<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!--NewPage--> <HTML> <HEAD> <!-- Generated by javadoc (build 1.6.0-google-internal) on Wed Aug 25 11:30:14 CDT 2010 --> <TITLE> SystemProperty </TITLE> <META NAME="date" CONTENT="2010-08-25"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../../dev_javadoc.css" TITLE="Style"> <SCRIPT type="text/javascript"> function windowTitle() { if (location.href.indexOf('is-external=true') == -1) { parent.document.title="SystemProperty"; } } </SCRIPT> <NOSCRIPT> </NOSCRIPT> </HEAD> <BODY BGCOLOR="white" onload="windowTitle();"> <HR> <!-- ========= START OF TOP NAVBAR ======= --> <A NAME="navbar_top"><!-- --></A> <A HREF="#skip-navbar_top" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_top_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" 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</TABLE> </TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> </EM> </TD> </TR> <TR> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../com/google/appengine/api/utils/FutureWrapper.html" title="class in com.google.appengine.api.utils"><B>PREV CLASS</B></A> <A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.Environment.html" title="class in com.google.appengine.api.utils"><B>NEXT CLASS</B></A></FONT></TD> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../index.html?com/google/appengine/api/utils/SystemProperty.html" target="_top"><B>FRAMES</B></A> <A HREF="SystemProperty.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--> </SCRIPT> <NOSCRIPT> <A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A> </NOSCRIPT> </FONT></TD> </TR> <TR> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: <A HREF="#nested_class_summary">NESTED</A> | <A HREF="#field_summary">FIELD</A> | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> DETAIL: <A HREF="#field_detail">FIELD</A> | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD> </TR> </TABLE> <A NAME="skip-navbar_top"></A> <!-- ========= END OF TOP NAVBAR ========= --> <HR> <!-- ======== START OF CLASS DATA ======== --> <H2> <FONT SIZE="-1"> com.google.appengine.api.utils</FONT> <BR> Class SystemProperty</H2> <PRE> java.lang.Object <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>com.google.appengine.api.utils.SystemProperty</B> </PRE> <DL> <DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.Environment.html" title="class in com.google.appengine.api.utils">SystemProperty.Environment</A></DD> </DL> <HR> <DL> <DT><PRE>public class <B>SystemProperty</B><DT>extends java.lang.Object</DL> </PRE> <P> Global system properties which are set by App Engine. <p> Example code: <pre> if (SystemProperty.environment.value() == SystemProperty.Environment.Value.Production) { // do something that's production-only } String version = SystemProperty.version.get(); </pre> <P> <P> <HR> <P> <!-- ======== NESTED CLASS SUMMARY ======== --> <A NAME="nested_class_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Nested Class Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>static class</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.Environment.html" title="class in com.google.appengine.api.utils">SystemProperty.Environment</A></B></CODE> <BR> The current executing environment.</TD> </TR> </TABLE> <!-- =========== FIELD SUMMARY =========== --> <A NAME="field_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Field Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>static <A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html" title="class in com.google.appengine.api.utils">SystemProperty</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html#applicationId">applicationId</A></B></CODE> <BR> The application identifier for the current application.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>static <A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html" title="class in com.google.appengine.api.utils">SystemProperty</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html#applicationVersion">applicationVersion</A></B></CODE> <BR> The major version number for the currently running version of the application plus a timestamp at which it was deployed.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>static <A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.Environment.html" title="class in com.google.appengine.api.utils">SystemProperty.Environment</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html#environment">environment</A></B></CODE> <BR> The current executing environment.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>static <A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html" title="class in com.google.appengine.api.utils">SystemProperty</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html#instanceReplicaId">instanceReplicaId</A></B></CODE> <BR> </TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE>static <A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html" title="class in com.google.appengine.api.utils">SystemProperty</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html#version">version</A></B></CODE> <BR> The current executing runtime version.</TD> </TR> </TABLE> <!