org.iscreen.mvel
Class MvelConfiguredValidator

java.lang.Object
  org.iscreen.impl.BaseConfiguredValidator
      org.iscreen.mvel.MvelConfiguredValidator

All Implemented Interfaces:

ValidatorWrapper

public class MvelConfiguredValidator
extends BaseConfiguredValidator

This ValidatorWrapper represents validators for MVEL-based XML configurations.

Author:

Shellman, Dan

Field Summary

static java.lang.String	DEFAULT_FROM
static java.lang.String	DEFAULT_TO

Fields inherited from class org.iscreen.impl.BaseConfiguredValidator

containingService, declared, doc, failFastFlag, id, ifExp, label, mappings, name, parsedDoc, ref, staticProperties, validator, validatorClass

Constructor Summary

MvelConfiguredValidator()
Default constructor.

Method Summary

void	addMapping(java.lang.String from, java.lang.String to) Adds a mapping for mapping the object being validated to the beanToValidate object (that the Validator created).
void	addStaticProperty(java.lang.String property, java.lang.Object obj) Adds a "static" property to set on the underlying Validator.
protected java.lang.String	convertDoc(java.lang.Object obj, java.lang.String unconvertedDoc) Convert the documentation text using the embedded markers.
protected void	executeMappings(java.lang.Object from, java.lang.Object to) Maps the appropriate properties from one object to another.
protected java.io.Serializable	getCompiledIfExpression() Obtains the pre-compiled version of the if expression.
Validator	getConfiguredValidator() Creates the Validator and configures it.
protected static MvelObjectMapping	getDefaultMapping() Create a default mapping so that if no mapping is defined in configuration, a default mapping can be used.
protected java.util.Collection	getFields() Retrieves the Collection of fields (the 'getter' OGNL expressions) that are used in mapping properties from the JavaBean/Object being validated to the validation bean.
void	setIfExpression(java.lang.String exp) Sets the 'if' expression that will determine whether this validator will be executed during validation.
protected boolean	shouldExecute(java.lang.Object obj) Determines whether the inclusion/call to the validator should occur.

Methods inherited from class org.iscreen.impl.BaseConfiguredValidator

getDoc, getFieldsTrace, getId, getIfExpression, getLabel, getMappings, getName, getRawDoc, getServiceId, getStaticProperties, getValidatorClass, isDeclared, isFailFast, setClassName, setDoc, setFailFast, setId, setLabel, setLabel, setName, setRef, setValidationService, signalDeclared, validate

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_TO

public static final java.lang.String DEFAULT_TO

See Also:

Constant Field Values

DEFAULT_FROM

public static final java.lang.String DEFAULT_FROM

See Also:

Constant Field Values

Constructor Detail

MvelConfiguredValidator

public MvelConfiguredValidator()

Default constructor.

Method Detail

executeMappings

protected void executeMappings(java.lang.Object from,
                               java.lang.Object to)

Maps the appropriate properties from one object to another.

Specified by:

executeMappings in class BaseConfiguredValidator

Parameters:

from - The object to map from.

to - The object to map to.

addMapping

public void addMapping(java.lang.String from,
                       java.lang.String to)

Adds a mapping for mapping the object being validated to the beanToValidate object (that the Validator created).

Specified by:

addMapping in class BaseConfiguredValidator

Parameters:

from - The OGNL from expression (getter)

to - The OGNL to expression (setter)

addStaticProperty

public void addStaticProperty(java.lang.String property,
                              java.lang.Object obj)

Adds a "static" property to set on the underlying Validator. A "static" property is really an MVEL expression that will set some value on the Validator once (such as a constraint, service, or failure message).

For failures, the object type should be an MvelMessage. For a constraint or service, any object type is fine (as long as it maps to the underlying Validator property).

Specified by:

addStaticProperty in class BaseConfiguredValidator

Parameters:

property - The MVEL expression to set a value

obj - The value to set, once, on the Validator to configure it.

getDefaultMapping

protected static MvelObjectMapping getDefaultMapping()

Create a default mapping so that if no mapping is defined in configuration, a default mapping can be used.

Returns:

Returns a default configured mapping.

getConfiguredValidator

public Validator getConfiguredValidator()

Creates the Validator and configures it. Multiple calls will NOT construct a new Validator each call, but will return the same instance created the first time.

Specified by:

getConfiguredValidator in class BaseConfiguredValidator

Returns:

Returns a created and configured Validator.

getFields

protected java.util.Collection getFields()

Retrieves the Collection of fields (the 'getter' OGNL expressions) that are used in mapping properties from the JavaBean/Object being validated to the validation bean.

Specified by:

getFields in class BaseConfiguredValidator

Returns:

Returns the Collection of fields (the 'getter' OGNL expressions).

convertDoc

protected java.lang.String convertDoc(java.lang.Object obj,
                                      java.lang.String unconvertedDoc)

Description copied from class: BaseConfiguredValidator

Convert the documentation text using the embedded markers.

Specified by:

convertDoc in class BaseConfiguredValidator

Parameters:

obj - The context bean (root) for converting the doc.

unconvertedDoc - The raw documentation text.

Returns:

Returns the converted documentation text.

shouldExecute

protected boolean shouldExecute(java.lang.Object obj)

Determines whether the inclusion/call to the validator should occur.

Specified by:

shouldExecute in class BaseConfiguredValidator

Parameters:

obj - The object being validated.

Returns:

Returns true if the validator should be executed.

getCompiledIfExpression

protected java.io.Serializable getCompiledIfExpression()

Obtains the pre-compiled version of the if expression.

Returns:

The Serializable representing the if expression.

setIfExpression

public void setIfExpression(java.lang.String exp)

Sets the 'if' expression that will determine whether this validator will be executed during validation.

Overrides:

setIfExpression in class BaseConfiguredValidator

Parameters:

theExp - The 'if' expression.