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Interpolator (Log4J Core 2.0-alpha1 API)
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org.apache.logging.log4j.core.lookup</FONT>
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Class Interpolator</H2>
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<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.logging.log4j.core.lookup.Interpolator</B>
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<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html" title="interface in org.apache.logging.log4j.core.lookup">StrLookup</A></DD>
</DL>
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<DT><PRE>public class <A HREF="../../../../../../src-html/org/apache/logging/log4j/core/lookup/Interpolator.html#line.31"><B>Interpolator</B></A><DT>extends <A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A><DT>implements <A HREF="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html" title="interface in org.apache.logging.log4j.core.lookup">StrLookup</A></DL>
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<P>
The Interpolator is a StrLookup that acts as a proxy for all the other StrLookups.
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<TD><CODE><B><A HREF="../../../../../../org/apache/logging/log4j/core/lookup/Interpolator.html#Interpolator(org.apache.logging.log4j.core.lookup.StrLookup)">Interpolator</A></B>(<A HREF="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html" title="interface in org.apache.logging.log4j.core.lookup">StrLookup</A>&nbsp;defaultLookup)</CODE>
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<CODE>&nbsp;<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/logging/log4j/core/lookup/Interpolator.html#lookup(org.apache.logging.log4j.core.LogEvent, java.lang.String)">lookup</A></B>(<A HREF="../../../../../../org/apache/logging/log4j/core/LogEvent.html" title="interface in org.apache.logging.log4j.core">LogEvent</A>&nbsp;event,
<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;var)</CODE>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Resolves the specified variable.</TD>
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<CODE>&nbsp;<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/logging/log4j/core/lookup/Interpolator.html#lookup(java.lang.String)">lookup</A></B>(<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;var)</CODE>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Resolves the specified variable.</TD>
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<CODE>&nbsp;<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/logging/log4j/core/lookup/Interpolator.html#toString()">toString</A></B>()</CODE>
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<A NAME="Interpolator(org.apache.logging.log4j.core.lookup.StrLookup)"><!-- --></A><H3>
Interpolator</H3>
<PRE>
public <A HREF="../../../../../../src-html/org/apache/logging/log4j/core/lookup/Interpolator.html#line.42"><B>Interpolator</B></A>(<A HREF="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html" title="interface in org.apache.logging.log4j.core.lookup">StrLookup</A>&nbsp;defaultLookup)</PRE>
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<A NAME="lookup(java.lang.String)"><!-- --></A><H3>
lookup</H3>
<PRE>
public <A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/logging/log4j/core/lookup/Interpolator.html#line.70"><B>lookup</B></A>(<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;var)</PRE>
<DL>
<DD>Resolves the specified variable. This implementation will try to extract
a variable prefix from the given variable name (the first colon (':') is
used as prefix separator). It then passes the name of the variable with
the prefix stripped to the lookup object registered for this prefix. If
no prefix can be found or if the associated lookup object cannot resolve
this variable, the default lookup object will be used.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html#lookup(java.lang.String)">lookup</A></CODE> in interface <CODE><A HREF="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html" title="interface in org.apache.logging.log4j.core.lookup">StrLookup</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>var</CODE> - the name of the variable whose value is to be looked up
<DT><B>Returns:</B><DD>the value of this variable or <b>null</b> if it cannot be
resolved</DL>
</DD>
</DL>
<HR>
<A NAME="lookup(org.apache.logging.log4j.core.LogEvent, java.lang.String)"><!-- --></A><H3>
lookup</H3>
<PRE>
public <A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/logging/log4j/core/lookup/Interpolator.html#line.87"><B>lookup</B></A>(<A HREF="../../../../../../org/apache/logging/log4j/core/LogEvent.html" title="interface in org.apache.logging.log4j.core">LogEvent</A>&nbsp;event,
<A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A>&nbsp;var)</PRE>
<DL>
<DD>Resolves the specified variable. This implementation will try to extract
a variable prefix from the given variable name (the first colon (':') is
used as prefix separator). It then passes the name of the variable with
the prefix stripped to the lookup object registered for this prefix. If
no prefix can be found or if the associated lookup object cannot resolve
this variable, the default lookup object will be used.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html#lookup(org.apache.logging.log4j.core.LogEvent, java.lang.String)">lookup</A></CODE> in interface <CODE><A HREF="../../../../../../org/apache/logging/log4j/core/lookup/StrLookup.html" title="interface in org.apache.logging.log4j.core.lookup">StrLookup</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>event</CODE> - The current LogEvent or null.<DD><CODE>var</CODE> - the name of the variable whose value is to be looked up
<DT><B>Returns:</B><DD>the value of this variable or <b>null</b> if it cannot be
resolved</DL>
</DD>
</DL>
<HR>
<A NAME="toString()"><!-- --></A><H3>
toString</H3>
<PRE>
public <A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <A HREF="../../../../../../src-html/org/apache/logging/log4j/core/lookup/Interpolator.html#line.113"><B>toString</B></A>()</PRE>
<DL>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A></CODE> in class <CODE><A HREF="http://download.oracle.com/javase/1.5.0/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></CODE></DL>
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