JavaEE Web API 8.0.1 · javax.faces.validator.DoubleRangeValidator

DoubleRangeValidator is a Validator that checks the value of the corresponding component against specified minimum and maximum values. The following algorithm is implemented:

If the passed value is null, exit immediately.
If the current component value is not a floating point type, or a String that is convertible to double, throw a ValidatorException containing a TYPE_MESSAGE_ID message.
If both a maximum and minimum property has been configured on this Validator, check the component value against both limits. If the component value is not within this specified range, throw a ValidatorException containing a NOT_IN_RANGE_MESSAGE_ID message.
If a maximum property has been configured on this Validator, check the component value against this limit. If the component value is greater than the specified maximum, throw a ValidatorException containing a MAXIMUM_MESSAGE_ID message.
If a minimum property has been configured on this Validator, check the component value against this limit. If the component value is less than the specified minimum, throw a ValidatorException containing a MINIMUM_MESSAGE_ID message.

For all of the above cases that cause a ValidatorException to be thrown, if there are parameters to the message that match up with validator parameters, the values of these parameters must be converted using the Converter registered in the application under the converter id javax.faces.Number. This allows the values to be localized according to the current Locale.

Field Summary

Modifier and Type	Field and Description
private boolean	initialState
private Double	maximum
public static final String	MAXIMUM_MESSAGE_ID The message identifier of the `javax.faces.application.FacesMessage` to be created if the maximum value check fails.
private Double	minimum
public static final String	MINIMUM_MESSAGE_ID The message identifier of the `javax.faces.application.FacesMessage` to be created if the minimum value check fails.
public static final String	NOT_IN_RANGE_MESSAGE_ID Hides javax.faces.validator.Validator.NOT_IN_RANGE_MESSAGE_ID. The message identifier of the `javax.faces.application.FacesMessage` to be created if the maximum or minimum value check fails, and both the maximum and minimum values for this validator have been set.
private boolean	transientValue
public static final String	TYPE_MESSAGE_ID The message identifier of the `javax.faces.application.FacesMessage` to be created if the current value of this component is not of the correct type.
public static final String	VALIDATOR_ID The standard converter id for this converter.

Constructor Summary

Access	Constructor and Description
public	DoubleRangeValidator() Construct a `Validator` with no preconfigured limits.
public	DoubleRangeValidator(double Maximum value to allow maximum) Construct a `Validator` with the specified preconfigured limit.
public	DoubleRangeValidator(double Maximum value to allow maximum, double Minimum value to allow minimum) Construct a `Validator` with the specified preconfigured limits.

Method Summary

Modifier and Type	Method and Description
public void	clearInitialState() Implements javax.faces.component.PartialStateHolder.clearInitialState. Reset the PartialStateHolder to a non-delta tracking state.
private static double	doubleValue(Object The attribute value to be converted attributeValue) Return the specified attribute value, converted to a `double`.
public boolean	Returns: true if equal, false otherwise. equals(Object the object to compare against. otherObj) Overrides java.lang.Object.equals. Overrides the default equals method to take the minimum and maximum into account when comparing DoubleRangeValidator instances.
public double	Returns: the maximum getMaximum() Return the maximum value to be enforced by this `Validator` or `Double.MAX_VALUE` if it has not been set.
public double	Returns: the minimum value getMinimum() Return the minimum value to be enforced by this `Validator`, or `Double.MIN_VALUE` if it has not been set.
public int	Returns: the hash code. hashCode() Overrides java.lang.Object.hashCode. Overrides the default hash code method to take the minimum and maximum into account when generating the hash code.
public boolean	initialStateMarked() Implements javax.faces.component.PartialStateHolder.initialStateMarked. Return `true` if delta state changes are being tracked, otherwise `false`
private boolean	isMaximumSet()
private boolean	isMinimumSet()
public boolean	isTransient() Implements javax.faces.component.StateHolder.isTransient. If true, the Object implementing this interface must not participate in state saving or restoring.
public void	markInitialState() Implements javax.faces.component.PartialStateHolder.markInitialState. The runtime must ensure that the `markInitialState` method is called on each instance of this interface in the view at the appropriate time to indicate the component is in its initial state.
public void	restoreState(FacesContext the Faces context. context, Object the state. state) Implements javax.faces.component.StateHolder.restoreState. Perform any processing required to restore the state from the entries in the state Object.
public Object	saveState(FacesContext the Faces context. context) Implements javax.faces.component.StateHolder.saveState. Gets the state of the instance as a `Serializable` Object.
public void	setMaximum(double The new maximum value maximum) Set the maximum value to be enforced by this `Validator`.
public void	setMinimum(double The new minimum value minimum) Set the minimum value to be enforced by this `Validator`.
public void	setTransient(boolean boolean pass `true` if this Object will not participate in state saving or restoring, otherwise pass `false`. transientValue) Implements javax.faces.component.StateHolder.setTransient. Denotes whether or not the Object implementing this interface must or must not participate in state saving or restoring.
private static String	stringValue(UIComponent component, Double toConvert, FacesContext context)
public void	validate(FacesContext FacesContext for the request we are processing context, UIComponent UIComponent we are checking for correctness component, Object the value to validate value) Implements javax.faces.validator.Validator.validate. Perform the correctness checks implemented by this `Validator` against the specified `UIComponent`.

