com.google.gwt.i18n.shared.AlternateMessageSelector Maven / Gradle / Ivy
/*
* Copyright 2011 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.google.gwt.i18n.shared;
/**
* Defines a way of choosing between alternate messages based on a parameter
* value.
*/
public interface AlternateMessageSelector {
/**
* Represents an alternate form of a message.
*/
public static class AlternateForm implements Comparable {
private final String name;
private final String description;
private final boolean warnIfMissing;
/**
* Create the plural form.
*
* @param name
* @param description
*/
public AlternateForm(String name, String description) {
this(name, description, true);
}
/**
* Create the plural form.
*
* @param name
* @param description
* @param warnIfMissing if false, do not warn if this form is missing from a
* translation. This is used for those cases where a plural form
* is defined for a language, but is very rarely used.
*/
public AlternateForm(String name, String description,
boolean warnIfMissing) {
this.name = name;
this.description = description;
this.warnIfMissing = warnIfMissing;
}
public int compareTo(AlternateForm o) {
return name.compareTo(o.name);
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj == null || obj.getClass() != getClass()) {
return false;
}
return compareTo((AlternateForm) obj) == 0;
}
/**
* Returns the description, suitable for describing this form to
* translators.
*/
public String getDescription() {
return description;
}
/**
* Returns the name.
*/
public String getName() {
return name;
}
/**
* Returns true if the generator should warn if this plural form is not
* present.
*/
public boolean getWarnIfMissing() {
return warnIfMissing;
}
@Override
public int hashCode() {
return name.hashCode();
}
@Override
public String toString() {
return name;
}
}
AlternateForm OTHER = new AlternateForm("other",
"Default value if no other forms apply");
/**
* Check if a user-supplied form is acceptable for this alternate message
* selector.
*
* @param form
* @return true if the form is acceptable, otherwise false
*/
boolean isFormAcceptable(String form);
}