1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<!--NewPage--> 3<HTML> 4<HEAD> 5<!-- Generated by javadoc (build 1.6.0_29) on Mon Mar 26 19:07:13 PDT 2012 --> 6<META http-equiv="Content-Type" content="text/html; charset=UTF-8"> 7<TITLE> 8DeserializerCache (jackson-databind 2.0.0 API) 9</TITLE> 10 11<META NAME="date" CONTENT="2012-03-26"> 12 13<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../../stylesheet.css" TITLE="Style"> 14 15<SCRIPT type="text/javascript"> 16function windowTitle() 17{ 18 if (location.href.indexOf('is-external=true') == -1) { 19 parent.document.title="DeserializerCache (jackson-databind 2.0.0 API)"; 20 } 21} 22</SCRIPT> 23<NOSCRIPT> 24</NOSCRIPT> 25 26</HEAD> 27 28<BODY BGCOLOR="white" onload="windowTitle();"> 29<HR> 30 31 32<!-- ========= START OF TOP NAVBAR ======= --> 33<A NAME="navbar_top"><!-- --></A> 34<A HREF="#skip-navbar_top" title="Skip navigation links"></A> 35<TABLE BORDER="0" WIDTH="100%" 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NAVBAR ========= --> 87 88<HR> 89<!-- ======== START OF CLASS DATA ======== --> 90<H2> 91<FONT SIZE="-1"> 92com.fasterxml.jackson.databind.deser</FONT> 93<BR> 94Class DeserializerCache</H2> 95<PRE> 96<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A> 97 <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>com.fasterxml.jackson.databind.deser.DeserializerCache</B> 98</PRE> 99<HR> 100<DL> 101<DT><PRE>public final class <B>DeserializerCache</B><DT>extends <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></DL> 102</PRE> 103 104<P> 105Class that defines caching layer between callers (like 106 <A HREF="../../../../../com/fasterxml/jackson/databind/ObjectMapper.html" title="class in com.fasterxml.jackson.databind"><CODE>ObjectMapper</CODE></A>, 107 <A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind"><CODE>DeserializationContext</CODE></A>) 108 and classes that construct deserializers 109 (<A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerFactory.html" title="class in com.fasterxml.jackson.databind.deser"><CODE>DeserializerFactory</CODE></A>). 110<P> 111 112<P> 113<HR> 114 115<P> 116<!-- =========== FIELD SUMMARY =========== --> 117 118<A NAME="field_summary"><!-- --></A> 119<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 120<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 121<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> 122<B>Field Summary</B></FONT></TH> 123</TR> 124<TR BGCOLOR="white" CLASS="TableRowColor"> 125<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 126<CODE>protected <A HREF="http://docs.oracle.com/javase/6/docs/api/java/util/concurrent/ConcurrentHashMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentHashMap</A><<A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A>,<A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>>></CODE></FONT></TD> 127<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#_cachedDeserializers">_cachedDeserializers</A></B></CODE> 128 129<BR> 130 We will also cache some dynamically constructed deserializers; 131 specifically, ones that are expensive to construct.</TD> 132</TR> 133<TR BGCOLOR="white" CLASS="TableRowColor"> 134<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 135<CODE>protected <A HREF="http://docs.oracle.com/javase/6/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</A><<A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A>,<A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>>></CODE></FONT></TD> 136<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#_incompleteDeserializers">_incompleteDeserializers</A></B></CODE> 137 138<BR> 139 During deserializer construction process we may need to keep track of partially 140 completed deserializers, to resolve cyclic dependencies.</TD> 141</TR> 142</TABLE> 143 144<!-- ======== CONSTRUCTOR SUMMARY ======== --> 145 146<A NAME="constructor_summary"><!-- --></A> 147<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 148<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 149<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> 150<B>Constructor Summary</B></FONT></TH> 151</TR> 152<TR BGCOLOR="white" CLASS="TableRowColor"> 153<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#DeserializerCache()">DeserializerCache</A></B>()</CODE> 154 155<BR> 156 </TD> 157</TR> 158</TABLE> 159 160<!-- ========== METHOD SUMMARY =========== --> 161 162<A NAME="method_summary"><!