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| <h1 id="Lucene_Net_QueryParsers_Flexible_Messages" data-uid="Lucene.Net.QueryParsers.Flexible.Messages" class="text-break">Namespace Lucene.Net.QueryParsers.Flexible.Messages |
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| <div class="markdown level0 summary"><!-- |
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| <p>For Native Language Support (NLS), system of software internationalization.</p> |
| <h2 id="nls-message-api">NLS message API</h2> |
| <p> This utility API, adds support for NLS messages in the apache code. It is currently used by the lucene "New Flexible Query PArser". </p> |
| <p> Features: 1. Message reference in the code, using static Strings 2. Message resource validation at class load time, for easier debugging 3. Allows for message IDs to be re-factored using eclipse or other code re-factor tools 4. Allows for reference count on messages, just like code 5. Lazy loading of Message Strings 6. Normal loading Message Strings </p> |
| <p> Lazy loading of Message Strings public class MessagesTestBundle extends NLS { private static final String BUNDLE_NAME = MessagesTestBundle.class.getName(); private MessagesTestBundle() { // should never be instantiated } static { // register all string ids with NLS class and initialize static string // values NLS.initializeMessages(BUNDLE_NAME, MessagesTestBundle.class); } // static string must match the strings in the property files. public static String Q0001E_INVALID_SYNTAX; public static String Q0004E_INVALID_SYNTAX_ESCAPE_UNICODE_TRUNCATION; // this message is missing from the properties file public static String Q0005E_MESSAGE_NOT_IN_BUNDLE; } // Create a message reference Message invalidSyntax = new MessageImpl(MessagesTestBundle.Q0001E_INVALID_SYNTAX, "XXX"); // Do other stuff in the code... // when is time to display the message to the user or log the message on a file // the message is loaded from the correct bundle String message1 = invalidSyntax.getLocalizedMessage(); String message2 = invalidSyntax.getLocalizedMessage(Locale.JAPANESE); </p> |
| <p> Normal loading of Message Strings String message1 = NLS.getLocalizedMessage(MessagesTestBundle.Q0004E_INVALID_SYNTAX_ESCAPE_UNICODE_TRUNCATION); String message2 = NLS.getLocalizedMessage(MessagesTestBundle.Q0004E_INVALID_SYNTAX_ESCAPE_UNICODE_TRUNCATION, Locale.JAPANESE); </p> |
| <p> The org.apache.lucene.messages.TestNLS junit contains several other examples. The TestNLS java code is available from the Apache Lucene code repository. </p> |
| </div> |
| <div class="markdown level0 conceptual"></div> |
| <div class="markdown level0 remarks"></div> |
| <h3 id="classes">Classes |
| </h3> |
| <h4><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Messages.Message.html">Message</a></h4> |
| <section><p>Default implementation of Message interface. |
| For Native Language Support (NLS), system of software internationalization.</p> |
| </section> |
| <h4><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Messages.NLS.html">NLS</a></h4> |
| <section><p>MessageBundles classes extend this class, to implement a bundle.</p> |
| <p>For Native Language Support (NLS), system of software internationalization.</p> |
| <p>This interface is similar to the NLS class in eclipse.osgi.util.NLS class - |
| initializeMessages() method resets the values of all static strings, should |
| only be called by classes that extend from NLS (see TestMessages.java for |
| reference) - performs validation of all message in a bundle, at class load |
| time - performs per message validation at runtime - see NLSTest.java for |
| usage reference</p> |
| <p>MessageBundle classes may subclass this type.</p> |
| </section> |
| <h3 id="interfaces">Interfaces |
| </h3> |
| <h4><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Messages.IMessage.html">IMessage</a></h4> |
| <section><p>Message Interface for a lazy loading. |
| For Native Language Support (NLS), system of software internationalization.</p> |
| </section> |
| <h4><a class="xref" href="Lucene.Net.QueryParsers.Flexible.Messages.INLSException.html">INLSException</a></h4> |
| <section><p>Interface that exceptions should implement to support lazy loading of messages.</p> |
| <p>For Native Language Support (NLS), system of software internationalization.</p> |
| <p>This Interface should be implemented by all exceptions that require |
| translation</p> |
| </section> |
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