com.clarkparsia.pellet.sparqldl.model

Class QueryAtomImpl

java.lang.Object

com.clarkparsia.pellet.sparqldl.model.QueryAtomImpl

All Implemented Interfaces:

QueryAtom

Direct Known Subclasses:

CoreImpl

public class QueryAtomImpl
extends Object
implements QueryAtom

Title: Abstract implementation of the query atom.

Description:

Copyright: Copyright (c) 2007

Company: Clark & Parsia, LLC.

Author:

Petr Kremen

Field Summary

Fields

Modifier and Type	Field and Description
protected List<aterm.ATermAppl>	arguments
protected boolean	ground
protected QueryPredicate	predicate

Constructor Summary

Constructors

Constructor and Description
QueryAtomImpl(QueryPredicate predicate, aterm.ATermAppl... arguments)
QueryAtomImpl(QueryPredicate predicate, List<aterm.ATermAppl> arguments)

Method Summary

Modifier and Type	Method and Description
QueryAtom	apply(ResultBinding binding) Applies variable binding to the current atom and returns the result which might be same as the current atom.
boolean	equals(Object obj)
List<aterm.ATermAppl>	getArguments() Returns arguments of the atom.
QueryPredicate	getPredicate() Returns predicate of the query atom.
int	hashCode()
boolean	isGround()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

predicate

protected final QueryPredicate predicate

arguments

protected final List<aterm.ATermAppl> arguments

ground

protected boolean ground

Constructor Detail

QueryAtomImpl

public QueryAtomImpl(QueryPredicate predicate,
                     aterm.ATermAppl... arguments)

QueryAtomImpl

public QueryAtomImpl(QueryPredicate predicate,
                     List<aterm.ATermAppl> arguments)

Method Detail

getPredicate

public QueryPredicate getPredicate()

Returns predicate of the query atom.

Specified by:

getPredicate in interface QueryAtom

Returns:

predicate of the query atom

getArguments

public List<aterm.ATermAppl> getArguments()

Returns arguments of the atom.

Specified by:

getArguments in interface QueryAtom

Returns:

arguments of the atom

isGround

public boolean isGround()

Specified by:

isGround in interface QueryAtom

Returns:

true if the atom is ground, i.e. does not use variables, either distinguished or undistinguished ones.

apply

public QueryAtom apply(ResultBinding binding)

Applies variable binding to the current atom and returns the result which might be same as the current atom. Current atom is not affected.

Specified by:

apply in interface QueryAtom

Parameters:

binding - QueryBinding to apply

Returns:

a query atom with applied query binding

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object