-- --></A> 163<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 164<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 165<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> 166<B>Method Summary</B></FONT></TH> 167</TR> 168<TR BGCOLOR="white" CLASS="TableRowColor"> 169<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 170<CODE>protected <A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>></CODE></FONT></TD> 171<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#_createAndCache2(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.deser.DeserializerFactory, com.fasterxml.jackson.databind.JavaType)">_createAndCache2</A></B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A> ctxt, 172 <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerFactory.html" title="class in com.fasterxml.jackson.databind.deser">DeserializerFactory</A> factory, 173 <A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type)</CODE> 174 175<BR> 176 Method that handles actual construction (via factory) and caching (both 177 intermediate and eventual)</TD> 178</TR> 179<TR BGCOLOR="white" CLASS="TableRowColor"> 180<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 181<CODE>protected <A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>></CODE></FONT></TD> 182<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#_createAndCacheValueDeserializer(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.deser.DeserializerFactory, com.fasterxml.jackson.databind.JavaType)">_createAndCacheValueDeserializer</A></B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A> ctxt, 183 <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerFactory.html" title="class in com.fasterxml.jackson.databind.deser">DeserializerFactory</A> factory, 184 <A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type)</CODE> 185 186<BR> 187 Method that will try to create a deserializer for given type, 188 and resolve and cache it if necessary</TD> 189</TR> 190<TR BGCOLOR="white" CLASS="TableRowColor"> 191<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 192<CODE>protected <A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>></CODE></FONT></TD> 193<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#_createDeserializer(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.deser.DeserializerFactory, com.fasterxml.jackson.databind.JavaType)">_createDeserializer</A></B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A> ctxt, 194 <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerFactory.html" title="class in com.fasterxml.jackson.databind.deser">DeserializerFactory</A> factory, 195 <A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type)</CODE> 196 197<BR> 198 Method that does the heavy lifting of checking for per-type annotations, 199 find out full type, and figure out which actual factory method 200 to call.</TD> 201</TR> 202<TR BGCOLOR="white" CLASS="TableRowColor"> 203<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 204<CODE>protected <A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>></CODE></FONT></TD> 205<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#_findCachedDeserializer(com.fasterxml.jackson.databind.JavaType)">_findCachedDeserializer</A></B>(<A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type)</CODE> 206 207<BR> 208 </TD> 209</TR> 210<TR BGCOLOR="white" CLASS="TableRowColor"> 211<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 212<CODE>protected <A HREF="../../../../../com/fasterxml/jackson/databind/KeyDeserializer.html" title="class in com.fasterxml.jackson.databind">KeyDeserializer</A></CODE></FONT></TD> 213<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#_handleUnknownKeyDeserializer(com.fasterxml.jackson.databind.JavaType)">_handleUnknownKeyDeserializer</A></B>(<A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type)</CODE> 214 215<BR> 216 </TD> 217</TR> 218<TR BGCOLOR="white" CLASS="TableRowColor"> 219<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 220<CODE>protected <A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>></CODE></FONT></TD> 221<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#_handleUnknownValueDeserializer(com.fasterxml.jackson.databind.JavaType)">_handleUnknownValueDeserializer</A></B>(<A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type)</CODE> 222 223<BR> 224 </TD> 225</TR> 226<TR BGCOLOR="white" CLASS="TableRowColor"> 227<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 228<CODE> int</CODE></FONT></TD> 229<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#cachedDeserializersCount()">cachedDeserializersCount</A></B>()</CODE> 230 231<BR> 232 Method that can be used to determine how many deserializers this 233 provider is caching currently 234 (if it does caching: default implementation does) 235 Exact count depends on what kind of deserializers get cached; 236 default implementation caches only dynamically constructed deserializers, 237 but not eagerly constructed standard deserializers (which is different 238 from how serializer provider works).</TD> 239</TR> 240<TR BGCOLOR="white" CLASS="TableRowColor"> 241<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 242<CODE>protected <A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>></CODE></FONT></TD> 243<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#findDeserializerFromAnnotation(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.introspect.Annotated)">findDeserializerFromAnnotation</A></B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A> ctxt, 244 <A HREF="../../../../../com/fasterxml/jackson/databind/introspect/Annotated.html" title="class in com.fasterxml.jackson.databind.introspect">Annotated</A> ann)</CODE> 245 246<BR> 247 Helper method called to check if a class or method 248 has annotation that tells which class to use for deserialization.