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package javax.faces.event;
import java.util.
Arrays;
import java.util.
Collections;
import java.util.
List;
import javax.faces.
FacesException;
/**
* <p><span class="changed_modified_2_2">Typesafe</span> enumeration of
* the legal values that may be returned by the
* <code>getPhaseId()</code> method of the {@link FacesEvent} interface.
*/
public class
PhaseId implements
Comparable {
// ----------------------------------------------------------- Constructors
/**
* <p>Private constructor to disable the creation of new instances.</p>
*/
private
PhaseId(
String newPhaseName) {
phaseName =
newPhaseName;
}
// ----------------------------------------------------- Instance Variables
/**
* <p>The ordinal value assigned to this instance.</p>
*/
private final int
ordinal =
nextOrdinal++;
/**
* <p>The (optional) name for this phase.</p>
*/
private
String phaseName = null;
// --------------------------------------------------------- Public Methods
/**
* <p>Compare this {@link PhaseId} instance to the specified one.
* Returns a negative integer, zero, or a positive integer if this
* object is less than, equal to, or greater than the specified object.</p>
*
* @param other The other object to be compared to
*/
public int
compareTo(
Object other) {
return this.
ordinal - ((
PhaseId)
other).
ordinal;
}
/**
* <p>Return the ordinal value of this {@link PhaseId} instance.</p>
*/
public int
getOrdinal() {
return (this.
ordinal);
}
/**
* <p>Return a String representation of this {@link PhaseId} instance.</p>
*/
public
String toString() {
if (null ==
phaseName) {
return (
String.
valueOf(this.
ordinal));
}
return (
String.
valueOf(this.
phaseName) + ' ' + this.
ordinal);
}
/**
* <p class="changed_added_2_2">Return the name of this phase.</p>
*
* @since 2.2
*/
public
String getName() {
return this.
phaseName;
}
/**
* <p class="changed_added_2_2">Return a <code>PhaseId</code>
* representation of the arcument <code>phase</code>.</p>
*
* @param phase the String for which the corresponding
* <code>PhaseId</code> should be returned.
*
* @throws <code>NullPointerException</code> if argument <code>phase</code> is
* <code>null</code>.
*
* @throws <code>FacesException</code> if the <code>PhaseId</code>
* corresponding to the argument <code>phase</code> cannot be found.
*
* @since 2.2
*/
public static
PhaseId phaseIdValueOf(
String phase) {
if (null ==
phase) {
throw new
NullPointerException();
}
PhaseId result = null;
if (
ANY_PHASE_NAME.
equals(
phase)) {
result =
PhaseId.
ANY_PHASE;
} else if (
APPLY_REQUEST_VALUES_NAME.
equalsIgnoreCase(
phase)) {
result =
PhaseId.
APPLY_REQUEST_VALUES;
} else if (
INVOKE_APPLICATION_NAME.
equalsIgnoreCase(
phase)) {
result =
PhaseId.
INVOKE_APPLICATION;
} else if (
PROCESS_VALIDATIONS_NAME.
equalsIgnoreCase(
phase)) {
result =
PhaseId.
PROCESS_VALIDATIONS;
} else if (
RENDER_RESPONSE_NAME.
equalsIgnoreCase(
phase)) {
result =
PhaseId.
RENDER_RESPONSE;
} else if (
RESTORE_VIEW_NAME.
equalsIgnoreCase(
phase)) {
result =
PhaseId.
RESTORE_VIEW;
} else if (
UPDATE_MODEL_VALUES_NAME.
equalsIgnoreCase(
phase)) {
result =
PhaseId.
UPDATE_MODEL_VALUES;
} else {
throw new
FacesException("Not a valid phase [" +
phase + "]");
}
return
result;
}
// ------------------------------------------------------- Static Variables
/**
* <p>Static counter returning the ordinal value to be assigned to the
* next instance that is created.</p>
*/
private static int
nextOrdinal = 0;
// ------------------------------------------------------ Create Instances
// Any new Phase values must go at the end of the list, or we will break
// backwards compatibility on serialized instances
private static final
String ANY_PHASE_NAME = "ANY";
/**
* <p>Identifier that indicates an interest in events, no matter
* which request processing phase is being performed.</p>
*/
public static final
PhaseId ANY_PHASE = new
PhaseId(
ANY_PHASE_NAME);
private static final
String RESTORE_VIEW_NAME = "RESTORE_VIEW";
/**
* <p>Identifier that indicates an interest in events queued for
* the <em>Restore View</em> phase of the request
* processing lifecycle.</p>
*/
public static final
PhaseId RESTORE_VIEW = new
PhaseId(
RESTORE_VIEW_NAME);
private static final
String APPLY_REQUEST_VALUES_NAME = "APPLY_REQUEST_VALUES";
/**
* <p>Identifier that indicates an interest in events queued for
* the <em>Apply Request Values</em> phase of the request
* processing lifecycle.</p>
*/
public static final
PhaseId APPLY_REQUEST_VALUES = new
PhaseId(
APPLY_REQUEST_VALUES_NAME);
private static final
String PROCESS_VALIDATIONS_NAME = "PROCESS_VALIDATIONS";
/**
* <p>Identifier that indicates an interest in events queued for
* the <em>Process Validations</em> phase of the request
* processing lifecycle.</p>
*/
public static final
PhaseId PROCESS_VALIDATIONS = new
PhaseId(
PROCESS_VALIDATIONS_NAME);
private static final
String UPDATE_MODEL_VALUES_NAME = "UPDATE_MODEL_VALUES";
/**
* <p>Identifier that indicates an interest in events queued for
* the <em>Update Model Values</em> phase of the request
* processing lifecycle.</p>
*/
public static final
PhaseId UPDATE_MODEL_VALUES = new
PhaseId(
UPDATE_MODEL_VALUES_NAME);
private static final
String INVOKE_APPLICATION_NAME = "INVOKE_APPLICATION";
/**
* <p>Identifier that indicates an interest in events queued for
* the <em>Invoke Application</em> phase of the request
* processing lifecycle.</p>
*/
public static final
PhaseId INVOKE_APPLICATION = new
PhaseId(
INVOKE_APPLICATION_NAME);
private static final
String RENDER_RESPONSE_NAME = "RENDER_RESPONSE";
/**
* <p>Identifier for the <em>Render Response</em> phase of the
* request processing lifecycle.</p>
*/
public static final
PhaseId RENDER_RESPONSE = new
PhaseId(
RENDER_RESPONSE_NAME);
/**
* <p>Array of all defined values, ascending order of ordinal value.
* Be sure you include any new instances created above, in the
* same order.</p>
*/
private static final
PhaseId[]
values =
{
ANY_PHASE,
RESTORE_VIEW,
APPLY_REQUEST_VALUES,
PROCESS_VALIDATIONS,
UPDATE_MODEL_VALUES,
INVOKE_APPLICATION,
RENDER_RESPONSE};
/**
* <p>List of valid {@link PhaseId} instances, in ascending order
* of their ordinal value.</p>
*/
public static final
List<
PhaseId>
VALUES =
Collections.
unmodifiableList(
Arrays.
asList(
values));
}