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> 7Callables (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"> 15function 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<TR> 36<TD COLSPAN=2 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FRAMES</B></A> 63 <SCRIPT type="text/javascript"> 64 <!-- 65 if(window==top) { 66 document.writeln('<A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A>'); 67 } 68 //--> 69</SCRIPT> 70<NOSCRIPT> 71 <A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A> 72</NOSCRIPT> 73 74 75</FONT></TD> 76</TR> 77<TR> 78<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> 79 SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD> 80<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> 81DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD> 82</TR> 83</TABLE> 84<A NAME="skip-navbar_top"></A> 85<!-- ========= END OF TOP NAVBAR ========= --> 86 87<HR> 88<!-- ======== START OF CLASS DATA ======== --> 89<H2> 90<FONT SIZE="-1"> 91com.google.common.util.concurrent</FONT> 92<BR> 93Class Callables</H2> 94<PRE> 95<A 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> 104Static 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> 166returning</H3> 167<PRE> 168public 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" CLASS="NavBarCell1"> <A HREF="../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> 192 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT 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