</TD> 249</TR> 250<TR BGCOLOR="white" CLASS="TableRowColor"> 251<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 252<CODE> <A HREF="../../../../../com/fasterxml/jackson/databind/KeyDeserializer.html" title="class in com.fasterxml.jackson.databind">KeyDeserializer</A></CODE></FONT></TD> 253<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#findKeyDeserializer(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.deser.DeserializerFactory, com.fasterxml.jackson.databind.JavaType)">findKeyDeserializer</A></B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A> ctxt, 254 <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerFactory.html" title="class in com.fasterxml.jackson.databind.deser">DeserializerFactory</A> factory, 255 <A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type)</CODE> 256 257<BR> 258 Method called to get hold of a deserializer to use for deserializing 259 keys for <A HREF="http://docs.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util"><CODE>Map</CODE></A>.</TD> 260</TR> 261<TR BGCOLOR="white" CLASS="TableRowColor"> 262<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 263<CODE> <A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>></CODE></FONT></TD> 264<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#findValueDeserializer(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.deser.DeserializerFactory, com.fasterxml.jackson.databind.JavaType)">findValueDeserializer</A></B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A> ctxt, 265 <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerFactory.html" title="class in com.fasterxml.jackson.databind.deser">DeserializerFactory</A> factory, 266 <A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> propertyType)</CODE> 267 268<BR> 269 Method called to get hold of a deserializer for a value of given type; 270 or if no such deserializer can be found, a default handler (which 271 may do a best-effort generic serialization or just simply 272 throw an exception when invoked).</TD> 273</TR> 274<TR BGCOLOR="white" CLASS="TableRowColor"> 275<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 276<CODE> void</CODE></FONT></TD> 277<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#flushCachedDeserializers()">flushCachedDeserializers</A></B>()</CODE> 278 279<BR> 280 Method that will drop all dynamically constructed deserializers (ones that 281 are counted as result value for <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#cachedDeserializersCount()"><CODE>cachedDeserializersCount()</CODE></A>).</TD> 282</TR> 283<TR BGCOLOR="white" CLASS="TableRowColor"> 284<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> 285<CODE> boolean</CODE></FONT></TD> 286<TD><CODE><B><A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#hasValueDeserializerFor(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.deser.DeserializerFactory, com.fasterxml.jackson.databind.JavaType)">hasValueDeserializerFor</A></B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A> ctxt, 287 <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerFactory.html" title="class in com.fasterxml.jackson.databind.deser">DeserializerFactory</A> factory, 288 <A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type)</CODE> 289 290<BR> 291 Method called to find out whether provider would be able to find 292 a deserializer for given type, using a root reference (i.e.</TD> 293</TR> 294</TABLE> 295 <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> 296<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 297<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> 298<TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH> 299</TR> 300<TR BGCOLOR="white" CLASS="TableRowColor"> 301<TD><CODE><A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD> 302</TR> 303</TABLE> 304 305<P> 306 307<!-- ============ FIELD DETAIL =========== --> 308 309<A NAME="field_detail"><!-- --></A> 310<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 311<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 312<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> 313<B>Field Detail</B></FONT></TH> 314</TR> 315</TABLE> 316 317<A NAME="_cachedDeserializers"><!-- --></A><H3> 318_cachedDeserializers</H3> 319<PRE> 320protected final <A HREF="http://docs.oracle.com/javase/6/docs/api/java/util/concurrent/ConcurrentHashMap.html?is-external=true" title="class or interface in java.util.concurrent">ConcurrentHashMap</A><<A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A>,<A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>>> <B>_cachedDeserializers</B></PRE> 321<DL> 322<DD>We will also cache some dynamically constructed deserializers; 323 specifically, ones that are expensive to construct. 