Inherited from java.lang.Object:: clone finalize getClass notify notifyAll toString wait wait wait

Field Detail

initialState	back to summary
private boolean initialState

maximum	back to summary
private Double maximum

MAXIMUM_MESSAGE_ID back to summary

MAXIMUM_MESSAGE_ID	back to summary
public static final String MAXIMUM_MESSAGE_ID The message identifier of the `javax.faces.application.FacesMessage` to be created if the maximum value check fails. The message format string for this message may optionally include the following placeholders: `{0}` replaced by the configured maximum value. `{1}` replaced by a `String` whose value is the label of the input component that produced this message.

public static final String MAXIMUM_MESSAGE_ID

The message identifier of the javax.faces.application.FacesMessage to be created if the maximum value check fails. The message format string for this message may optionally include the following placeholders:

{0} replaced by the configured maximum value.
{1} replaced by a String whose value is the label of the input component that produced this message.

minimum	back to summary
private Double minimum

MINIMUM_MESSAGE_ID back to summary

MINIMUM_MESSAGE_ID	back to summary
public static final String MINIMUM_MESSAGE_ID The message identifier of the `javax.faces.application.FacesMessage` to be created if the minimum value check fails. The message format string for this message may optionally include the following placeholders: `{0}` replaced by the configured minimum value. `{1}` replaced by a `String` whose value is the label of the input component that produced this message.

public static final String MINIMUM_MESSAGE_ID

The message identifier of the javax.faces.application.FacesMessage to be created if the minimum value check fails. The message format string for this message may optionally include the following placeholders:

{0} replaced by the configured minimum value.
{1} replaced by a String whose value is the label of the input component that produced this message.

NOT_IN_RANGE_MESSAGE_ID back to summary

NOT_IN_RANGE_MESSAGE_ID	back to summary
public static final String NOT_IN_RANGE_MESSAGE_ID Hides javax.faces.validator.Validator.NOT_IN_RANGE_MESSAGE_ID. The message identifier of the `javax.faces.application.FacesMessage` to be created if the maximum or minimum value check fails, and both the maximum and minimum values for this validator have been set. The message format string for this message may optionally include the following placeholders: `{0}` replaced by the configured minimum value. `{1}` replaced by the configured maximum value. `{2}` replaced by a `String` whose value is the label of the input component that produced this message.

public static final String NOT_IN_RANGE_MESSAGE_ID

Hides javax.faces.validator.Validator.NOT_IN_RANGE_MESSAGE_ID.

The message identifier of the javax.faces.application.FacesMessage to be created if the maximum or minimum value check fails, and both the maximum and minimum values for this validator have been set. The message format string for this message may optionally include the following placeholders:

{0} replaced by the configured minimum value.
{1} replaced by the configured maximum value.
{2} replaced by a String whose value is the label of the input component that produced this message.

transientValue	back to summary
private boolean transientValue

TYPE_MESSAGE_ID	back to summary
public static final String TYPE_MESSAGE_ID The message identifier of the `javax.faces.application.FacesMessage` to be created if the current value of this component is not of the correct type. The message format string for this message may optionally include a `{0}` placeholder that will be replaced by a `String` whose value is the label of the input component that produced this message.

