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AbstractNode (Java-Erlang Interface Library)
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com.ericsson.otp.erlang</FONT>
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Class AbstractNode</H2>
<PRE>
java.lang.Object
<IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>com.ericsson.otp.erlang.AbstractNode</B>
</PRE>
<DL>
<DT><B>Direct Known Subclasses:</B> <DD><A HREF="../../../../com/ericsson/otp/erlang/OtpLocalNode.html" title="class in com.ericsson.otp.erlang">OtpLocalNode</A>, <A HREF="../../../../com/ericsson/otp/erlang/OtpPeer.html" title="class in com.ericsson.otp.erlang">OtpPeer</A></DD>
</DL>
<HR>
<DL>
<DT><PRE>public class <B>AbstractNode</B><DT>extends java.lang.Object</DL>
</PRE>
<P>
<p>
Represents an OTP node.
</p>
<p>
About nodenames: Erlang nodenames consist of two components, an alivename and
a hostname separated by '@'. Additionally, there are two nodename formats:
short and long. Short names are of the form "alive@hostname", while long
names are of the form "alive@host.fully.qualified.domainname". Erlang has
special requirements regarding the use of the short and long formats, in
particular they cannot be mixed freely in a network of communicating nodes,
however Jinterface makes no distinction. See the Erlang documentation for
more information about nodenames.
</p>
<p>
The constructors for the AbstractNode classes will create names exactly as
you provide them as long as the name contains '@'. If the string you provide
contains no '@', it will be treated as an alivename and the name of the local
host will be appended, resulting in a shortname. Nodenames longer than 255
characters will be truncated without warning.
</p>
<p>
Upon initialization, this class attempts to read the file .erlang.cookie in
the user's home directory, and uses the trimmed first line of the file as the
default cookie by those constructors lacking a cookie argument. If for any
reason the file cannot be found or read, the default cookie will be set to
the empty string (""). The location of a user's home directory is determined
using the system property "user.home", which may not be automatically set on
all platforms.
</p>
<p>
Instances of this class cannot be created directly, use one of the subclasses
instead.
</p>
<P>
<P>
<HR>
<P>
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<CODE>protected </CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/ericsson/otp/erlang/AbstractNode.html#AbstractNode()">AbstractNode</A></B>()</CODE>
<BR>
</TD>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected </CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/ericsson/otp/erlang/AbstractNode.html#AbstractNode(java.lang.String)">AbstractNode</A></B>(java.lang.String node)</CODE>
<BR>
Create a node with the given name and the default cookie.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected </CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/ericsson/otp/erlang/AbstractNode.html#AbstractNode(java.lang.String, java.lang.String)">AbstractNode</A></B>(java.lang.String name,
java.lang.String cookie)</CODE>
<BR>
Create a node with the given name and cookie.</TD>
</TR>
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<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../com/ericsson/otp/erlang/AbstractNode.html#alive()">alive</A></B>()</CODE>
<BR>
Get the alivename part of the hostname.</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/ericsson/otp/erlang/AbstractNode.html#cookie()">cookie</A></B>()</CODE>
<BR>
Get the authorization cookie used by this node.</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/ericsson/otp/erlang/AbstractNode.html#host()">host</A></B>()</CODE>
<BR>
Get the hostname part of the nodename.</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/ericsson/otp/erlang/AbstractNode.html#node()">node</A></B>()</CODE>
<BR>
Get the name of this node.</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/ericsson/otp/erlang/AbstractNode.html#setCookie(java.lang.String)">setCookie</A></B>(java.lang.String cookie)</CODE>
<BR>
Set the authorization cookie used by this node.</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/ericsson/otp/erlang/AbstractNode.html#toString()">toString</A></B>()</CODE>
<BR>
</TD>
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<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait</CODE></TD>
</TR>
</TABLE>
<P>
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<A NAME="AbstractNode()"><!-- --></A><H3>
AbstractNode</H3>
<PRE>
protected <B>AbstractNode</B>()</PRE>
<DL>
</DL>
<HR>
<A NAME="AbstractNode(java.lang.String)"><!-- --></A><H3>
AbstractNode</H3>
<PRE>
protected <B>AbstractNode</B>(java.lang.String node)</PRE>
<DL>
<DD>Create a node with the given name and the default cookie.
<P>
</DL>
<HR>
<A NAME="AbstractNode(java.lang.String, java.lang.String)"><!-- --></A><H3>
AbstractNode</H3>
<PRE>
protected <B>AbstractNode</B>(java.lang.String name,
java.lang.String cookie)</PRE>
<DL>
<DD>Create a node with the given name and cookie.
<P>
</DL>
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<A NAME="node()"><!-- --></A><H3>
node</H3>
<PRE>
public java.lang.String <B>node</B>()</PRE>
<DL>
<DD>Get the name of this node.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the name of the node represented by this object.</DL>
</DD>
</DL>
<HR>
<A NAME="host()"><!-- --></A><H3>
host</H3>
<PRE>
public java.lang.String <B>host</B>()</PRE>
<DL>
<DD>Get the hostname part of the nodename. Nodenames are composed of two
parts, an alivename and a hostname, separated by '@'. This method returns
the part of the nodename following the '@'.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the hostname component of the nodename.</DL>
</DD>
</DL>
<HR>
<A NAME="alive()"><!-- --></A><H3>
alive</H3>
<PRE>
public java.lang.String <B>alive</B>()</PRE>
<DL>
<DD>Get the alivename part of the hostname. Nodenames are composed of two
parts, an alivename and a hostname, separated by '@'. This method returns
the part of the nodename preceding the '@'.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the alivename component of the nodename.</DL>
</DD>
</DL>
<HR>
<A NAME="cookie()"><!-- --></A><H3>
cookie</H3>
<PRE>
public java.lang.String <B>cookie</B>()</PRE>
<DL>
<DD>Get the authorization cookie used by this node.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the authorization cookie used by this node.</DL>
</DD>
</DL>
<HR>
<A NAME="setCookie(java.lang.String)"><!-- --></A><H3>
setCookie</H3>
<PRE>
public java.lang.String <B>setCookie</B>(java.lang.String cookie)</PRE>
<DL>
<DD>Set the authorization cookie used by this node.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the previous authorization cookie used by this node.</DL>
</DD>
</DL>
<HR>
<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public java.lang.String <B>toString</B>()</PRE>
<DL>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE>toString</CODE> in class <CODE>java.lang.Object</CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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