Package owl.ltl

## Class Literal

- java.lang.Object
- - owl.ltl.AbstractFormula
  - - owl.ltl.Literal

- All Implemented Interfaces:
    `Formula`

      public final class Literal
      extends AbstractFormula

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `Literal​(int index)` |
    `Literal​(int index, boolean negate)` |

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `<A,B> A` | `accept​(BinaryVisitor<B,A> v, B parameter)` |
    `int` | `accept​(IntVisitor v)` |
    `<R> R` | `accept​(Visitor<R> v)` |
    `boolean` | `allMatch​(Predicate<Formula> predicate)` |
    `boolean` | `anyMatch​(Predicate<Formula> predicate)` |
    `protected boolean` | `equals2​(AbstractFormula o)` |
    `int` | `getAtom()` |
    `protected int` | `hashCodeOnce()` |
    `boolean` | `isNegated()` |
    `boolean` | `isPureEventual()` |
    `boolean` | `isPureUniversal()` |
    `boolean` | `isSuspendable()` |
    `Formula` | `nnf()` |
    `Literal` | `not()` | Syntactically negate this formula.
    `static Literal` | `of​(int index, boolean negate)` |
    `Formula` | `temporalStep​(BitSet valuation)` | Do a single temporal step.
    `Formula` | `temporalStepUnfold​(BitSet valuation)` | Short-cut operation to avoid intermediate construction of formula ASTs.
    `String` | `toString()` |
    `Formula` | `unfold()` |
    `Formula` | `unfoldTemporalStep​(BitSet valuation)` | Short-cut operation to avoid intermediate construction of formula ASTs.

    - ### Methods inherited from class owl.ltl.AbstractFormula

      `equals, hashCode`

    - ### Methods inherited from class java.lang.Object

      `clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### Literal

          public Literal​(@Nonnegative
                         int index)

    - #### Literal

          public Literal​(@Nonnegative
                         int index,
                         boolean negate)

  - ### Method Detail

    - #### of

          public static Literal of​(int index,
                                   boolean negate)

    - #### accept

          public int accept​(IntVisitor v)

    - #### accept

          public <R> R accept​(Visitor<R> v)

    - #### accept

          public <A,B> A accept​(BinaryVisitor<B,A> v,
                                B parameter)

    - #### allMatch

          public boolean allMatch​(Predicate<Formula> predicate)

    - #### anyMatch

          public boolean anyMatch​(Predicate<Formula> predicate)

    - #### equals2

          protected boolean equals2​(AbstractFormula o)

      Specified by:
        `equals2` in class `AbstractFormula`

    - #### getAtom

          public int getAtom()

    - #### hashCodeOnce

          protected int hashCodeOnce()

      Specified by:
        `hashCodeOnce` in class `AbstractFormula`

    - #### isNegated

          public boolean isNegated()

    - #### isPureEventual

          public boolean isPureEventual()

    - #### isPureUniversal

          public boolean isPureUniversal()

    - #### isSuspendable

          public boolean isSuspendable()

    - #### nnf

          public Formula nnf()

    - #### not

          public Literal not()

      Description copied from interface: `Formula`
      Syntactically negate this formula.

      If this formula is in NNF, the returned negation will also be in NNF.

      Returns:
        the negation of this formula.

    - #### temporalStep

          public Formula temporalStep​(BitSet valuation)

      Description copied from interface: `Formula`
      Do a single temporal step. This means that one layer of X-operators is removed and literals are replaced by their valuations.

    - #### temporalStepUnfold

          public Formula temporalStepUnfold​(BitSet valuation)

      Description copied from interface: `Formula`
      Short-cut operation to avoid intermediate construction of formula ASTs.

    - #### toString

          public String toString()

      Overrides:
        `toString` in class `Object`

    - #### unfold

          public Formula unfold()

    - #### unfoldTemporalStep

          public Formula unfoldTemporalStep​(BitSet valuation)

      Description copied from interface: `Formula`
      Short-cut operation to avoid intermediate construction of formula ASTs.