VALIDATOR_ID	back to summary
public static final String VALIDATOR_ID The standard converter id for this converter.

Constructor Detail

DoubleRangeValidator	back to summary
public DoubleRangeValidator() Construct a `Validator` with no preconfigured limits.

DoubleRangeValidator back to summary

DoubleRangeValidator	back to summary
public DoubleRangeValidator(double maximum) Construct a `Validator` with the specified preconfigured limit. Parameters maximum:double Maximum value to allow

public DoubleRangeValidator(double maximum)

Construct a Validator with the specified preconfigured limit.

Parameters

maximum:double: Maximum value to allow

DoubleRangeValidator back to summary

DoubleRangeValidator	back to summary
public DoubleRangeValidator(double maximum, double minimum) Construct a `Validator` with the specified preconfigured limits. Parameters maximum:double Maximum value to allow minimum:double Minimum value to allow

public DoubleRangeValidator(double maximum, double minimum)

Construct a Validator with the specified preconfigured limits.

Parameters

maximum:double: Maximum value to allow
minimum:double: Minimum value to allow

Method Detail

clearInitialState	back to summary
public void clearInitialState() Implements javax.faces.component.PartialStateHolder.clearInitialState. Doc from javax.faces.component.PartialStateHolder.clearInitialState. Reset the PartialStateHolder to a non-delta tracking state. Annotations @Override

clearInitialState

back to summary

public void clearInitialState()

Implements javax.faces.component.PartialStateHolder.clearInitialState.

Doc from javax.faces.component.PartialStateHolder.clearInitialState.

Reset the PartialStateHolder to a non-delta tracking state.

Annotations

@Override

doubleValue back to summary

doubleValue	back to summary
private static double doubleValue(Object attributeValue) throws NumberFormatException Return the specified attribute value, converted to a `double`. Parameters attributeValue:Object The attribute value to be converted Exceptions NumberFormatException: if conversion is not possible

private static double doubleValue(Object attributeValue) throws NumberFormatException

Return the specified attribute value, converted to a double.

Parameters

attributeValue:Object: The attribute value to be converted

Exceptions

NumberFormatException:: if conversion is not possible

equals	back to summary
public boolean equals(Object otherObj) Overrides java.lang.Object.equals. Overrides the default equals method to take the minimum and maximum into account when comparing DoubleRangeValidator instances. Parameters otherObj:Object the object to compare against. Returns:boolean true if equal, false otherwise. Annotations @Override

equals

back to summary

public boolean equals(Object otherObj)

Overrides java.lang.Object.equals.

Overrides the default equals method to take the minimum and maximum into account when comparing DoubleRangeValidator instances.

Parameters

otherObj:Object: the object to compare against.

Returns:boolean

true if equal, false otherwise.

Annotations

@Override

getMaximum back to summary

getMaximum	back to summary
public double getMaximum() Return the maximum value to be enforced by this `Validator` or `Double.MAX_VALUE` if it has not been set. Returns:double the maximum

public double getMaximum()

Return the maximum value to be enforced by this Validator or Double.MAX_VALUE if it has not been set.

Returns:double: the maximum

getMinimum back to summary

getMinimum	back to summary
public double getMinimum() Return the minimum value to be enforced by this `Validator`, or `Double.MIN_VALUE` if it has not been set. Returns:double the minimum value

public double getMinimum()

Return the minimum value to be enforced by this Validator, or Double.MIN_VALUE if it has not been set.

Returns:double: the minimum value

hashCode	back to summary
public int hashCode() Overrides java.lang.Object.hashCode. Overrides the default hash code method to take the minimum and maximum into account when generating the hash code. Returns:int the hash code. Annotations @Override

hashCode

back to summary

public int hashCode()

Overrides java.lang.Object.hashCode.

Overrides the default hash code method to take the minimum and maximum into account when generating the hash code.

Returns:int

the hash code.

Annotations

@Override

initialStateMarked back to summary

initialStateMarked	back to summary
public boolean initialStateMarked() Implements javax.faces.component.PartialStateHolder.initialStateMarked. Doc from javax.faces.component.PartialStateHolder.initialStateMarked. Return `true` if delta state changes are being tracked, otherwise `false` Returns:boolean `true` if the initial state is marked, `false` otherwise. Annotations @Override

public boolean initialStateMarked()

Implements javax.faces.component.PartialStateHolder.initialStateMarked.

