Class BasePredicateList

java.lang.Object
org.apache.commons.functor.core.composite.BasePredicateList
All Implemented Interfaces:
Serializable, Functor, NullaryFunctor, Predicate
Direct Known Subclasses:
And, Or
abstract class BasePredicateList extends Object implements Predicate, Serializable
Abstract base class for Predicates composed of a list of Predicates.

Note that although this class implements Serializable, a given instance will only be truly Serializable if all the underlying functors are. Attempts to serialize an instance whose delegates are not all Serializable will result in an exception.

Version:
$Revision$ $Date$

  • Field Details

    • serialVersionUID

      private static final long serialVersionUID
      serialVersionUID declaration.
      See Also:

    • list

      private final List<Predicate> list
      A list where storing the adapted predicates.

  • Constructor Details

    • BasePredicateList

      protected BasePredicateList()
      Create a new BasePredicateList instance.

    • BasePredicateList

      protected BasePredicateList(Predicate... predicates)
      Create a new BasePredicateList instance.
      Parameters:
      predicates - to add

    • BasePredicateList

      protected BasePredicateList(Iterable<Predicate> predicates)
      Create a new BasePredicateList instance.
      Parameters:
      predicates - to add

  • Method Details

    • equals

      public abstract boolean equals(Object that)
      Indicates whether some other object is "equal to" this functor. This method must adhere to general Object.equals contract. Additionally, this method can return true only if the specified Object implements the same functor interface and is known to produce the same results and/or side-effects for the same arguments (if any).

      While implementators are strongly encouraged to override the default Object implementation of this method, note that the default Object implementation does in fact adhere to the functor equals contract.

      Specified by:
      equals in interface Functor
      Overrides:
      equals in class Object
      Parameters:
      that - the object to compare this functor to
      Returns:
      true iff the given object implements this functor interface, and is known to produce the same results and/or side-effects for the same arguments (if any).
      See Also:

    • hashCode

      public abstract int hashCode()
      Returns a hash code for this functor adhering to the general Object.hashCode contract. Implementators are strongly encouraged but not strictly required to override the default Object implementation of this method.
      Specified by:
      hashCode in interface Functor
      Overrides:
      hashCode in class Object
      Returns:
      a hash code for this functor
      See Also:

    • toString

      public abstract String toString()
      Returns a human readable description of this functor. Implementators are strongly encouraged but not strictly required to override the default Object implementation of this method.
      Specified by:
      toString in interface Functor
      Overrides:
      toString in class Object
      Returns:
      a human readable description of this functor

    • addPredicate

      protected void addPredicate(Predicate p)
      Add a Predicate to the list.
      Parameters:
      p - Predicate to add

    • getPredicateList

      protected List<Predicate> getPredicateList()
      Get the "live" list of Predicates.
      Returns:
      List

    • getPredicateListEquals

      protected boolean getPredicateListEquals(BasePredicateList that)
      Learn whether the list of another BasePredicateList is equal to my list.
      Parameters:
      that - BasePredicateList to test
      Returns:
      boolean

    • getPredicateListHashCode

      protected int getPredicateListHashCode()
      Get a hashCode for my list.
      Returns:
      int

    • getPredicateListToString

      protected String getPredicateListToString()
      Get a toString for my list.
      Returns:
      String