MultipleBaseContractionOperator

java.lang.Object
- net.sf.tweety.beliefdynamics.MultipleBaseContractionOperator<T>

Type Parameters:

T - The type of formulas that this operator works on.

All Implemented Interfaces:

BaseContractionOperator<T>

Direct Known Subclasses:

KernelContractionOperator
```
public abstract class MultipleBaseContractionOperator<T extends Formula>
extends java.lang.Object
implements BaseContractionOperator<T>
```
This is the interface for a classic multiple belief base contraction operator, ie. an operator that takes some set of formulas and another set of formulas and contracts the former by the latter.

Author:

Matthias Thimm

Constructor Summary

Constructors
Constructor Description

MultipleBaseContractionOperator()

Method Summary

Modifier and Type	Method	Description
`abstract java.util.Collection<T>`	`contract(java.util.Collection<T> base, java.util.Collection<T> formulas)`	Contracts the first collection of formulas by the second collection of formulas.
`java.util.Collection<T>`	`contract(java.util.Collection<T> base, T formula)`	Contracts the given collection of formulas by the given formula.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - MultipleBaseContractionOperator
```
public MultipleBaseContractionOperator()
```
- Method Detail
  - contract
```
public java.util.Collection<T> contract(java.util.Collection<T> base,
                                        T formula)
```
    Description copied from interface: BaseContractionOperator
    
    Contracts the given collection of formulas by the given formula.
    
    Specified by:
    
    contract in interface BaseContractionOperator<T extends Formula>
    
    Parameters:
    
    base - some collection of formulas.
    
    formula - a formula
    
    Returns:
    
    the contracted collection.
  - contract
```
public abstract java.util.Collection<T> contract(java.util.Collection<T> base,
                                                 java.util.Collection<T> formulas)
```
    Contracts the first collection of formulas by the second collection of formulas.
    
    Parameters:
    
    base - some collection of formulas.
    
    formulas - some formulas.
    
    Returns:
    
    the contracted collection.