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| org.apache.http.annotation</FONT> |
| <BR> |
| Annotation Type GuardedBy</H2> |
| <HR> |
| <DL> |
| <DT><PRE><FONT SIZE="-1"><A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/annotation/Documented.html" title="class or interface in java.lang.annotation">@Documented</A> |
| <A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/annotation/Target.html" title="class or interface in java.lang.annotation">@Target</A>(<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/annotation/Target.html#value()" title="class or interface in java.lang.annotation">value</A>={<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/annotation/ElementType.html#FIELD" title="class or interface in java.lang.annotation">FIELD</A>,<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/annotation/ElementType.html#METHOD" title="class or interface in java.lang.annotation">METHOD</A>}) |
| <A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/annotation/Retention.html" title="class or interface in java.lang.annotation">@Retention</A>(<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/annotation/Retention.html#value()" title="class or interface in java.lang.annotation">value</A>=<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/annotation/RetentionPolicy.html#CLASS" title="class or interface in java.lang.annotation">CLASS</A>) |
| </FONT>public @interface <B>GuardedBy</B></DL> |
| </PRE> |
| |
| <P> |
| The field or method to which this annotation is applied can only be accessed |
| when holding a particular lock, which may be a built-in (synchronization) lock, |
| or may be an explicit java.util.concurrent.Lock. |
| |
| The argument determines which lock guards the annotated field or method: |
| <ul> |
| <li> |
| <code>this</code> : The intrinsic lock of the object in whose class the field is defined. |
| </li> |
| <li> |
| <code>class-name.this</code> : For inner classes, it may be necessary to disambiguate 'this'; |
| the <em>class-name.this</em> designation allows you to specify which 'this' reference is intended |
| </li> |
| <li> |
| <code>itself</code> : For reference fields only; the object to which the field refers. |
| </li> |
| <li> |
| <code>field-name</code> : The lock object is referenced by the (instance or static) field |
| specified by <em>field-name</em>. |
| </li> |
| <li> |
| <code>class-name.field-name</code> : The lock object is reference by the static field specified |
| by <em>class-name.field-name</em>. |
| </li> |
| <li> |
| <code>method-name()</code> : The lock object is returned by calling the named nil-ary method. |
| </li> |
| <li> |
| <code>class-name.class</code> : The Class object for the specified class should be used as the lock object. |
| </li> |
| <p> |
| Based on code developed by Brian Goetz and Tim Peierls and concepts |
| published in 'Java Concurrency in Practice' by Brian Goetz, Tim Peierls, |
| Joshua Bloch, Joseph Bowbeer, David Holmes and Doug Lea. |
| <P> |
| |
| <P> |
| <HR> |
| |
| <P> |
| <!-- =========== ANNOTATION TYPE REQUIRED MEMBER SUMMARY =========== --> |
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| <B>Required Element Summary</B></FONT></TH> |
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| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> <A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../../org/apache/http/annotation/GuardedBy.html#value()">value</A></B></CODE> |
| |
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| <!-- ============ ANNOTATION TYPE MEMBER DETAIL =========== --> |
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| <B>Element Detail</B></FONT></TH> |
| </TR> |
| </TABLE> |
| |
| <A NAME="value()"><!-- --></A><H3> |
| value</H3> |
| <PRE> |
| public abstract <A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html" title="class or interface in java.lang">String</A> <B>value</B></PRE> |
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