-- ========== METHOD SUMMARY =========== --> <A NAME="method_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Method Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> java.lang.String</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html#get()">get</A></B>()</CODE> <BR> Gets the value of the system property.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> java.lang.String</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html#key()">key</A></B>()</CODE> <BR> The key for the system property.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html#set(java.lang.String)">set</A></B>(java.lang.String value)</CODE> <BR> Sets the value of the system property.</TD> </TR> </TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE>equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD> </TR> </TABLE> <P> <!-- ============ FIELD DETAIL =========== --> <A NAME="field_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Field Detail</B></FONT></TH> </TR> </TABLE> <A NAME="environment"><!-- --></A><H3> environment</H3> <PRE> public static final <A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.Environment.html" title="class in com.google.appengine.api.utils">SystemProperty.Environment</A> <B>environment</B></PRE> <DL> <DD>The current executing environment. Has the key, <code>"com.google.appengine.runtime.environment"</code>. Has the values <code>"Production"</code> and <code>"Development"</code>. <P> <DL> </DL> </DL> <HR> <A NAME="version"><!-- --></A><H3> version</H3> <PRE> public static final <A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html" title="class in com.google.appengine.api.utils">SystemProperty</A> <B>version</B></PRE> <DL> <DD>The current executing runtime version. Has the key, <code>"com.google.appengine.runtime.version"</code>. A Version value is composed of period-separated integers, for example, "1.2.8". <P> <DL> </DL> </DL> <HR> <A NAME="applicationId"><!-- --></A><H3> applicationId</H3> <PRE> public static final <A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html" title="class in com.google.appengine.api.utils">SystemProperty</A> <B>applicationId</B></PRE> <DL> <DD>The application identifier for the current application. Has the key, <code>"com.google.appengine.application.id"</code>. <P> <DL> </DL> </DL> <HR> <A NAME="applicationVersion"><!-- --></A><H3> applicationVersion</H3> <PRE> public static final <A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html" title="class in com.google.appengine.api.utils">SystemProperty</A> <B>applicationVersion</B></PRE> <DL> <DD>The major version number for the currently running version of the application plus a timestamp at which it was deployed. Has the key, <code>"com.google.appengine.application.version"</code>. <P> <DL> </DL> </DL> <HR> <A NAME="instanceReplicaId"><!-- --></A><H3> instanceReplicaId</H3> <PRE> public static final <A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.html" title="class in com.google.appengine.api.utils">SystemProperty</A> <B>instanceReplicaId</B></PRE> <DL> <DL> </DL> </DL> <!-- ============ METHOD DETAIL ========== --> <A NAME="method_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Method Detail</B></FONT></TH> </TR> </TABLE> <A NAME="key()"><!-- --></A><H3> key</H3> <PRE> public java.lang.String <B>key</B>()</PRE> <DL> <DD>The key for the system property. <P> <DD><DL> </DL> </DD> </DL> <HR> <A NAME="get()"><!-- --></A><H3> get</H3> <PRE> public java.lang.String <B>get</B>()</PRE> <DL> <DD>Gets the value of the system property. Equivalent to <code>System.getProperty(key())</code>. <P> <DD><DL> </DL> </DD> </DL> <HR> <A NAME="set(java.lang.String)"><!-- --></A><H3> set</H3> <PRE> public void <B>set</B>(java.lang.String value)</PRE> <DL> <DD>Sets the value of the system property. Equivalent to <code>System.setProperty(key(), value)</code>. <P> <DD><DL> </DL> </DD> </DL> <!-- ========= END OF CLASS DATA ========= --> <HR> <!-- ======= START OF BOTTOM NAVBAR ====== --> <A NAME="navbar_bottom"><!-- --></A> <A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_bottom_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR> </TABLE> </TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> </EM> </TD> </TR> <TR> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../com/google/appengine/api/utils/FutureWrapper.html" title="class in com.google.appengine.api.utils"><B>PREV CLASS</B></A> <A HREF="../../../../../com/google/appengine/api/utils/SystemProperty.Environment.html" title="class in com.google.appengine.api.utils"><B>NEXT CLASS</B></A></FONT></TD> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../../index.html?com/google/appengine/api/utils/SystemProperty.html" target="_top"><B>FRAMES</B></A> <A HREF="SystemProperty.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--> </SCRIPT> <NOSCRIPT> <A HREF="../../../../../allclasses-noframe.html"><B>All Classes</B></A> </NOSCRIPT> </FONT></TD> </TR> <TR> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: <A HREF="#nested_class_summary">NESTED</A> | <A HREF="#field_summary">FIELD</A> | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> DETAIL: <A HREF="#field_detail">FIELD</A> | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD> </TR> </TABLE> <A NAME="skip-navbar_bottom"></A> <!-- ======== END OF BOTTOM NAVBAR ======= --> <HR> </BODY> </HTML>