324 This currently means bean and Enum deserializers; array, List and Map 325 deserializers will not be cached. 326<p> 327 Given that we don't expect much concurrency for additions 328 (should very quickly converge to zero after startup), let's 329 explicitly define a low concurrency setting. 330<P> 331<DL> 332</DL> 333</DL> 334<HR> 335 336<A NAME="_incompleteDeserializers"><!-- --></A><H3> 337_incompleteDeserializers</H3> 338<PRE> 339protected final <A HREF="http://docs.oracle.com/javase/6/docs/api/java/util/HashMap.html?is-external=true" title="class or interface in java.util">HashMap</A><<A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A>,<A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>>> <B>_incompleteDeserializers</B></PRE> 340<DL> 341<DD>During deserializer construction process we may need to keep track of partially 342 completed deserializers, to resolve cyclic dependencies. This is the 343 map used for storing deserializers before they are fully complete. 344<P> 345<DL> 346</DL> 347</DL> 348 349<!-- ========= CONSTRUCTOR DETAIL ======== --> 350 351<A NAME="constructor_detail"><!-- --></A> 352<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 353<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 354<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> 355<B>Constructor Detail</B></FONT></TH> 356</TR> 357</TABLE> 358 359<A NAME="DeserializerCache()"><!-- --></A><H3> 360DeserializerCache</H3> 361<PRE> 362public <B>DeserializerCache</B>()</PRE> 363<DL> 364</DL> 365 366<!-- ============ METHOD DETAIL ========== --> 367 368<A NAME="method_detail"><!-- --></A> 369<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> 370<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> 371<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> 372<B>Method Detail</B></FONT></TH> 373</TR> 374</TABLE> 375 376<A NAME="cachedDeserializersCount()"><!-- --></A><H3> 377cachedDeserializersCount</H3> 378<PRE> 379public int <B>cachedDeserializersCount</B>()</PRE> 380<DL> 381<DD>Method that can be used to determine how many deserializers this 382 provider is caching currently 383 (if it does caching: default implementation does) 384 Exact count depends on what kind of deserializers get cached; 385 default implementation caches only dynamically constructed deserializers, 386 but not eagerly constructed standard deserializers (which is different 387 from how serializer provider works). 388<p> 389 The main use case for this method is to allow conditional flushing of 390 deserializer cache, if certain number of entries is reached. 391<P> 392<DD><DL> 393</DL> 394</DD> 395</DL> 396<HR> 397 398<A NAME="flushCachedDeserializers()"><!-- --></A><H3> 399flushCachedDeserializers</H3> 400<PRE> 401public void <B>flushCachedDeserializers</B>()</PRE> 402<DL> 403<DD>Method that will drop all dynamically constructed deserializers (ones that 404 are counted as result value for <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#cachedDeserializersCount()"><CODE>cachedDeserializersCount()</CODE></A>). 405 This can be used to remove memory usage (in case some deserializers are 406 only used once or so), or to force re-construction of deserializers after 407 configuration changes for mapper than owns the provider. 408<P> 409<DD><DL> 410</DL> 411</DD> 412</DL> 413<HR> 414 415<A NAME="findValueDeserializer(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.deser.DeserializerFactory, com.fasterxml.jackson.databind.JavaType)"><!-- --></A><H3> 416findValueDeserializer</H3> 417<PRE> 418public <A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>> <B>findValueDeserializer</B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A> ctxt, 419 <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerFactory.html" title="class in com.fasterxml.jackson.databind.deser">DeserializerFactory</A> factory, 420 <A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> propertyType) 421 throws <A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></PRE> 422<DL> 423<DD>Method called to get hold of a deserializer for a value of given type; 424 or if no such deserializer can be found, a default handler (which 425 may do a best-effort generic serialization or just simply 426 throw an exception when invoked). 427<p> 428 Note: this method is only called for value types; not for keys. 429 Key deserializers can be accessed using <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerCache.html#findKeyDeserializer(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.deser.DeserializerFactory, com.fasterxml.jackson.databind.JavaType)"><CODE>findKeyDeserializer(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.deser.DeserializerFactory, com.fasterxml.jackson.databind.JavaType)</CODE></A>. 