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NullHandler (OGNL)
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ognl</FONT>
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Interface NullHandler</H2>
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<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../ognl/ObjectNullHandler.html" title="class in ognl">ObjectNullHandler</A></DD>
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<DT>public interface <B>NullHandler</B></DL>
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Interface for handling null results from Chains. Object has the opportunity to substitute an object for the null and continue.
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<DT><B>Author:</B></DT> <DD>Luke Blanshard (blanshlu@netscape.net), Drew Davidson (drew@ognl.org)</DD></DL>
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<CODE> java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../ognl/NullHandler.html#nullMethodResult(java.util.Map, java.lang.Object, java.lang.String, java.lang.Object[])">nullMethodResult</A></B>(java.util.Map context, java.lang.Object target, java.lang.String methodName, java.lang.Object[] args)</CODE>
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Method called on target returned null.</TD>
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<CODE> java.lang.Object</CODE></FONT></TD>
<TD><CODE><B><A HREF="../ognl/NullHandler.html#nullPropertyValue(java.util.Map, java.lang.Object, java.lang.Object)">nullPropertyValue</A></B>(java.util.Map context, java.lang.Object target, java.lang.Object property)</CODE>
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Property in target evaluated to null.</TD>
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<A NAME="nullMethodResult(java.util.Map, java.lang.Object, java.lang.String, java.lang.Object[])"><!-- --></A><H3>
nullMethodResult</H3>
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public java.lang.Object <B>nullMethodResult</B>(java.util.Map context, java.lang.Object target, java.lang.String methodName, java.lang.Object[] args)</PRE>
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<DD>Method called on target returned null.
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nullPropertyValue</H3>
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public java.lang.Object <B>nullPropertyValue</B>(java.util.Map context, java.lang.Object target, java.lang.Object property)</PRE>
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<DD>Property in target evaluated to null. Property can be a constant String property name or a DynamicSubscript.
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