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## weka.associations.tertius
Class Literal

    java.lang.Object
      weka.associations.tertius.Literal

All Implemented Interfaces:
  java.io.Serializable, RevisionHandler

Direct Known Subclasses:
  AttributeValueLiteral

    public abstract class Literal

extends java.lang.Object
implements java.io.Serializable, RevisionHandler

Version:
  $Revision: 1.5 $
Author:
  Peter A. Flach, Nicolas Lachiche
See Also:
  Serialized Form

Field Summary
`static int` | `NEG`
`static int` | `POS`

Constructor Summary
`Literal(Predicate predicate, int sign, int missing)`

Method Summary
`Literal` | `getNegation()`
`Predicate` | `getPredicate()`
`abstract boolean` | `negationSatisfies(Instance instance)`
`boolean` | `negative()`
`boolean` | `positive()`
`abstract boolean` | `satisfies(Instance instance)`
`void` | `setNegation(Literal negation)`
`abstract java.lang.String` | `toString()`

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

Methods inherited from interface weka.core.RevisionHandler
`getRevision`

Field Detail

### NEG

    public static final int NEG

See Also:
  Constant Field Values

### POS

    public static final int POS

See Also:
  Constant Field Values

Constructor Detail

### Literal

    public Literal(Predicate predicate,
                   int sign,
                   int missing)

Method Detail

### getPredicate

    public Predicate getPredicate()

### getNegation

    public Literal getNegation()

### setNegation

    public void setNegation(Literal negation)

### positive

    public boolean positive()

### negative

    public boolean negative()

### satisfies

    public abstract boolean satisfies(Instance instance)

### negationSatisfies

    public abstract boolean negationSatisfies(Instance instance)

### toString

    public abstract java.lang.String toString()

  Overrides:
    `toString` in class `java.lang.Object`

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