org.openrdf.query.algebra.helpers

Class TupleExprs

java.lang.Object

org.openrdf.query.algebra.helpers.TupleExprs

public class TupleExprs
extends Object

Utility methods for TupleExpr objects.

Since:

2.7.3

Author:

Jeen Broekstra

Constructor Summary

Constructors

Constructor and Description
TupleExprs()

Method Summary

Methods

Modifier and Type	Method and Description
static boolean	containsProjection(TupleExpr t) Verifies if the supplied TupleExpr contains a Projection.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TupleExprs

public TupleExprs()

Method Detail

containsProjection

public static boolean containsProjection(TupleExpr t)

Verifies if the supplied TupleExpr contains a Projection. If the supplied TupleExpr is a Join or contains a Join, projections inside that Join's arguments will not be taken into account.

Parameters:

t - a tuple expression.

Returns:

true if the TupleExpr contains a projection (outside of a Join), false otherwise.

Since:

2.7.3