Doc from javax.faces.component.PartialStateHolder.initialStateMarked.

Return true if delta state changes are being tracked, otherwise false

Returns:boolean

true if the initial state is marked, false otherwise.

Annotations

@Override

isMaximumSet	back to summary
private boolean isMaximumSet()

isMinimumSet	back to summary
private boolean isMinimumSet()

isTransient back to summary

isTransient	back to summary
public boolean isTransient() Implements javax.faces.component.StateHolder.isTransient. Doc from javax.faces.component.StateHolder.isTransient. If true, the Object implementing this interface must not participate in state saving or restoring. Returns:boolean `true` if transient, `false` otherwise. Annotations @Override

public boolean isTransient()

Implements javax.faces.component.StateHolder.isTransient.

Doc from javax.faces.component.StateHolder.isTransient.

If true, the Object implementing this interface must not participate in state saving or restoring.

Returns:boolean

true if transient, false otherwise.

Annotations

@Override

markInitialState back to summary

markInitialState	back to summary
public void markInitialState() Implements javax.faces.component.PartialStateHolder.markInitialState. Doc from javax.faces.component.PartialStateHolder.markInitialState. The runtime must ensure that the `markInitialState` method is called on each instance of this interface in the view at the appropriate time to indicate the component is in its initial state. The implementor of the interface must ensure that `initialStateMarked` returns `true` from the time `markInitialState()` is called until `clearInitialState` is called, after which time `initialStateMarked()` must return `false`. Also, during the time that the instance returns `true` from `initialStateMarked()`, the implementation must return only the state that has changed in its implementation of `StateHolder#saveState`. Annotations @Override

public void markInitialState()

Implements javax.faces.component.PartialStateHolder.markInitialState.

Doc from javax.faces.component.PartialStateHolder.markInitialState.

The runtime must ensure that the markInitialState method is called on each instance of this interface in the view at the appropriate time to indicate the component is in its initial state. The implementor of the interface must ensure that initialStateMarked returns true from the time markInitialState() is called until clearInitialState is called, after which time initialStateMarked() must return false. Also, during the time that the instance returns true from initialStateMarked(), the implementation must return only the state that has changed in its implementation of StateHolder#saveState.

Annotations

@Override

restoreState back to summary

restoreState	back to summary
public void restoreState(FacesContext context, Object state) Implements javax.faces.component.StateHolder.restoreState. Doc from javax.faces.component.StateHolder.restoreState. Perform any processing required to restore the state from the entries in the state Object. If the class that implements this interface has references to instances that also implement StateHolder (such as a `UIComponent` with event handlers, validators, etc.) this method must call the `restoreState` method on all those instances as well. If the `state` argument is `null`, take no action and return. Parameters context:FacesContext the Faces context. state:Object the state. Annotations @Override

public void restoreState(FacesContext context, Object state)

Implements javax.faces.component.StateHolder.restoreState.

Doc from javax.faces.component.StateHolder.restoreState.

Perform any processing required to restore the state from the entries in the state Object.

If the class that implements this interface has references to instances that also implement StateHolder (such as a UIComponent with event handlers, validators, etc.) this method must call the restoreState method on all those instances as well.

If the state argument is null, take no action and return.

Parameters

context:FacesContext: the Faces context.
state:Object: the state.

Annotations

@Override

saveState back to summary

saveState	back to summary
public Object saveState(FacesContext context) Implements javax.faces.component.StateHolder.saveState. Doc from javax.faces.component.StateHolder.saveState. Gets the state of the instance as a `Serializable` Object. If the class that implements this interface has references to instances that implement StateHolder (such as a `UIComponent` with event handlers, validators, etc.) this method must call the `saveState` method on all those instances as well. This method must not save the state of children and facets. That is done via the `javax.faces.application.StateManager` This method must not alter the state of the implementing object. In other words, after executing this code: `Object state = component.saveState(facesContext);` `component` should be the same as before executing it. The return from this method must be `Serializable` Parameters context:FacesContext the Faces context. Returns:Object the saved state. Annotations @Override

public Object saveState(FacesContext context)

Implements javax.faces.component.StateHolder.saveState.

