org.openrdf.sesame.sail.query
Class StringCompare

java.lang.Object
  org.openrdf.sesame.sail.query.StringCompare

All Implemented Interfaces:

BooleanExpr

public class StringCompare

extends Object

implements BooleanExpr

A comparison between two strings.

Field Summary

static int	EQ equal to
static int	NE not equal to

Constructor Summary

StringCompare(StringExpr leftArg, StringExpr rightArg)

StringCompare(StringExpr leftArg, StringExpr rightArg, int op)

Method Summary

StringExpr	getLeftArg()
int	getOperator()
StringExpr	getRightArg()
void	getVariables(Collection variables) Gets all variables that are used in this BooleanExpr.
boolean	isTrue(RdfSource rdfSource) Evaluates the boolean expression on the supplied RdfSource object.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

EQ

public static final int EQ

equal to

See Also:

Constant Field Values

NE

public static final int NE

not equal to

See Also:

Constant Field Values

Constructor Detail

StringCompare

public StringCompare(StringExpr leftArg,
                     StringExpr rightArg)

StringCompare

public StringCompare(StringExpr leftArg,
                     StringExpr rightArg,
                     int op)

Method Detail

getLeftArg

public StringExpr getLeftArg()

getRightArg

public StringExpr getRightArg()

getOperator

public int getOperator()

isTrue

public boolean isTrue(RdfSource rdfSource)
               throws SailQueryException

Description copied from interface: BooleanExpr

Evaluates the boolean expression on the supplied RdfSource object.

Specified by:

isTrue in interface BooleanExpr

Parameters:

rdfSource - The RdfSource to evaluate the boolean expression against.

Returns:

the result of the evaluation.

Throws:

SailQueryException

getVariables

public void getVariables(Collection variables)

Description copied from interface: BooleanExpr

Gets all variables that are used in this BooleanExpr.

Specified by:

getVariables in interface BooleanExpr

Parameters:

variables - A Collection to add the Var objects to.

toString

public String toString()