Module org.apache.jena.arq
Package org.apache.jena.sparql.engine.binding

Class BindingBase

java.lang.Object
org.apache.jena.sparql.engine.binding.BindingBase
All Implemented Interfaces:
Binding
Direct Known Subclasses:
Binding0, Binding1, Binding2, Binding3, Binding4, BindingOverMap, BindingProjectBase
public abstract class BindingBase extends Object implements Binding
Machinery encapsulating a mapping from a name to a value. The "parent" is a shared, immutable, common set of bindings. An association of var/node must not override a setting in the parent.

  • Method Details

    • vars

      public final Iterator<Var> vars()
      Description copied from interface: Binding
      Iterate over all variables of this binding.
      Specified by:
      vars in interface Binding

    • varsMentioned

      public final Set<Var> varsMentioned()
      Description copied from interface: Binding
      Collect all variables of this binding.
      Specified by:
      varsMentioned in interface Binding

    • forEach

      public void forEach(BiConsumer<Var,org.apache.jena.graph.Node> action)
      Operate on each entry.
      Specified by:
      forEach in interface Binding

    • size

      public final int size()
      Description copied from interface: Binding
      Number of (var, value) pairs.
      Specified by:
      size in interface Binding

    • isEmpty

      public boolean isEmpty()
      Description copied from interface: Binding
      Is this an empty binding? No variables.
      Specified by:
      isEmpty in interface Binding

    • contains

      public final boolean contains(Var var)
      Test whether a name is bound to some object
      Specified by:
      contains in interface Binding

    • get

      public final org.apache.jena.graph.Node get(Var var)
      Return the object bound to a name, or null
      Specified by:
      get in interface Binding

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • format1

      public void format1(StringBuilder sbuff)

    • toString1

      public String toString1()

    • hashCode

      public int hashCode()
      Specified by:
      hashCode in interface Binding
      Overrides:
      hashCode in class Object

    • equals

      public boolean equals(Object other)
      Specified by:
      equals in interface Binding
      Overrides:
      equals in class Object

    • hashCode

      public static int hashCode(Binding bind)

    • detach

      public Binding detach()
      Description copied from interface: Binding
      Returns a binding which is guaranteed to be independent of any resources such as an ongoing query execution or a disk-based dataset. May return itself if it is already detached.
      Specified by:
      detach in interface Binding