild, setParent, toKBSyntaxString, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

BooleanValueRestriction

public BooleanValueRestriction(DatatypeProperty restrictedPropertyExpression,
                               Boolean value)

TODO: Internally a typed constant with datatype boolean and strings "true" or "false" is created. This is a clean way to implement boolean value restrictions. However, if they are created millions of times during the run of an algorithm, this may cause unnecessary delays. Possible Solution: It may be good to create a BooleanConstant class, which just holds the boolean value and only performs operations when requested.

Parameters:

restrictedPropertyExpression -

value -

Method Detail

getBooleanValue

public boolean getBooleanValue()

getLength

public int getLength()

Boolean value restrictions have length 2, because they encode two pieces of information: the property and the boolean value.

Returns:

The syntactic length of the KB element, defined as the number of syntactic constructs not including brackets.

toKBSyntaxString

public String toKBSyntaxString(String baseURI,
                               Map<String,String> prefixes)

Specified by:

toKBSyntaxString in interface KBElement

Overrides:

toKBSyntaxString in class DatatypeValueRestriction