Doc from javax.faces.component.StateHolder.saveState.

Gets the state of the instance as a Serializable Object.

If the class that implements this interface has references to instances that implement StateHolder (such as a UIComponent with event handlers, validators, etc.) this method must call the saveState method on all those instances as well. This method must not save the state of children and facets. That is done via the javax.faces.application.StateManager

This method must not alter the state of the implementing object. In other words, after executing this code:


Object state = component.saveState(facesContext);

component should be the same as before executing it.

The return from this method must be Serializable

Parameters

context:FacesContext: the Faces context.

Returns:Object

the saved state.

Annotations

@Override

setMaximum back to summary

setMaximum	back to summary
public void setMaximum(double maximum) Set the maximum value to be enforced by this `Validator`. Parameters maximum:double The new maximum value

public void setMaximum(double maximum)

Set the maximum value to be enforced by this Validator.

Parameters

maximum:double: The new maximum value

setMinimum back to summary

setMinimum	back to summary
public void setMinimum(double minimum) Set the minimum value to be enforced by this `Validator`. Parameters minimum:double The new minimum value

public void setMinimum(double minimum)

Set the minimum value to be enforced by this Validator.

Parameters

minimum:double: The new minimum value

setTransient back to summary

setTransient	back to summary
public void setTransient(boolean transientValue) Implements javax.faces.component.StateHolder.setTransient. Doc from javax.faces.component.StateHolder.setTransient. Denotes whether or not the Object implementing this interface must or must not participate in state saving or restoring. Parameters transientValue:boolean boolean pass `true` if this Object will not participate in state saving or restoring, otherwise pass `false`. Annotations @Override

public void setTransient(boolean transientValue)

Implements javax.faces.component.StateHolder.setTransient.

Doc from javax.faces.component.StateHolder.setTransient.

Denotes whether or not the Object implementing this interface must or must not participate in state saving or restoring.

Parameters

transientValue:boolean: boolean pass true if this Object will not participate in state saving or restoring, otherwise pass false.

Annotations

@Override

stringValue	back to summary
private static String stringValue(UIComponent component, Double toConvert, FacesContext context)

validate back to summary

validate	back to summary
public void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException Implements javax.faces.validator.Validator.validate. Doc from javax.faces.validator.Validator.validate. Perform the correctness checks implemented by this `Validator` against the specified `UIComponent`. If any violations are found, a `ValidatorException` will be thrown containing the `javax.faces.application.FacesMessage` describing the failure. For a validator to be fully compliant with Version 2 and later of the specification, it must not fail validation on `null` or empty values unless it is specifically intended to address `null` or empty values. An application-wide `<context-param>` is provided to allow validators designed for JSF 1.2 to work with JSF 2 and later. The `javax.faces.VALIDATE_EMPTY_FIELDS` `<context-param>` must be set to `false` to enable this backwards compatibility behavior. Parameters context:FacesContext FacesContext for the request we are processing component:UIComponent UIComponent we are checking for correctness value:Object the value to validate Annotations @Override Exceptions ValidatorException: if validation fails NullPointerException: if `context` or `component` is `null`

public void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException

Implements javax.faces.validator.Validator.validate.

Doc from javax.faces.validator.Validator.validate.

Perform the correctness checks implemented by this Validator against the specified UIComponent. If any violations are found, a ValidatorException will be thrown containing the javax.faces.application.FacesMessage describing the failure.

For a validator to be fully compliant with Version 2 and later of the specification, it must not fail validation on null or empty values unless it is specifically intended to address null or empty values. An application-wide <context-param> is provided to allow validators designed for JSF 1.2 to work with JSF 2 and later. The javax.faces.VALIDATE_EMPTY_FIELDS <context-param> must be set to false to enable this backwards compatibility behavior.

Parameters

context:FacesContext: FacesContext for the request we are processing
component:UIComponent: UIComponent we are checking for correctness
value:Object: the value to validate

Annotations

@Override

Exceptions

ValidatorException:: if validation fails
NullPointerException:: if context or component is null

public Class DoubleRangeValidator

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail