net.ontopia.persistence.query.jdo
Class JDOEvaluator

java.lang.Object
  net.ontopia.persistence.query.jdo.JDOEvaluator

public class JDOEvaluator
extends java.lang.Object

INTERNAL: Methods for reducing JDOExpressionIF, so that expressions that require no input data can be removed from the query.

Return values [type int] from evaluate methods: 1 is true, -1 is false, 0 means cannot be evaluated.

Constructor Summary

JDOEvaluator()

Method Summary

static int	evaluateAnd(JDOAnd jdoexpr, ObjectRelationalMappingIF mapping, boolean reduce)
static int	evaluateBoolean(JDOBoolean jdoexpr, ObjectRelationalMappingIF mapping)
static int	evaluateContains(JDOContains jdoexpr, ObjectRelationalMappingIF mapping)
static int	evaluateEndsWith(JDOEndsWith jdoexpr, ObjectRelationalMappingIF mapping)
static int	evaluateEquals(JDOEquals jdoexpr, ObjectRelationalMappingIF mapping)
static int	evaluateExpression(JDOExpressionIF jdoexpr, ObjectRelationalMappingIF mapping, boolean reduce)
static int	evaluateIsEmpty(JDOIsEmpty jdoexpr, ObjectRelationalMappingIF mapping)
static java.lang.Object	evaluateJDOValue(JDOValueIF jdovalue, ObjectRelationalMappingIF mapping)
static int	evaluateLike(JDOLike jdoexpr, ObjectRelationalMappingIF mapping)
static int	evaluateNot(JDONot jdoexpr, ObjectRelationalMappingIF mapping, boolean reduce)
static int	evaluateNotEquals(JDONotEquals jdoexpr, ObjectRelationalMappingIF mapping)
static int	evaluateOr(JDOOr jdoexpr, ObjectRelationalMappingIF mapping, boolean reduce)
static int	evaluateStartsWith(JDOStartsWith jdoexpr, ObjectRelationalMappingIF mapping)
static int	evaluateValueExpression(JDOValueExpression jdoexpr, ObjectRelationalMappingIF mapping)
static boolean	isEvaluatable(JDOValueIF jdovalue, ObjectRelationalMappingIF mapping)

Methods inherited from class java.lang.Object

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

Constructor Detail

JDOEvaluator

public JDOEvaluator()

Method Detail

evaluateExpression

public static int evaluateExpression(JDOExpressionIF jdoexpr,
                                     ObjectRelationalMappingIF mapping,
                                     boolean reduce)

evaluateBoolean

public static int evaluateBoolean(JDOBoolean jdoexpr,
                                  ObjectRelationalMappingIF mapping)

evaluateValueExpression

public static int evaluateValueExpression(JDOValueExpression jdoexpr,
                                          ObjectRelationalMappingIF mapping)

evaluateEquals

public static int evaluateEquals(JDOEquals jdoexpr,
                                 ObjectRelationalMappingIF mapping)

evaluateNotEquals

public static int evaluateNotEquals(JDONotEquals jdoexpr,
                                    ObjectRelationalMappingIF mapping)

evaluateContains

public static int evaluateContains(JDOContains jdoexpr,
                                   ObjectRelationalMappingIF mapping)

evaluateIsEmpty

public static int evaluateIsEmpty(JDOIsEmpty jdoexpr,
                                  ObjectRelationalMappingIF mapping)

evaluateStartsWith

public static int evaluateStartsWith(JDOStartsWith jdoexpr,
                                     ObjectRelationalMappingIF mapping)

evaluateEndsWith

public static int evaluateEndsWith(JDOEndsWith jdoexpr,
                                   ObjectRelationalMappingIF mapping)

evaluateLike

public static int evaluateLike(JDOLike jdoexpr,
                               ObjectRelationalMappingIF mapping)

evaluateAnd

public static int evaluateAnd(JDOAnd jdoexpr,
                              ObjectRelationalMappingIF mapping,
                              boolean reduce)

evaluateOr

public static int evaluateOr(JDOOr jdoexpr,
                             ObjectRelationalMappingIF mapping,
                             boolean reduce)

evaluateNot

public static int evaluateNot(JDONot jdoexpr,
                              ObjectRelationalMappingIF mapping,
                              boolean reduce)

isEvaluatable

public static boolean isEvaluatable(JDOValueIF jdovalue,
                                    ObjectRelationalMappingIF mapping)

evaluateJDOValue

public static java.lang.Object evaluateJDOValue(JDOValueIF jdovalue,
                                                ObjectRelationalMappingIF mapping)