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8ResolvableDeserializer (jackson-databind 2.1.0 API)
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92com.fasterxml.jackson.databind.deser</FONT>
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94Interface ResolvableDeserializer</H2>
95<DL>
96<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../../com/fasterxml/jackson/databind/deser/impl/BeanAsArrayBuilderDeserializer.html" title="class in com.fasterxml.jackson.databind.deser.impl">BeanAsArrayBuilderDeserializer</A>, <A HREF="../../../../../com/fasterxml/jackson/databind/deser/impl/BeanAsArrayDeserializer.html" title="class in com.fasterxml.jackson.databind.deser.impl">BeanAsArrayDeserializer</A>, <A HREF="../../../../../com/fasterxml/jackson/databind/deser/BeanDeserializer.html" title="class in com.fasterxml.jackson.databind.deser">BeanDeserializer</A>, <A HREF="../../../../../com/fasterxml/jackson/databind/deser/BeanDeserializerBase.html" title="class in com.fasterxml.jackson.databind.deser">BeanDeserializerBase</A>, <A HREF="../../../../../com/fasterxml/jackson/databind/deser/BuilderBasedDeserializer.html" title="class in com.fasterxml.jackson.databind.deser">BuilderBasedDeserializer</A>, <A HREF="../../../../../com/fasterxml/jackson/databind/deser/std/DelegatingDeserializer.html" title="class in com.fasterxml.jackson.databind.deser.std">DelegatingDeserializer</A>, <A HREF="../../../../../com/fasterxml/jackson/databind/deser/std/MapDeserializer.html" title="class in com.fasterxml.jackson.databind.deser.std">MapDeserializer</A>, <A HREF="../../../../../com/fasterxml/jackson/databind/deser/std/ThrowableDeserializer.html" title="class in com.fasterxml.jackson.databind.deser.std">ThrowableDeserializer</A></DD>
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100<DT><PRE>public interface <B>ResolvableDeserializer</B></DL>
101</PRE>
102
103<P>
104Interface used to indicate deserializers that want to do post-processing
105 after construction but before being returned to caller (and possibly cached)
106 and used.
107 This is typically used to resolve references
108 to other contained types; for example, bean deserializers use this callback
109 to locate deserializers for contained field types.
110 Main reason for using a callback (instead of trying to resolve dependencies
111 immediately) is to make it possible to cleanly handle self-references;
112 otherwise it would be easy to get into infinite recursion.
113<p>
114 Note that <A HREF="../../../../../com/fasterxml/jackson/databind/deser/ResolvableDeserializer.html#resolve(com.fasterxml.jackson.databind.DeserializationContext)"><CODE>resolve(com.fasterxml.jackson.databind.DeserializationContext)</CODE></A> method does NOT allow returning anything
115 (specifically, a new deserializer instance): reason for this is that
116 allowing this would not work with proper handling of cyclic dependencies,
117 which are resolved by two-phase processing, where initially constructed
118 deserializer is added as known deserializer, and only after this
119 resolution is done. Resolution is the part that results in lookups for
120 dependant deserializers, which may include handling references to
121 deserializer itself.
122<p>
123 Note that in cases where deserializer needs both contextualization and
124 resolution -- that is, implements both this interface and <A HREF="../../../../../com/fasterxml/jackson/databind/deser/ContextualDeserializer.html" title="interface in com.fasterxml.jackson.databind.deser"><CODE>ContextualDeserializer</CODE></A>
125 -- resolution via this interface occurs first, and contextual
126 resolution (using <A HREF="../../../../../com/fasterxml/jackson/databind/deser/ContextualDeserializer.html" title="interface in com.fasterxml.jackson.databind.deser"><CODE>ContextualDeserializer</CODE></A>) later on.
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144<CODE>&nbsp;void</CODE></FONT></TD>
145<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/ResolvableDeserializer.html#resolve(com.fasterxml.jackson.databind.DeserializationContext)">resolve</A></B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A>&nbsp;ctxt)</CODE>
146
147<BR>
148&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Method called after deserializer instance has been constructed
149 (and registered as necessary by provider objects),
150 but before it has returned it to the caller.</TD>
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166<A NAME="resolve(com.fasterxml.jackson.databind.DeserializationContext)"><!-- --></A><H3>
167resolve</H3>
168<PRE>
169void <B>resolve</B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A>&nbsp;ctxt)
170             throws <A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></PRE>
171<DL>
172<DD>Method called after deserializer instance has been constructed
173 (and registered as necessary by provider objects),
174 but before it has returned it to the caller.
175 Called object can then resolve its dependencies to other types,
176 including self-references (direct or indirect).
177<P>
178<DD><DL>
179<DT><B>Parameters:</B><DD><CODE>ctxt</CODE> - Context to use for accessing configuration, resolving
180    secondary deserializers
181<DT><B>Throws:</B>
182<DD><CODE><A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></CODE></DL>
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