org.makumba.providers.datadefinition.makumba.validation
Class ComparisonValidationRule

java.lang.Object
  org.makumba.providers.datadefinition.makumba.validation.BasicValidationRule
      org.makumba.providers.datadefinition.makumba.validation.ComparisonValidationRule

All Implemented Interfaces:

Serializable, Comparable<ValidationRule>, ValidationRule

public class ComparisonValidationRule
extends BasicValidationRule

This validation rule implements comparison validations between two fields, using the syntax <fieldname> comparison operator <otherFieldname>. Valid operators are "(<|>|=|>=|<=|!=)". This rule can be used for either two date, number or string types.

Version:

$Id: NumberRangeValidationRule.java,v 1.1 Sep 6, 2007 1:31:27 AM rudi Exp $

Author:

Rudolf Mayer

See Also:

Serialized Form

Field Summary

static String	compareTo The compare-to part, either another field, or a date fucntion:
static String	comparisonOperators Possible comparison operators: "(<|>|=|>=|<=|!=)"
static String	dateExpression
static String	dateFunction
static String	dateFunctionExpression the full date function "date\\(([\\s]*(\\$now[\\s]*(\\+[\\s]*\\d+|-[\\s]*\\d+)?|\\d+)[\\s]*,){0,5}([\\s]*(\\$now[\\s]*(\\+[\\s]*\\d+|-[\\s]*\\d+)?|\\d+)[\\s]*)?\\)".
static String	dateFunctionParamExpression
static String	now
static String	rule
static String	today

Fields inherited from class org.makumba.providers.datadefinition.makumba.validation.BasicValidationRule

allowedTypes, errorMessage, fd, fieldDef, fieldFunction, fieldName, lowerFunction, NUMBER_TYPES, operators, rangeDef, rangeValue, ruleName, ruleSyntax, STRING_TYPES, upperFunction

Constructor Summary

ComparisonValidationRule(FieldDefinition fd, String fieldName, String functionName, FieldDefinition otherFd, String otherFieldName, String ruleName, String errorMessage, String compareOperator)

ComparisonValidationRule(FieldDefinition fd, String fieldName, String compareToExpression, String ruleName, String errorMessage, String compareOperator)

Method Summary

Date	evaluateExpression()
String	getCompareOperator()
static Matcher	getDateExpressionMatcher(String rule)
String	getFunctionName()
static Matcher	getMatcher(String rule)
static String	getOperator()
static List<String>	getOperators()
FieldDefinition	getOtherFd()
String	getOtherFieldName()
boolean	isCompareToExpression()
static void	main(String[] args) Do some pattern matching tests.
static boolean	matches(String rule)
static boolean	matchesDateExpression(String rule)
protected boolean	throwException(boolean b)
String	toString()
boolean	validate(Object value, Transaction t) Perform the validation process.

Methods inherited from class org.makumba.providers.datadefinition.makumba.validation.BasicValidationRule

applyFunction, compareTo, extractFunctionArgument, extractFunctionNameFromStatement, getAllowedTypes, getDataDefinition, getErrorMessage, getFieldDefinition, getFieldName, getRuleName, getValidationRuleArguments, getValidationRuleOperators, isFunctionCall, isValidFunctionCall

Methods inherited from class java.lang.Object

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

Field Detail

now

public static final String now

See Also:

Constant Field Values

today

public static final String today

See Also:

Constant Field Values

dateFunction

public static final String dateFunction

See Also:

Constant Field Values

dateFunctionParamExpression

public static final String dateFunctionParamExpression

See Also:

Constant Field Values

dateFunctionExpression

public static final String dateFunctionExpression

the full date function "date\\(([\\s]*(\\$now[\\s]*(\\+[\\s]*\\d+|-[\\s]*\\d+)?|\\d+)[\\s]*,){0,5}([\\s]*(\\$now[\\s]*(\\+[\\s]*\\d+|-[\\s]*\\d+)?|\\d+)[\\s]*)?\\)".

See Also:

Constant Field Values

compareTo

public static final String compareTo

The compare-to part, either another field, or a date fucntion:

dateExpression

public static final String dateExpression

comparisonOperators

public static final String comparisonOperators

Possible comparison operators: "(<|>|=|>=|<=|!=)"

See Also:

Constant Field Values

rule

public static final String rule

Constructor Detail

ComparisonValidationRule

public ComparisonValidationRule(FieldDefinition fd,
                                String fieldName,
                                String functionName,
                                FieldDefinition otherFd,
                                String otherFieldName,
                                String ruleName,
                                String errorMessage,
                                String compareOperator)
                         throws ValidationDefinitionParseError

Throws:

ValidationDefinitionParseError

ComparisonValidationRule

public ComparisonValidationRule(FieldDefinition fd,
                                String fieldName,
                                String compareToExpression,
                                String ruleName,
                                String errorMessage,
                                String compareOperator)

Method Detail

validate

public boolean validate(Object value,
                        Transaction t)
                 throws InvalidValueException

Description copied from interface: ValidationRule

Perform the validation process.

t - TODO

Throws:

InvalidValueException - if the validation fails

toString

public String toString()

Overrides:

toString in class Object

getOtherFieldName

public String getOtherFieldName()

getOtherFd

public FieldDefinition getOtherFd()

getCompareOperator

public String getCompareOperator()

getFunctionName

public String getFunctionName()

throwException

protected boolean throwException(boolean b)
                          throws InvalidValueException

Throws:

InvalidValueException

isCompareToExpression

public boolean isCompareToExpression()

evaluateExpression

public Date evaluateExpression()
                        throws ValidationDefinitionParseError

Throws:

ValidationDefinitionParseError

matches

public static boolean matches(String rule)

getMatcher

public static Matcher getMatcher(String rule)

getDateExpressionMatcher

public static Matcher getDateExpressionMatcher(String rule)

matchesDateExpression

public static boolean matchesDateExpression(String rule)

getOperators

public static List<String> getOperators()

main

public static void main(String[] args)

Do some pattern matching tests.

getOperator

public static String getOperator()