Package net.sf.tweety.logics.commons.syntax.interfaces

Interface LogicProgram<C extends Formula,P extends Formula,T extends Rule<?,?>>

Type Parameters:

C - The type of the formulas used for conclusions

P - The type of the formulas used for the premise

T - The type of the rules used in the program

All Superinterfaces:

BeliefBase

All Known Implementing Classes:

NLPProgram, Program

public interface LogicProgram<C extends Formula,P extends Formula,T extends Rule<?,?>>
extends BeliefBase

An interface for a logic program, which is a set of rules.

Author:

Tim Janus, Matthias Thimm

Method Summary

Modifier and Type	Method	Description
void	addFact(C fact)	Adds the given fact to the program
void	addFacts(C... facts)	Adds the given facts to the program
LogicProgram<?,?,?>	exchange(Term<?> v, Term<?> t)	Substitutes all occurrences of term "v" in this formula by term "t" and at the same time replaces all occurrences of term "t" by term "v" and eventually returns the new formula.
Signature	getMinimalSignature()	Returns the signature of the language of this knowledge base.
LogicProgram<?,?,?>	substitute(java.util.Map<? extends Term<?>,? extends Term<?>> map)	Substitutes all occurrences of all terms "v" in map.keyset() in this formula by map.get(v) and returns the new formula.
LogicProgram<?,?,?>	substitute(Term<?> v, Term<?> t)	Substitutes all occurrences of term "v" in this formula by term "t" and returns the new formula.
java.lang.String	toString()

Method Detail

addFact

void addFact(C fact)

Adds the given fact to the program

Parameters:

fact - a fact

addFacts

void addFacts(C... facts)

Adds the given facts to the program

Parameters:

facts -

getMinimalSignature

Signature getMinimalSignature()

Description copied from interface: BeliefBase

Returns the signature of the language of this knowledge base.

Specified by:

getMinimalSignature in interface BeliefBase

Returns:

the signature of the language of this knowledge base.

substitute

LogicProgram<?,?,?> substitute(Term<?> v,
                                           Term<?> t)
                                    throws java.lang.IllegalArgumentException

Substitutes all occurrences of term "v" in this formula by term "t" and returns the new formula.

Parameters:

v - the term to be substituted.

t - the term to substitute.

Returns:

a formula where every occurrence of "v" is replaced by "t".

Throws:

java.lang.IllegalArgumentException - if "v" and "t" are of different sorts

substitute

LogicProgram<?,?,?> substitute(java.util.Map<? extends Term<?>,? extends Term<?>> map)
                                    throws java.lang.IllegalArgumentException

Substitutes all occurrences of all terms "v" in map.keyset() in this formula by map.get(v) and returns the new formula.

Parameters:

map - a mapping defining which terms to be substituted.

Returns:

a formula where every term in map.keyset() has been replaced by map.get(v).

Throws:

java.lang.IllegalArgumentException - if any term and its mapping are of different sorts

exchange

LogicProgram<?,?,?> exchange(Term<?> v,
                                         Term<?> t)
                                  throws java.lang.IllegalArgumentException

Substitutes all occurrences of term "v" in this formula by term "t" and at the same time replaces all occurrences of term "t" by term "v" and eventually returns the new formula.

Parameters:

v - a term.

t - a term.

Returns:

a new logical formula with both "v" and "t" exchanged.

Throws:

java.lang.IllegalArgumentException - if "v" and "t" are of different sorts

toString

java.lang.String toString()

Specified by:

toString in interface BeliefBase

Overrides:

toString in class java.lang.Object