D.9 Package javax.faces.validator

DoubleRangeValidator

An instance of this class is used as a Validator for the range of a Double value.

Synopsis

Class name:

javax.faces.validator.DoubleRangeValidator

Extends:

None

Implements:

javax.faces.convert.Validator, javax.faces.component.StateHolder

Fields

public static final String MAXIMUM_MESSAGE_ID: The message identifier for the message this validator creates if the maximum value limit is exceeded: javax.faces.validator.DoubleRangeValidator.MAXIMUM.
public static final String MINIMUM_MESSAGE_ID: The message identifier for the message this validator creates if the minimum value limit is not reached: javax.faces.validator.DoubleRangeValidator.MINIMUM.
public static final String TYPE_MESSAGE_ID: The message identifier for the message this validator creates if the value is not of the correct type: javax.faces.validator.DoubleRangeValidator.TYPE.
public static final String VALIDATOR_ID: The identifier for this validator: javax.faces.DoubleRange.

Constructors

public DoubleRangeValidator(): Creates an instance.
public DoubleRangeValidator(double maximum): Creates an instance with the specified maximum.
public DoubleRangeValidator(double maximum, double minimum): Creates an instance with the specified maximum and minimum.

Methods

public boolean equals(Object other): Returns true if the other object represents the same converter as this instance.
public double getMaximum(): Returns the upper limit set or Double.MAX_VALUE if not defined.
public double getMinimum(): Returns the lower limit set or Double.MIN_VALUE if not defined.
public boolean isTransient(): Returns true if no state should be saved and restored for this instance.
public void restoreState(javax.faces.context.FacesContext context, Object state): Restores the state for this instance from the provided value; an Object previously returned by the saveState() method.
public Object saveState(javax.faces.context.FacesContext context): Returns the state for this instance as an Object to be passed to the restoreState() method when the instance is restored for the next request.
public void setMaximum(double maximum): Sets the upper limit.
public void setMinimum(double minimum): Sets the lower limit.
public void setTransient(boolean isTransient): Sets the transient property value.
public void validate(javax.faces.context.FacesContext context, javax.faces.component.UIComponent component, Object value): Validates the provided value to ensure it falls within the specified limits. Throws a ValidatorException with an instance of the appropriate FacesMessage if the validation fails.

LengthValidator

An instance of this class is used as a Validator for the length of a String value.

Synopsis

Class name:

javax.faces.validator.LengthValidator

Extends:

None

Implements:

javax.faces.convert.Validator, javax.faces.component.StateHolder

Fields

public static final String MAXIMUM_MESSAGE_ID: The message identifier for the message this validator creates if the maximum length limit is exceeded: javax.faces.validator.LengthValidator.MAXIMUM.
public static final String MINIMUM_MESSAGE_ID: The message identifier for the message this validator creates if the minimum length limit is not reached: javax.faces.validator.LengthValidator.MINIMUM.
public static final String VALIDATOR_ID: The identifier for this validator: javax.faces.Length.

Constructors

public LengthValidator(): Creates an instance.
public LengthValidator(int maximum): Creates an instance with the specified maximum.
public LengthValidator(int maximum, int minimum): Creates an instance with the specified maximum and minimum.

Methods

public boolean equals(Object other): Returns true if the other object represents the same converter as this instance.
public int getMaximum(): Returns the upper limit set or zero if not defined.
public int getMinimum(): Returns the lower limit set or zero if not defined.
public boolean isTransient(): Returns true if no state should be saved and restored for this instance.
public void restoreState(javax.faces.context.FacesContext context, Object state): Restores the state for this instance from the provided value; an Object previously returned by the saveState() method.
public Object saveState(javax.faces.context.FacesContext context): Returns the state for this instance as an Object to be passed to the restoreState() method when the instance is restored for the next request.
public void setMaximum(int maximum): Sets the upper limit.
public void setMinimum(int minimum): Sets the lower limit.
public void setTransient(boolean isTransient): Sets the transient property value.
public void validate(javax.faces.context.FacesContext context, javax.faces.component.UIComponent component, Object value): Validates the provided value, to ensure it falls within the specified limits. Throws a ValidatorException with an instance of the appropriate FacesMessage if the validation fails.

LongRangeValidator

An instance of this class is used as a Validator for the range of a Long value.

Synopsis

Class name:

javax.faces.validator.LongRangeValidator

Extends:

None

Implements:

javax.faces.convert.Validator,javax.faces.component.StateHolder

Fields

public static final String MAXIMUM_MESSAGE_ID: The message identifier for the message this validator creates if the maximum value limit is exceeded: javax.faces.validator.LongRangeValidator.MAXIMUM.
public static final String MINIMUM_MESSAGE_ID: The message identifier for the message this validator creates if the minimum value limit is not reached: javax.faces.validator.LongRangeValidator.MINIMUM.
public static final String TYPE_MESSAGE_ID: The message identifier for the message this validator creates if the value is not of the correct type: javax.faces.validator.LongRangeValidator.TYPE.
public static final String VALIDATOR_ID: The identifier for this validator: javax.faces.LongRange.

Constructors

public LongRangeValidator(): Creates an instance.
public LongRangeValidator(int maximum): Creates an instance with the specified maximum.
public LongRangeValidator(int maximum, int minimum): Creates an instance with the specified maximum and minimum.

Methods

public boolean equals(Object other): Returns true if the other object represents the same converter as this instance.
public int getMaximum(): Returns the upper limit set or Long.MAX_VALUE if not defined.
public int getMinimum(): Returns the lower limit set or Long.MIN_VALUE if not defined.
public boolean isTransient(): Returns true if no state should be saved and restored for this instance.
public void restoreState(javax.faces.context.FacesContext context, Object state): Restores the state for this instance from the provided value; an Object previously returned by the saveState() method.
public Object saveState(javax.faces.context.FacesContext context): Returns the state for this instance as an Object to be passed to the restoreState() method when the instance is restored for the next request.
public void setMaximum(int maximum): Sets the upper limit.
public void setMinimum(int minimum): Sets the lower limit.
public void setTransient(boolean isTransient): Sets the transient property value.
public void validate(javax.faces.context.FacesContext context, javax.faces.component.UIComponent component, Object value): Validates the provided value, to ensure it falls within the specified limits. Throws a ValidatorException with an instance of the appropriate FacesMessage if the validation fails.

Validator

This interface is implemented by all validator classes.

Synopsis

Interface name:

javax.faces.validator.Validator

Extends:

None

Implemented by:

All standard and custom validators.

Fields

public static final String NOT_IN_RANGE_MESSAGE_ID: The message identifier for the message a validator creates if the value falls outside both the minimum and maximum value: javax.faces.validator.NOT_IN_RANGE.

Methods

public void validate(javax.faces.context.FacesContext context, javax.faces.component.UIComponent component, Object value): Validates the provided value. Throws a ValidatorException with an instance of the appropriate FacesMessage if the validation fails.

ValidatorException

An instance of this class is thrown by a Validator implementation to signal a validation error.

Synopsis

Class name:

javax.faces.validator.ValidatorException

Extends:

javax.faces.FacesException

Implements:

java.io.Serializable

Constructors

public ValidatorException(java.faces.application.FacesMessage message): Creates an instance with the specified message.
public ValidatorException(java.faces.application.FacesMessage message,
Throwable rootCause): Creates an instance with the specified message and root cause.

Methods

public java.faces.application.FacesMessage getFacesMessage(): Returns the FacesMessage instance, or null if none is set.

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