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Java Source Code / Java Documentation » Database ORM » MMBase » org.mmbase.storage.search

Source Cross Reference Class Diagram Java Document (Java Doc)

org.mmbase.storage.search .FieldCompareConstraint

All known Subclasses:   org.mmbase.storage.search.implementation .BasicFieldCompareConstraint,
FieldCompareConstraint
public interface FieldCompareConstraint extends FieldConstraint(Code)
A constraint that compares a stepfield value with another value.
This corresponds with comparison operators <, =, > and LIKE in SQL SELECT-syntax.
author:
   Rob van Maris
version:
   $Id: FieldCompareConstraint.java,v 1.4 2005/04/25 14:56:57 pierre Exp $
since:
   MMBase-1.7

Field Summary
final public static int EQUAL

final public static int GREATER

final public static int GREATER_EQUAL

final public static int LESS

final public static int LESS_EQUAL

final public static int LIKE

final public static int NOT_EQUAL

final public static String[] OPERATOR_DESCRIPTIONS


Method Summary
int getOperator()
     Gets the operator used to compare values.

Field Detail
EQUAL
final public static int EQUAL(Code)
Operator 'equal'

GREATER
final public static int GREATER(Code)
Operator 'greater than'

GREATER_EQUAL
final public static int GREATER_EQUAL(Code)
Operator 'greater than or equal'

LESS
final public static int LESS(Code)
Operator 'less than'

LESS_EQUAL
final public static int LESS_EQUAL(Code)
Operator 'less than or equal'

LIKE
final public static int LIKE(Code)
Operator 'like'

NOT_EQUAL
final public static int NOT_EQUAL(Code)
Operator 'not equal'

OPERATOR_DESCRIPTIONS
final public static String[] OPERATOR_DESCRIPTIONS(Code)
Operator descriptions corresponding to the operator values: FieldCompareConstraint.LESS , FieldCompareConstraint.LESS_EQUAL , FieldCompareConstraint.EQUAL , FieldCompareConstraint.NOT_EQUAL , FieldCompareConstraint.GREATER , FieldCompareConstraint.GREATER_EQUAL , and FieldCompareConstraint.LIKE

Method Detail
getOperator
int getOperator()(Code)
Gets the operator used to compare values. This must be one of the values declared here. The value LIKE is allowed only when the associated field is of string type.

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