votorola.g.web.wic

Class ModelLengthLimiter<S extends CharSequence>

java.lang.Object

org.apache.wicket.model.AbstractWrapModel<S>

ModelLengthLimiter<S>

All Implemented Interfaces:

Serializable, IClusterable, IDetachable, IModel<S>, IWrapModel<S>

@ThreadSafe
public final class ModelLengthLimiter<S extends CharSequence>
extends AbstractWrapModel<S>

A model wrapper that enforces a maximum length of character sequences. For use only with models that hold character sequences. (Otherwise, the associated IConverter should eagerly enforce its own constraints, at conversion time.)

See Also:

CharSequence, Serialized Form

Constructor Summary

Constructors

Constructor and Description
ModelLengthLimiter(IModel<S> _wrappedModel, int _maxLength) Constructs a ModelLengthLimiter, or throws an IllegalArgumentException if the current value of the wrapped model exceeds the constraint.

Method Summary

Methods

Modifier and Type	Method and Description
int	getMaxLength() The length constraint.
S	getObject()
IModel<S>	getWrappedModel()
static <S extends CharSequence> S	lengthConstrained(S s, int maxLength) Ensures that character sequence s does not exceed the specified maximum length.
void	setObject(S o) Sets the model object; or throws an IllegalArgumentException if the object's string value is longer than the maximum length.

Methods inherited from class org.apache.wicket.model.AbstractWrapModel

detach

Methods inherited from class java.lang.Object

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

Constructor Detail

ModelLengthLimiter

public ModelLengthLimiter(IModel<S> _wrappedModel,
                  int _maxLength)
                   throws ClassCastException

Constructs a ModelLengthLimiter, or throws an IllegalArgumentException if the current value of the wrapped model exceeds the constraint.

Throws:

ClassCastException - if the current value is neither a CharSequence, nor null

See Also:

getWrappedModel(), getMaxLength()

Method Detail

getMaxLength

public final int getMaxLength()

The length constraint.

lengthConstrained

public static <S extends CharSequence> S lengthConstrained(S s,
                                           int maxLength)

Ensures that character sequence s does not exceed the specified maximum length.

Returns:

the same sequence s

Throws:

IllegalArgumentException - if sequence s exceeds maxLength

setObject

public void setObject(S o)
               throws ClassCastException

Sets the model object; or throws an IllegalArgumentException if the object's string value is longer than the maximum length.

Specified by:

setObject in interface IModel<S extends CharSequence>

Overrides:

setObject in class AbstractWrapModel<S extends CharSequence>

Throws:

ClassCastException - if the object is neither a CharSequence, nor null

getObject

public S getObject()

Specified by:

getObject in interface IModel<S extends CharSequence>

Overrides:

getObject in class AbstractWrapModel<S extends CharSequence>

getWrappedModel

public IModel<S> getWrappedModel()