1 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2 <!--NewPage--> 3 <HTML> 4 <HEAD> 5 <!-- Generated by javadoc (build 1.6.0-google-internal) on Mon Jan 04 20:48:00 PST 2010 --> 6 <TITLE> 7 Callables (Guava Libraries 2010.01.04) 8 </TITLE> 9 10 <META NAME="date" CONTENT="2010-01-04"> 11 12 <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../../stylesheet.css" TITLE="Style"> 13 14 <SCRIPT type="text/javascript"> 15 function windowTitle() 16 { 17 if (location.href.indexOf('is-external=true') == -1) { 18 parent.document.title="Callables (Guava Libraries 2010.01.04)"; 19 } 20 } 21 </SCRIPT> 22 <NOSCRIPT> 23 </NOSCRIPT> 24 25 </HEAD> 26 27 <BODY BGCOLOR="white" onload="windowTitle();"> 28 <HR> 29 30 31 <!-- ========= START OF TOP NAVBAR ======= --> 32 <A NAME="navbar_top"><!-- --></A> 33 <A HREF="#skip-navbar_top" title="Skip navigation links"></A> 34 <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> 35 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HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A> 96 <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>com.google.common.util.concurrent.Callables</B> 97 </PRE> 98 <HR> 99 <DL> 100 <DT><PRE>public final class <B>Callables</B><DT>extends <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></DL> 101 </PRE> 102 103 <P> 104 Static utility methods pertaining to the <A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/Callable.html?is-external=true" title="class or interface in java.util.concurrent"><CODE>Callable</CODE></A> interface. 105 <P> 106 107 <P> 108 <DL> 109 <DT><B>Since:</B></DT> 110 <DD>2009.09.15 <b>tentative</b></DD> 111 <DT><B>Author:</B></DT> 112 <DD>Isaac Shum</DD> 113 </DL> 114 <HR> 115 116 <P> 117 118 <!-- ========== METHOD SUMMARY =========== --> 119 120 <A NAME="method_summary"><!-- --></A> 121 <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 122 <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 123 <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> 124 <B>Method Summary</B></FONT></TH> 125 </TR> 126 <TR BGCOLOR="white" CLASS="TableRowColor"> 127 <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 128 <CODE>static 129 <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""> 130 <TR ALIGN="right" VALIGN=""> 131 <TD NOWRAP><FONT SIZE="-1"> 132 <CODE><T> <A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/Callable.html?is-external=true" title="class or interface in java.util.concurrent">Callable</A><T></CODE></FONT></TD> 133 </TR> 134 </TABLE> 135 </CODE></FONT></TD> 136 <TD><CODE><B><A HREF="../../../../../com/google/common/util/concurrent/Callables.html#returning(T)">returning</A></B>(T value)</CODE> 137 138 <BR> 139 Creates a <code>Callable</code> which immediately returns a preset value each 140 time it is called.</TD> 141 </TR> 142 </TABLE> 143 <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> 144 <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 145 <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> 146 <TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH> 147 </TR> 148 <TR BGCOLOR="white" CLASS="TableRowColor"> 149 <TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD> 150 </TR> 151 </TABLE> 152 153 <P> 154 155 <!-- ============ METHOD DETAIL ========== --> 156 157 <A NAME="method_detail"><!-- --></A> 158 <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 159 <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 160 <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> 161 <B>Method Detail</B></FONT></TH> 162 </TR> 163 </TABLE> 164 165 <A NAME="returning(java.lang.Object)"><!-- --></A><A NAME="returning(T)"><!-- --></A><H3> 166 returning</H3> 167 <PRE> 168 public static <T> <A HREF="http://java.sun.com/javase/6/docs/api/java/util/concurrent/Callable.html?is-external=true" title="class or interface in java.util.concurrent">Callable</A><T> <B>returning</B>(<FONT SIZE="-1"><A HREF="http://jsr-305.googlecode.com/svn/trunk/javadoc/javax/annotation/Nullable.html?is-external=true" title="class or interface in javax.annotation">@Nullable</A></FONT> 169 T value)</PRE> 170 <DL> 171 <DD>Creates a <code>Callable</code> which immediately returns a preset value each 172 time it is called. 173 <P> 174 <DD><DL> 175 </DL> 176 </DD> 177 </DL> 178 <!-- ========= END OF CLASS DATA ========= --> 179 <HR> 180 181 182 <!-- ======= START OF BOTTOM NAVBAR ====== --> 183 <A NAME="navbar_bottom"><!-- --></A> 184 <A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> 185 <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> 186 <TR> 187 <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> 188 <A NAME="navbar_bottom_firstrow"><!-- --></A> 189 <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> 190 <TR ALIGN="center" VALIGN="top"> 191 <TD BGCOLOR="#EEEEFF" 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