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VelPropertyGet (Commons JEXL 1.1-jenkins-20111212 API)
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org.apache.commons.jexl.util.introspection</FONT>
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Interface VelPropertyGet</H2>
<DL>
<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../../../org/apache/commons/jexl/util/introspection/UberspectImpl.VelGetterImpl.html" title="class in org.apache.commons.jexl.util.introspection">UberspectImpl.VelGetterImpl</A></DD>
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<DT><PRE>public interface <B>VelPropertyGet</B></DL>
</PRE>
<P>
Interface defining a 'getter'. For uses when looking for resolution of
property references
$foo.bar
<P>
<P>
<DL>
<DT><B>Since:</B></DT>
<DD>1.0</DD>
<DT><B>Version:</B></DT>
<DD>$Id: VelPropertyGet.java 584050 2007-10-12 05:27:50Z proyal $</DD>
<DT><B>Author:</B></DT>
<DD><a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a></DD>
</DL>
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<CODE> java.lang.String</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/commons/jexl/util/introspection/VelPropertyGet.html#getMethodName()">getMethodName</A></B>()</CODE>
<BR>
returns the method name used to return this 'property'.</TD>
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<CODE> java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/commons/jexl/util/introspection/VelPropertyGet.html#invoke(java.lang.Object)">invoke</A></B>(java.lang.Object o)</CODE>
<BR>
invocation method - called when the 'get action' should be performed and
a value returned.</TD>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/commons/jexl/util/introspection/VelPropertyGet.html#isAlive()">isAlive</A></B>()</CODE>
<BR>
Tell whether the method underlying this 'property' is alive by
checking to see if represents a successful name resolution.</TD>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../../org/apache/commons/jexl/util/introspection/VelPropertyGet.html#isCacheable()">isCacheable</A></B>()</CODE>
<BR>
specifies if this VelPropertyGet is cacheable and able to be reused for
this class of object it was returned for.</TD>
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<A NAME="invoke(java.lang.Object)"><!-- --></A><H3>
invoke</H3>
<PRE>
java.lang.Object <B>invoke</B>(java.lang.Object o)
throws java.lang.Exception</PRE>
<DL>
<DD>invocation method - called when the 'get action' should be performed and
a value returned.
<P>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>o</CODE> - the object to get the property from.
<DT><B>Returns:</B><DD>the property value.
<DT><B>Throws:</B>
<DD><CODE>java.lang.Exception</CODE> - on any error.</DL>
</DD>
</DL>
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<A NAME="isCacheable()"><!-- --></A><H3>
isCacheable</H3>
<PRE>
boolean <B>isCacheable</B>()</PRE>
<DL>
<DD>specifies if this VelPropertyGet is cacheable and able to be reused for
this class of object it was returned for.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>true if can be reused for this class, false if not</DL>
</DD>
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<A NAME="getMethodName()"><!-- --></A><H3>
getMethodName</H3>
<PRE>
java.lang.String <B>getMethodName</B>()</PRE>
<DL>
<DD>returns the method name used to return this 'property'.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>the method name.</DL>
</DD>
</DL>
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<A NAME="isAlive()"><!-- --></A><H3>
isAlive</H3>
<PRE>
boolean <B>isAlive</B>()</PRE>
<DL>
<DD>Tell whether the method underlying this 'property' is alive by
checking to see if represents a successful name resolution.
<P>
<DD><DL>
<DT><B>Returns:</B><DD>boolean Whether 'property' is alive.</DL>
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