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GwtCompatible (Guava Libraries 2010.01.04)
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com.google.common.annotations</FONT>
<BR>
Annotation Type GwtCompatible</H2>
<HR>
<DL>
<DT><PRE><FONT SIZE="-1"><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/annotation/Retention.html?is-external=true" title="class or interface in java.lang.annotation">@Retention</A>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/annotation/Retention.html?is-external=true#value()" title="class or interface in java.lang.annotation">value</A>=<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/annotation/RetentionPolicy.html?is-external=true#CLASS" title="class or interface in java.lang.annotation">CLASS</A>)
<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/annotation/Target.html?is-external=true" title="class or interface in java.lang.annotation">@Target</A>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/annotation/Target.html?is-external=true#value()" title="class or interface in java.lang.annotation">value</A>={<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/annotation/ElementType.html?is-external=true#TYPE" title="class or interface in java.lang.annotation">TYPE</A>,<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/annotation/ElementType.html?is-external=true#METHOD" title="class or interface in java.lang.annotation">METHOD</A>})
</FONT>public @interface <B>GwtCompatible</B></DL>
</PRE>
<P>
The presence of this annotation on a type indicates that the type may be
used with the
<a href="http://code.google.com/webtoolkit/">Google Web Toolkit</a> (GWT).
When applied to a method, the return type of the method is GWT compatible.
It's useful to indicate that an instance created by factory methods has a GWT
serializable type. In the following example,
<pre style="code">
@GwtCompatible
class Lists {
...
@GwtCompatible(serializable = true)
static <E> List<E> newArrayList(E... elements) {
...
}
}
</pre>
The return value of <code>Lists.newArrayList(E[])</code> has GWT
serializable type. It is also useful in specifying contracts of interface
methods. In the following example,
<pre style="code">
@GwtCompatible
interface ListFactory {
...
@GwtCompatible(serializable = true)
<E> List<E> newArrayList(E... elements);
}
</pre>
The <code>newArrayList(E[])</code> method of all implementations of <code>ListFactory</code> is expected to return a value with a GWT serializable type.
<p>Note that a <code>GwtCompatible</code> type may have some <A HREF="../../../../com/google/common/annotations/GwtIncompatible.html" title="annotation in com.google.common.annotations"><CODE>GwtIncompatible</CODE></A> methods.
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD>Charles Fry, Hayward Chan</DD>
</DL>
<HR>
<P>
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<B>Optional Element Summary</B></FONT></TH>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/google/common/annotations/GwtCompatible.html#emulated()">emulated</A></B></CODE>
<BR>
When <code>true</code>, the annotated type is emulated in GWT.</TD>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/google/common/annotations/GwtCompatible.html#serializable()">serializable</A></B></CODE>
<BR>
When <code>true</code>, the annotated type or the type of the method return
value is GWT serializable.</TD>
</TR>
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<P>
<A NAME="serializable()"><!-- --></A><H3>
serializable</H3>
<PRE>
public abstract boolean <B>serializable</B></PRE>
<DL>
<DD>When <code>true</code>, the annotated type or the type of the method return
value is GWT serializable.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>See Also:</B><DD><a href="http://code.google.com/docreader/#p=google-web-toolkit-doc-1-5&t=DevGuideSerializableTypes">
Documentation about GWT serialization</a></DL>
<DL>
<DT><B>Default:</B><DD>false</DD>
</DL>
</DL>
<HR>
<A NAME="emulated()"><!-- --></A><H3>
emulated</H3>
<PRE>
public abstract boolean <B>emulated</B></PRE>
<DL>
<DD>When <code>true</code>, the annotated type is emulated in GWT. The emulated
source (also known as super-source) is different from the implementation
used by the JVM.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>See Also:</B><DD><a href="http://code.google.com/docreader/#p=google-web-toolkit-doc-1-5&t=DevGuideModuleXml">
Documentation about GWT emulated source</a></DL>
<DL>
<DT><B>Default:</B><DD>false</DD>
</DL>
</DL>
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