DirectDefeat

java.lang.Object
- net.sf.tweety.arg.deductive.semantics.attacks.DirectDefeat

All Implemented Interfaces:

Attack
```
public class DirectDefeat
extends java.lang.Object
implements Attack
```
This attack notion models the direct defeat relation; A is defeated by B iff there is c in support(A) with claim(B) |- \neg c.

Author:

Matthias Thimm

Method Summary

Modifier and Type	Method	Description
`static DirectDefeat`	`getInstance()`	Returns the singleton instance of this class.
`boolean`	`isAttackedBy(DeductiveArgument a, DeductiveArgument b)`	Returns "true" iff the first argument is attacked by the second argument.

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

- Method Detail
  - getInstance
```
public static DirectDefeat getInstance()
```
    Returns the singleton instance of this class.
    
    Returns:
    
    the singleton instance of this class.
  - isAttackedBy
```
public boolean isAttackedBy(DeductiveArgument a,
                            DeductiveArgument b)
```
    Description copied from interface: Attack
    
    Returns "true" iff the first argument is attacked by the second argument.
    
    Specified by:
    
    isAttackedBy in interface Attack
    
    Parameters:
    
    a - some argument
    
    b - some argument
    
    Returns:
    
    "true" iff a is attacked by b.