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

All Known Implementing Classes:

Binding0, Binding1, BindingBase, BindingFixed, BindingMap, BindingNamedVar, BindingProject, BindingRoot, BindingWrapped

public interface Binding

Interface encapsulating a mapping from a name to a value.

Method Summary

void	add(Var var, com.hp.hpl.jena.graph.Node node) Add a (var, value) pair- the value must not be null
void	addAll(Binding key)
boolean	contains(Var var) Test whether a variable is bound to some object
com.hp.hpl.jena.graph.Node	get(Var var) Return the object bound to a variable, or null
Binding	getParent()
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

getParent

Binding getParent()

add

void add(Var var,
         com.hp.hpl.jena.graph.Node node)

Add a (var, value) pair- the value must not be null

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

com.hp.hpl.jena.graph.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.

addAll

void addAll(Binding key)