430<p> 431 Note also that deserializer returned is guaranteed to be resolved 432 (if it is of type <A HREF="../../../../../com/fasterxml/jackson/databind/deser/ResolvableDeserializer.html" title="interface in com.fasterxml.jackson.databind.deser"><CODE>ResolvableDeserializer</CODE></A>), but 433 not contextualized (wrt <A HREF="../../../../../com/fasterxml/jackson/databind/deser/ContextualDeserializer.html" title="interface in com.fasterxml.jackson.databind.deser"><CODE>ContextualDeserializer</CODE></A>): caller 434 has to handle latter if necessary. 435<P> 436<DD><DL> 437<DT><B>Parameters:</B><DD><CODE>ctxt</CODE> - Deserialization context<DD><CODE>propertyType</CODE> - Declared type of the value to deserializer (obtained using 438 'setter' method signature and/or type annotations 439<DT><B>Throws:</B> 440<DD><CODE><A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></CODE> - if there are fatal problems with 441 accessing suitable deserializer; including that of not 442 finding any serializer</DL> 443</DD> 444</DL> 445<HR> 446 447<A NAME="findKeyDeserializer(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.deser.DeserializerFactory, com.fasterxml.jackson.databind.JavaType)"><!-- --></A><H3> 448findKeyDeserializer</H3> 449<PRE> 450public <A HREF="../../../../../com/fasterxml/jackson/databind/KeyDeserializer.html" title="class in com.fasterxml.jackson.databind">KeyDeserializer</A> <B>findKeyDeserializer</B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A> ctxt, 451 <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerFactory.html" title="class in com.fasterxml.jackson.databind.deser">DeserializerFactory</A> factory, 452 <A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type) 453 throws <A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></PRE> 454<DL> 455<DD>Method called to get hold of a deserializer to use for deserializing 456 keys for <A HREF="http://docs.oracle.com/javase/6/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util"><CODE>Map</CODE></A>. 457<P> 458<DD><DL> 459 460<DT><B>Throws:</B> 461<DD><CODE><A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></CODE> - if there are fatal problems with 462 accessing suitable key deserializer; including that of not 463 finding any serializer</DL> 464</DD> 465</DL> 466<HR> 467 468<A NAME="hasValueDeserializerFor(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.deser.DeserializerFactory, com.fasterxml.jackson.databind.JavaType)"><!-- --></A><H3> 469hasValueDeserializerFor</H3> 470<PRE> 471public boolean <B>hasValueDeserializerFor</B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A> ctxt, 472 <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerFactory.html" title="class in com.fasterxml.jackson.databind.deser">DeserializerFactory</A> factory, 473 <A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type)</PRE> 474<DL> 475<DD>Method called to find out whether provider would be able to find 476 a deserializer for given type, using a root reference (i.e. not 477 through fields or membership in an array or collection) 478<P> 479<DD><DL> 480</DL> 481</DD> 482</DL> 483<HR> 484 485<A NAME="_findCachedDeserializer(com.fasterxml.jackson.databind.JavaType)"><!-- --></A><H3> 486_findCachedDeserializer</H3> 487<PRE> 488protected <A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>> <B>_findCachedDeserializer</B>(<A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type)</PRE> 489<DL> 490<DD><DL> 491</DL> 492</DD> 493</DL> 494<HR> 495 496<A NAME="_createAndCacheValueDeserializer(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.deser.DeserializerFactory, com.fasterxml.jackson.databind.JavaType)"><!-- --></A><H3> 497_createAndCacheValueDeserializer</H3> 498<PRE> 499protected <A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>> <B>_createAndCacheValueDeserializer</B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A> ctxt, 500 <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerFactory.html" title="class in com.fasterxml.jackson.databind.deser">DeserializerFactory</A> factory, 501 <A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type) 502 throws <A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></PRE> 503<DL> 504<DD>Method that will try to create a deserializer for given type, 505 and resolve and cache it if necessary 506<P> 507<DD><DL> 508<DT><B>Parameters:</B><DD><CODE>ctxt</CODE> - Currently active deserialization context<DD><CODE>type</CODE> - Type of property to deserialize 509<DT><B>Throws:</B> 510<DD><CODE><A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></CODE></DL> 511</DD> 512</DL> 513<HR> 514 515<A NAME="_createAndCache2(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.deser.DeserializerFactory, com.fasterxml.jackson.databind.JavaType)"><!