source: proiecte/HadoopJUnit/hadoop-0.20.1/docs/api/org/apache/hadoop/util/NativeCodeLoader.html @ 120

Last change on this file since 120 was 120, checked in by (none), 14 years ago

Added the mail files for the Hadoop JUNit Project
  • Property svn:executable set to *
File size: 14.5 KB
Line 
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_07) on Tue Sep 01 20:56:55 UTC 2009 -->
6<TITLE>
7NativeCodeLoader (Hadoop 0.20.1 API)
8</TITLE>
9
10<META NAME="date" CONTENT="2009-09-01">
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="NativeCodeLoader (Hadoop 0.20.1 API)";
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 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
37<A NAME="navbar_top_firstrow"><!-- --></A>
38<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY="">
39  <TR ALIGN="center" VALIGN="top">
40  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A>&nbsp;</TD>
41  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>
42  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT>&nbsp;</TD>
43  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="class-use/NativeCodeLoader.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A>&nbsp;</TD>
44  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>
45  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A>&nbsp;</TD>
46  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A>&nbsp;</TD>
47  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A>&nbsp;</TD>
48  </TR>
49</TABLE>
50</TD>
51<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
52</EM>
53</TD>
54</TR>
55
56<TR>
57<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
58&nbsp;<A HREF="../../../../org/apache/hadoop/util/MergeSort.html" title="class in org.apache.hadoop.util"><B>PREV CLASS</B></A>&nbsp;
59&nbsp;<A HREF="../../../../org/apache/hadoop/util/PlatformName.html" title="class in org.apache.hadoop.util"><B>NEXT CLASS</B></A></FONT></TD>
60<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
61  <A HREF="../../../../index.html?org/apache/hadoop/util/NativeCodeLoader.html" target="_top"><B>FRAMES</B></A>  &nbsp;
62&nbsp;<A HREF="NativeCodeLoader.html" target="_top"><B>NO FRAMES</B></A>  &nbsp;
63&nbsp;<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:&nbsp;NESTED&nbsp;|&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
80<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
81DETAIL:&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_detail">CONSTR</A>&nbsp;|&nbsp;<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">
91org.apache.hadoop.util</FONT>
92<BR>
93Class NativeCodeLoader</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>org.apache.hadoop.util.NativeCodeLoader</B>
97</PRE>
98<HR>
99<DL>
100<DT><PRE>public class <B>NativeCodeLoader</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>
104A helper to load the native hadoop code i.e. libhadoop.so.
105 This handles the fallback to either the bundled libhadoop-Linux-i386-32.so
106 or the default java implementations where appropriate.
107<P>
108
109<P>
110<HR>
111
112<P>
113
114<!-- ======== CONSTRUCTOR SUMMARY ======== -->
115
116<A NAME="constructor_summary"><!-- --></A>
117<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
118<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
119<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
120<B>Constructor Summary</B></FONT></TH>
121</TR>
122<TR BGCOLOR="white" CLASS="TableRowColor">
123<TD><CODE><B><A HREF="../../../../org/apache/hadoop/util/NativeCodeLoader.html#NativeCodeLoader()">NativeCodeLoader</A></B>()</CODE>
124
125<BR>
126&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
127</TR>
128</TABLE>
129&nbsp;
130<!-- ========== METHOD SUMMARY =========== -->
131
132<A NAME="method_summary"><!-- --></A>
133<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
134<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
135<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
136<B>Method Summary</B></FONT></TH>
137</TR>
138<TR BGCOLOR="white" CLASS="TableRowColor">
139<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
140<CODE>&nbsp;boolean</CODE></FONT></TD>
141<TD><CODE><B><A HREF="../../../../org/apache/hadoop/util/NativeCodeLoader.html#getLoadNativeLibraries(org.apache.hadoop.conf.Configuration)">getLoadNativeLibraries</A></B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf)</CODE>
142
143<BR>
144&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Return if native hadoop libraries, if present, can be used for this job.</TD>
145</TR>
146<TR BGCOLOR="white" CLASS="TableRowColor">
147<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
148<CODE>static&nbsp;boolean</CODE></FONT></TD>
149<TD><CODE><B><A HREF="../../../../org/apache/hadoop/util/NativeCodeLoader.html#isNativeCodeLoaded()">isNativeCodeLoaded</A></B>()</CODE>
150
151<BR>
152&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Check if native-hadoop code is loaded for this platform.</TD>
153</TR>
154<TR BGCOLOR="white" CLASS="TableRowColor">
155<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
156<CODE>&nbsp;void</CODE></FONT></TD>
157<TD><CODE><B><A HREF="../../../../org/apache/hadoop/util/NativeCodeLoader.html#setLoadNativeLibraries(org.apache.hadoop.conf.Configuration, boolean)">setLoadNativeLibraries</A></B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf,
158                       boolean&nbsp;loadNativeLibraries)</CODE>
159
160<BR>
161&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Set if native hadoop libraries, if present, can be used for this job.</TD>
162</TR>
163</TABLE>
164&nbsp;<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
165<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
166<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
167<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>
168</TR>
169<TR BGCOLOR="white" CLASS="TableRowColor">
170<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>
171</TR>
172</TABLE>
173&nbsp;
174<P>
175
176<!-- ========= CONSTRUCTOR DETAIL ======== -->
177
178<A NAME="constructor_detail"><!-- --></A>
179<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
180<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
181<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
182<B>Constructor Detail</B></FONT></TH>
183</TR>
184</TABLE>
185
186<A NAME="NativeCodeLoader()"><!-- --></A><H3>
187NativeCodeLoader</H3>
188<PRE>
189public <B>NativeCodeLoader</B>()</PRE>
190<DL>
191</DL>
192
193<!-- ============ METHOD DETAIL ========== -->
194
195<A NAME="method_detail"><!-- --></A>
196<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
197<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
198<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
199<B>Method Detail</B></FONT></TH>
200</TR>
201</TABLE>
202
203<A NAME="isNativeCodeLoaded()"><!-- --></A><H3>
204isNativeCodeLoaded</H3>
205<PRE>
206public static boolean <B>isNativeCodeLoaded</B>()</PRE>
207<DL>
208<DD>Check if native-hadoop code is loaded for this platform.
