Package io.guise.framework.validator

Class AbstractRegularExpressionValidator<V>

java.lang.Object

com.globalmentor.beans.BoundPropertyObject

io.guise.framework.event.GuiseBoundPropertyObject

io.guise.framework.validator.AbstractValidator<V>

io.guise.framework.validator.AbstractRegularExpressionValidator<V>

Type Parameters:

V - The value type this validator supports.

All Implemented Interfaces:

com.globalmentor.beans.PropertyBindable, com.globalmentor.beans.PropertyConstrainable, Validator<V>

Direct Known Subclasses:

RegularExpressionCharArrayValidator, RegularExpressionStringValidator

public abstract class AbstractRegularExpressionValidator<V>
extends AbstractValidator<V>

An abstract validator that can validate against regular expressions.

Author:

Garret Wilson

Field Summary

Fields inherited from class com.globalmentor.beans.BoundPropertyObject

NO_PROPERTY_CHANGE_LISTENERS, NO_VETOABLE_CHANGE_LISTENERS

Fields inherited from interface io.guise.framework.validator.Validator

INVALID_VALUE_MESSAGE_PROPERTY, VALUE_REQUIRED_MESSAGE_PROPERTY, VALUE_REQUIRED_PROPERTY

Constructor Summary

Constructors

Constructor	Description
AbstractRegularExpressionValidator(String regularExpression)	Constructs a string regular expression validator from a regular expression string, without requiring a non-null value..
AbstractRegularExpressionValidator(String regularExpression, boolean valueRequired)	Constructs a string regular expression validator from a regular expression string.
AbstractRegularExpressionValidator(Pattern pattern)	Constructs a string regular expression validator from a regular expression pattern, without requiring a non-null value.
AbstractRegularExpressionValidator(Pattern pattern, boolean valueRequired)	Constructs a string regular expression validator from a regular expression pattern.

Method Summary

Modifier and Type	Method	Description
Pattern	getPattern()
protected abstract String	toString(V value)	Retrieves a string representation of the given value appropriate for error messages.
void	validate(V value)	Checks whether a given value is valid, and throws an exception if not.

Methods inherited from class io.guise.framework.validator.AbstractValidator

getInvalidValueMessage, getValueRequiredMessage, isValid, isValueRequired, setInvalidValueMessage, setValueRequired, setValueRequiredMessage, throwInvalidValueValidationException, throwValueRequiredValidationException

Methods inherited from class io.guise.framework.event.GuiseBoundPropertyObject

getSession

Methods inherited from class com.globalmentor.beans.BoundPropertyObject

addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, addVetoableChangeListener, createPostponedPropertyChangeEvent, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, getForwardPropertyChangeListener, getPropertyChangeListeners, getPropertyChangeListeners, getPropertyChangeSupport, getRepeatPropertyChangeListener, getRepeatVetoableChangeListener, getVetoableChangeListeners, getVetoableChangeListeners, getVetoableChangeSupport, hasPropertyChangeListeners, hasVetoableChangeListeners, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, removeVetoableChangeListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.globalmentor.beans.PropertyBindable

addPropertyChangeListener, addPropertyChangeListener, getPropertyChangeListeners, getPropertyChangeListeners, hasPropertyChangeListeners, removePropertyChangeListener, removePropertyChangeListener

Methods inherited from interface io.guise.framework.validator.Validator

getSession

Constructor Details

AbstractRegularExpressionValidator

public AbstractRegularExpressionValidator(String regularExpression)

Constructs a string regular expression validator from a regular expression string, without requiring a non-null value..

Parameters:

regularExpression - The regular expression against which to validate string values.

Throws:

NullPointerException - if the given regular expression is null.

AbstractRegularExpressionValidator

public AbstractRegularExpressionValidator(String regularExpression,
 boolean valueRequired)

Constructs a string regular expression validator from a regular expression string.

Parameters:

regularExpression - The regular expression against which to validate string values.

valueRequired - Whether the value must be non-null in order to be considered valid.

Throws:

NullPointerException - if the given regular expression is null.

AbstractRegularExpressionValidator

public AbstractRegularExpressionValidator(Pattern pattern)

Constructs a string regular expression validator from a regular expression pattern, without requiring a non-null value.

Parameters:

pattern - The regular expression pattern against which to validate string values.

Throws:

NullPointerException - if the given regular expression pattern is null.

AbstractRegularExpressionValidator

public AbstractRegularExpressionValidator(Pattern pattern,
 boolean valueRequired)

Constructs a string regular expression validator from a regular expression pattern.

Parameters:

pattern - The regular expression pattern against which to validate string values.

valueRequired - Whether the value must be non-null in order to be considered valid.

Throws:

NullPointerException - if the given regular expression pattern is null.

Method Details

getPattern

public Pattern getPattern()

Returns:

The regular expression pattern against which to validate string values.

toString

protected abstract String toString(V value)

Description copied from class: AbstractValidator

Retrieves a string representation of the given value appropriate for error messages. This implementation returns the Object.toString() string representation of the value.

Overrides:

toString in class AbstractValidator<V>

Parameters:

value - The value for which a string representation should be returned.

Returns:

A string representation of the given value.

validate

public void validate(V value)
              throws ValidationException

Description copied from class: AbstractValidator

Checks whether a given value is valid, and throws an exception if not.

The message of the thrown exception should be appropriate for display to the user, although it may include string resource references. If a child class has no specific message to return, that class may call AbstractValidator.throwInvalidValueValidationException(Object) as a convenience. A child class may also call AbstractValidator.throwValueRequiredValidationException(Object) as a convenience, but this is usually not required if this version of the method, which provides a missing value check, is called first.

This version checks whether a value is provided if values are required. Child classes should call this version as a convenience for checking non- null and required status.

Adding new validation logic always requires overriding this method. Although Validator.isValid(Object) may be overridden to provide optimized fast-fail determinations, adding new logic to Validator.isValid(Object) cannot be used in place of overriding this method.

This version checks whether a value is provided if values are required. Child classes should call this version as a convenience for checking non- null and required status.

Adding new validation logic always requires overriding this method. Although AbstractValidator.isValid(Object) may be overridden to provide optimized fast-fail determinations, adding new logic to AbstractValidator.isValid(Object) cannot be used in place of overriding this method.

Specified by:

validate in interface Validator<V>

Overrides:

validate in class AbstractValidator<V>

Parameters:

value - The value to validate, which may be null.

Throws:

ValidationException - if the provided value is not valid.

See Also:

• AbstractValidator.throwInvalidValueValidationException(Object)
• AbstractValidator.throwValueRequiredValidationException(Object)