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

java.lang.Object
  com.hp.hpl.jena.sparql.engine.binding.BindingBase

All Implemented Interfaces:

Binding

Direct Known Subclasses:

Binding0, Binding1, BindingMap, BindingProject

public abstract class BindingBase
extends java.lang.Object
implements Binding

Machinary 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) - the node value is never null
void	addAll(Binding other)
boolean	contains(Var var) Test whether a name is bound to some object
static boolean	equals(Binding bind1, Binding bind2)
boolean	equals(java.lang.Object other)
void	format1(java.lang.StringBuffer sbuff)
com.hp.hpl.jena.graph.Node	get(Var var) Return the object bound to a name, or null
Binding	getParent()
int	hashCode()
static int	hashCode(Binding bind)
boolean	isEmpty() Is this an empty binding? No variables.
int	size() Number of (var, value) pairs.
java.lang.String	toString()
java.lang.String	toString1()
java.util.Iterator<Var>	vars() Iterate over all the names of variables.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Detail

getParent

public Binding getParent()

Specified by:

getParent in interface Binding

add

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

Add a (var,value) - the node value is never null

Specified by:

add in interface Binding

addAll

public void addAll(Binding other)

Specified by:

addAll in interface Binding

vars

public final java.util.Iterator<Var> vars()

Iterate over all the names of variables.

Specified by:

vars 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 boolean contains(Var var)

Test whether a name is bound to some object

Specified by:

contains in interface Binding

get

public final com.hp.hpl.jena.graph.Node get(Var var)

Return the object bound to a name, or null

Specified by:

get in interface Binding

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

format1

public void format1(java.lang.StringBuffer sbuff)

toString1

public java.lang.String toString1()

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

hashCode

public static int hashCode(Binding bind)

equals

public static boolean equals(Binding bind1,
                             Binding bind2)