com.hp.hpl.jena.sparql.engine.binding

Interface Binding

All Known Subinterfaces:

BindingMap, BindingMutable

All Known Implementing Classes:

Binding0, Binding1, BindingBase, BindingFixed, BindingHashMap, BindingProject, BindingProjectBase, BindingProjectNamed, BindingRoot, BindingWrapped

public interface Binding

Interface encapsulating a mapping from a name to a value.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	contains(Var var) Test whether a variable is bound to some object
Node	get(Var var) Return the object bound to a variable, or null
boolean	isEmpty() Is this an empty binding? No variables.
int	size() Number of (var, value) pairs.
Iterator<Var>	vars() Iterate over all variables of this binding.

Method Detail

vars

Iterator<Var> vars()

Iterate over all variables of this binding.

contains

boolean contains(Var var)

Test whether a variable is bound to some object

get

Node get(Var var)

Return the object bound to a variable, or null

size

int size()

Number of (var, value) pairs.

isEmpty

boolean isEmpty()

Is this an empty binding? No variables.