-- --></A><H3> 516_createAndCache2</H3> 517<PRE> 518protected <A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>> <B>_createAndCache2</B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A> ctxt, 519 <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerFactory.html" title="class in com.fasterxml.jackson.databind.deser">DeserializerFactory</A> factory, 520 <A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type) 521 throws <A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></PRE> 522<DL> 523<DD>Method that handles actual construction (via factory) and caching (both 524 intermediate and eventual) 525<P> 526<DD><DL> 527 528<DT><B>Throws:</B> 529<DD><CODE><A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></CODE></DL> 530</DD> 531</DL> 532<HR> 533 534<A NAME="_createDeserializer(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.deser.DeserializerFactory, com.fasterxml.jackson.databind.JavaType)"><!-- --></A><H3> 535_createDeserializer</H3> 536<PRE> 537protected <A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>> <B>_createDeserializer</B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A> ctxt, 538 <A HREF="../../../../../com/fasterxml/jackson/databind/deser/DeserializerFactory.html" title="class in com.fasterxml.jackson.databind.deser">DeserializerFactory</A> factory, 539 <A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type) 540 throws <A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></PRE> 541<DL> 542<DD>Method that does the heavy lifting of checking for per-type annotations, 543 find out full type, and figure out which actual factory method 544 to call. 545<P> 546<DD><DL> 547 548<DT><B>Throws:</B> 549<DD><CODE><A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></CODE></DL> 550</DD> 551</DL> 552<HR> 553 554<A NAME="findDeserializerFromAnnotation(com.fasterxml.jackson.databind.DeserializationContext, com.fasterxml.jackson.databind.introspect.Annotated)"><!-- --></A><H3> 555findDeserializerFromAnnotation</H3> 556<PRE> 557protected <A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>> <B>findDeserializerFromAnnotation</B>(<A HREF="../../../../../com/fasterxml/jackson/databind/DeserializationContext.html" title="class in com.fasterxml.jackson.databind">DeserializationContext</A> ctxt, 558 <A HREF="../../../../../com/fasterxml/jackson/databind/introspect/Annotated.html" title="class in com.fasterxml.jackson.databind.introspect">Annotated</A> ann) 559 throws <A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></PRE> 560<DL> 561<DD>Helper method called to check if a class or method 562 has annotation that tells which class to use for deserialization. 563 Returns null if no such annotation found. 564<P> 565<DD><DL> 566 567<DT><B>Throws:</B> 568<DD><CODE><A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></CODE></DL> 569</DD> 570</DL> 571<HR> 572 573<A NAME="_handleUnknownValueDeserializer(com.fasterxml.jackson.databind.JavaType)"><!-- --></A><H3> 574_handleUnknownValueDeserializer</H3> 575<PRE> 576protected <A HREF="../../../../../com/fasterxml/jackson/databind/JsonDeserializer.html" title="class in com.fasterxml.jackson.databind">JsonDeserializer</A><<A HREF="http://docs.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A>> <B>_handleUnknownValueDeserializer</B>(<A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type) 577 throws <A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></PRE> 578<DL> 579<DD><DL> 580 581<DT><B>Throws:</B> 582<DD><CODE><A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></CODE></DL> 583</DD> 584</DL> 585<HR> 586 587<A NAME="_handleUnknownKeyDeserializer(com.fasterxml.jackson.databind.JavaType)"><!-- --></A><H3> 588_handleUnknownKeyDeserializer</H3> 589<PRE> 590protected <A HREF="../../../../../com/fasterxml/jackson/databind/KeyDeserializer.html" title="class in com.fasterxml.jackson.databind">KeyDeserializer</A> <B>_handleUnknownKeyDeserializer</B>(<A HREF="../../../../../com/fasterxml/jackson/databind/JavaType.html" title="class in com.fasterxml.jackson.databind">JavaType</A> type) 591 throws <A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></PRE> 592<DL> 593<DD><DL> 594 595<DT><B>Throws:</B> 596<DD><CODE><A HREF="../../../../../com/fasterxml/jackson/databind/JsonMappingException.html" title="class in com.fasterxml.jackson.databind">JsonMappingException</A></CODE></DL> 597</DD> 598</DL> 599<!-- ========= END OF CLASS DATA ========= --> 600<HR> 601 602 603<!-- ======= START OF BOTTOM NAVBAR ====== --> 604<A NAME="navbar_bottom"><!-- --></A> 605<A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> 606<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> 607<TR> 608<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> 609<A NAME="navbar_bottom_firstrow"><!-- --></A> 610<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> 611 <TR ALIGN="center" VALIGN="top"> 612 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> 613 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> 614 <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> 615 <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A 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