org.apache.cocoon.forms.datatype.validationruleimpl
Class ValueCountValidationRule

java.lang.Object
  org.apache.cocoon.forms.datatype.validationruleimpl.AbstractValidationRule
      org.apache.cocoon.forms.datatype.validationruleimpl.ValueCountValidationRule

All Implemented Interfaces:

ValidationRule

public class ValueCountValidationRule

extends AbstractValidationRule

Checks the number of values (i.e. the size of the array). This only works for Datatypes for which Datatype.isArrayType() returns true.

This validation rule can perform 4 different checks:

• check exact array size
• check minimum array size
• check maximum array size
• check min and max array size

Version:

$Id: ValueCountValidationRule.html 1304280 2012-03-23 11:18:01Z ilgrosso $

Constructor Summary

ValueCountValidationRule()

Method Summary

void	setExactExpr(org.outerj.expression.Expression exactExpr)
void	setMaxExpr(org.outerj.expression.Expression maxExpr)
void	setMinExpr(org.outerj.expression.Expression minExpr)
boolean	supportsType(Class clazz, boolean arrayType) Returns true if this ValidationRule supports validating objects of the same class as the one specified.
ValidationError	validate(Object value, org.outerj.expression.ExpressionContext expressionContext)

Methods inherited from class org.apache.cocoon.forms.datatype.validationruleimpl.AbstractValidationRule

evaluateComparable, evaluateNumeric, getFailMessage, hasFailMessage, setFailMessage

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueCountValidationRule

public ValueCountValidationRule()

Method Detail

setExactExpr

public void setExactExpr(org.outerj.expression.Expression exactExpr)

setMinExpr

public void setMinExpr(org.outerj.expression.Expression minExpr)

setMaxExpr

public void setMaxExpr(org.outerj.expression.Expression maxExpr)

validate

public ValidationError validate(Object value,
                                org.outerj.expression.ExpressionContext expressionContext)

Parameters:

value - a value of a class supported by the ValidationRule implementation

expressionContext - many validation rules use the xReporter expression interpreter, the expressionContext allows to resolve variables used in these expressions.

supportsType

public boolean supportsType(Class clazz,
                            boolean arrayType)

Description copied from interface: ValidationRule

Returns true if this ValidationRule supports validating objects of the same class as the one specified. If the flag 'arrayType' is true, this method will return true if this validation rule can validate arrays of these objects (i.e. the object passed to the validate method will then be an array).