org.openanzo.glitter.syntax.abstrakt
Class BGP

java.lang.Object
  org.openanzo.glitter.syntax.abstrakt.TreeNode
      org.openanzo.glitter.syntax.abstrakt.GraphPattern
          org.openanzo.glitter.syntax.abstrakt.BGP

public class BGP
extends GraphPattern

A SPARQL basic graph pattern. Logically, a BGP is an ordered list of triple patterns and possibly a FunctionalPredicate.

Author:

lee

Constructor Summary

BGP()
Default constructor.

BGP(java.util.ArrayList<TriplePatternNode> triples)
Construct a BGP from a list of triple patterns.

BGP(TriplePatternNode[] triples)
Construct a BGP from an array of triple patterns.

Method Summary

void	addChild(TreeNode child) Adds the given child at the end of this node's children.
void	addTriplePattern(TriplePatternNode tp) Add a new triple pattern to this BGP.
java.util.Iterator<TriplePatternNode>	getChildren()
FunctionalPredicate	getFunctionalPredicate()
java.lang.Iterable<TriplePatternNode>	getTriplePatterns()
boolean	removeChild(TreeNode child) Removes the given child from the collection of children
boolean	replaceChild(TreeNode oldChild, TreeNode newChild) Changes the tree below this node by replacing oldChild with newChild
void	setFunctionalPredicate(FunctionalPredicate fp)
java.lang.String	toString()

Methods inherited from class org.openanzo.glitter.syntax.abstrakt.TreeNode

containsVariable, getBindableVariableCount, getBindableVariableSet, getFilters, getInScopeFilterSet, getParent, getRoot, getVariableCount, getVariableSet, invalidateCache, invalidateCache, mightBindVariable, prettyPrint, prettyPrint

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

BGP

public BGP()

Default constructor.

BGP

public BGP(TriplePatternNode[] triples)

Construct a BGP from an array of triple patterns.

Parameters:

triples -

BGP

public BGP(java.util.ArrayList<TriplePatternNode> triples)

Construct a BGP from a list of triple patterns.

Parameters:

triples -

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

addTriplePattern

public void addTriplePattern(TriplePatternNode tp)

Add a new triple pattern to this BGP.

Parameters:

tp -

getTriplePatterns

public java.lang.Iterable<TriplePatternNode> getTriplePatterns()

Returns:

An iterable collection of the triple patterns that comprise this BGP.

getFunctionalPredicate

public FunctionalPredicate getFunctionalPredicate()

Returns:

A FunctionalPredicate captured by this basic graph pattern.

setFunctionalPredicate

public void setFunctionalPredicate(FunctionalPredicate fp)

Parameters:

fp - Sets a functional predicate for this BGP.

getChildren

public java.util.Iterator<TriplePatternNode> getChildren()

Specified by:

getChildren in class TreeNode

Returns:

An Iterator over the children of this node.

replaceChild

public boolean replaceChild(TreeNode oldChild,
                            TreeNode newChild)

Description copied from class: TreeNode

Changes the tree below this node by replacing oldChild with newChild

Specified by:

replaceChild in class TreeNode

Returns:

true if the oldChild was found and replaced; false otherwise.

removeChild

public boolean removeChild(TreeNode child)

Description copied from class: TreeNode

Removes the given child from the collection of children

Specified by:

removeChild in class TreeNode

Returns:

true if the child was found and removed; false otherwise.

addChild

public void addChild(TreeNode child)

Description copied from class: TreeNode

Adds the given child at the end of this node's children.

Specified by:

addChild in class TreeNode