209<P>
210<DD><DL>
211
212<DT><B>Returns:</B><DD><code>true</code> if native-hadoop is loaded,
213         else <code>false</code></DL>
214</DD>
215</DL>
216<HR>
217
218<A NAME="getLoadNativeLibraries(org.apache.hadoop.conf.Configuration)"><!-- --></A><H3>
219getLoadNativeLibraries</H3>
220<PRE>
221public boolean <B>getLoadNativeLibraries</B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf)</PRE>
222<DL>
223<DD>Return if native hadoop libraries, if present, can be used for this job.
224<P>
225<DD><DL>
226<DT><B>Parameters:</B><DD><CODE>conf</CODE> - configuration
227<DT><B>Returns:</B><DD><code>true</code> if native hadoop libraries, if present, can be
228         used for this job; <code>false</code> otherwise.</DL>
229</DD>
230</DL>
231<HR>
232
233<A NAME="setLoadNativeLibraries(org.apache.hadoop.conf.Configuration, boolean)"><!-- --></A><H3>
234setLoadNativeLibraries</H3>
235<PRE>
236public void <B>setLoadNativeLibraries</B>(<A HREF="../../../../org/apache/hadoop/conf/Configuration.html" title="class in org.apache.hadoop.conf">Configuration</A>&nbsp;conf,
237                                   boolean&nbsp;loadNativeLibraries)</PRE>
238<DL>
239<DD>Set if native hadoop libraries, if present, can be used for this job.
240<P>
241<DD><DL>
242<DT><B>Parameters:</B><DD><CODE>conf</CODE> - configuration<DD><CODE>loadNativeLibraries</CODE> - can native hadoop libraries be loaded</DL>
243</DD>
244</DL>
245<!-- ========= END OF CLASS DATA ========= -->
246<HR>
247
248
249<!-- ======= START OF BOTTOM NAVBAR ====== -->
250<A NAME="navbar_bottom"><!-- --></A>
251<A HREF="#skip-navbar_bottom" title="Skip navigation links"></A>
252<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY="">
253<TR>
254<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1">
255<A NAME="navbar_bottom_firstrow"><!-- --></A>
256<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY="">
257  <TR ALIGN="center" VALIGN="top">
258  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A>&nbsp;</TD>
259  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A>&nbsp;</TD>
260  <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> &nbsp;<FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT>&nbsp;</TD>
261  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="class-use/NativeCodeLoader.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A>&nbsp;</TD>
262  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A>&nbsp;</TD>
263  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A>&nbsp;</TD>
264  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A>&nbsp;</TD>
265  <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1">    <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A>&nbsp;</TD>
266  </TR>
267</TABLE>
268</TD>
269<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM>
270</EM>
271</TD>
272</TR>
273
274<TR>
275<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
276&nbsp;<A HREF="../../../../org/apache/hadoop/util/MergeSort.html" title="class in org.apache.hadoop.util"><B>PREV CLASS</B></A>&nbsp;
277&nbsp;<A HREF="../../../../org/apache/hadoop/util/PlatformName.html" title="class in org.apache.hadoop.util"><B>NEXT CLASS</B></A></FONT></TD>
278<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2">
279  <A HREF="../../../../index.html?org/apache/hadoop/util/NativeCodeLoader.html" target="_top"><B>FRAMES</B></A>  &nbsp;
280&nbsp;<A HREF="NativeCodeLoader.html" target="_top"><B>NO FRAMES</B></A>  &nbsp;
281&nbsp;<SCRIPT type="text/javascript">
282  <!--
283  if(window==top) {
284    document.writeln('<A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A>');
285  }
286  //-->
287</SCRIPT>
288<NOSCRIPT>
289  <A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A>
290</NOSCRIPT>
291
292
293</FONT></TD>
294</TR>
295<TR>
296<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
297  SUMMARY:&nbsp;NESTED&nbsp;|&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_summary">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_summary">METHOD</A></FONT></TD>
298<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2">
299DETAIL:&nbsp;FIELD&nbsp;|&nbsp;<A HREF="#constructor_detail">CONSTR</A>&nbsp;|&nbsp;<A HREF="#method_detail">METHOD</A></FONT></TD>
300</TR>
301</TABLE>
302<A NAME="skip-navbar_bottom"></A>
303<!-- ======== END OF BOTTOM NAVBAR ======= -->
304
305<HR>
306Copyright &copy; 2009 The Apache Software Foundation
307</BODY>
308</HTML>
Note: See TracBrowser for help on using the repository browser.