1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<!-- NewPage --> 3<html lang="en"> 4<head> 5<!-- Generated by javadoc (version 1.7.0_55) on Thu Jan 01 15:31:15 PST 2015 --> 6<meta http-equiv="Content-Type" content="text/html" charset="UTF-8"> 7<title>JsonCreator (Jackson-annotations 2.5.0 API)</title> 8<meta name="date" content="2015-01-01"> 9<link rel="stylesheet" type="text/css" href="../../../../stylesheet.css" title="Style"> 10</head> 11<body> 12<script type="text/javascript"><!-- 13 if (location.href.indexOf('is-external=true') == -1) { 14 parent.document.title="JsonCreator (Jackson-annotations 2.5.0 API)"; 15 } 16//--> 17</script> 18<noscript> 19<div>JavaScript is disabled on your browser.</div> 20</noscript> 21<!-- ========= START OF TOP NAVBAR ======= --> 22<div class="topNav"><a name="navbar_top"> 23<!-- --> 24</a><a href="#skip-navbar_top" title="Skip navigation links"></a><a name="navbar_top_firstrow"> 25<!-- --> 26</a> 27<ul class="navList" title="Navigation"> 28<li><a href="../../../../com/fasterxml/jackson/annotation/package-summary.html">Package</a></li> 29<li class="navBarCell1Rev">Class</li> 30<li><a href="class-use/JsonCreator.html">Use</a></li> 31<li><a href="package-tree.html">Tree</a></li> 32<li><a href="../../../../deprecated-list.html">Deprecated</a></li> 33<li><a href="../../../../index-all.html">Index</a></li> 34<li><a href="../../../../help-doc.html">Help</a></li> 35</ul> 36</div> 37<div class="subNav"> 38<ul class="navList"> 39<li><a href="../../../../com/fasterxml/jackson/annotation/JsonBackReference.html" title="annotation in com.fasterxml.jackson.annotation"><span class="strong">Prev Class</span></a></li> 40<li><a href="../../../../com/fasterxml/jackson/annotation/JsonCreator.Mode.html" title="enum in com.fasterxml.jackson.annotation"><span class="strong">Next Class</span></a></li> 41</ul> 42<ul class="navList"> 43<li><a 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OF CLASS DATA ======== --> 77<div class="header"> 78<div class="subTitle">com.fasterxml.jackson.annotation</div> 79<h2 title="Annotation Type JsonCreator" class="title">Annotation Type JsonCreator</h2> 80</div> 81<div class="contentContainer"> 82<div class="description"> 83<ul class="blockList"> 84<li class="blockList"> 85<hr> 86<br> 87<pre><a href="http://download.oracle.com/javase/6/docs/api/java/lang/annotation/Target.html?is-external=true" title="class or interface in java.lang.annotation">@Target</a>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/annotation/Target.html?is-external=true#value()" title="class or interface in java.lang.annotation">value</a>={<a href="http://download.oracle.com/javase/6/docs/api/java/lang/annotation/ElementType.html?is-external=true#ANNOTATION_TYPE" title="class or interface in java.lang.annotation">ANNOTATION_TYPE</a>,<a href="http://download.oracle.com/javase/6/docs/api/java/lang/annotation/ElementType.html?is-external=true#METHOD" title="class or interface in java.lang.annotation">METHOD</a>,<a href="http://download.oracle.com/javase/6/docs/api/java/lang/annotation/ElementType.html?is-external=true#CONSTRUCTOR" title="class or interface in java.lang.annotation">CONSTRUCTOR</a>}) 88<a href="http://download.oracle.com/javase/6/docs/api/java/lang/annotation/Retention.html?is-external=true" title="class or interface in java.lang.annotation">@Retention</a>(<a href="http://download.oracle.com/javase/6/docs/api/java/lang/annotation/Retention.html?is-external=true#value()" title="class or interface in java.lang.annotation">value</a>=<a href="http://download.oracle.com/javase/6/docs/api/java/lang/annotation/RetentionPolicy.html?is-external=true#RUNTIME" title="class or interface in java.lang.annotation">RUNTIME</a>) 89public @interface <span class="strong">JsonCreator</span></pre> 90<div class="block">Marker annotation that can be used to define constructors and factory 91 methods as one to use for instantiating new instances of the associated 92 class. 93<p> 94 NOTE: when annotating creator methods (constructors, factory methods), 95 method must either be: 96<ul> 97 <li>Single-argument constructor/factory method without <a href="../../../../com/fasterxml/jackson/annotation/JsonProperty.html" title="annotation in com.fasterxml.jackson.annotation"><code>JsonProperty</code></a> 98 annotation for the argument: if so, this is so-called "delegate creator", 99 in which case Jackson first binds JSON into type of the argument, and 100 then calls creator 101 </li> 102 <li>Constructor/factory method where <b>every argument</b> is annotated with 103 either <a href="../../../../com/fasterxml/jackson/annotation/JsonProperty.html" title="annotation in com.fasterxml.jackson.annotation"><code>JsonProperty</code></a> or <a href="../../../../com/fasterxml/jackson/annotation/JacksonInject.html" title="annotation in com.fasterxml.jackson.annotation"><code>JacksonInject</code></a>, to indicate name 104 of property to bind to 105 </li> 106 </ul> 107 Also note that all <a href="../../../../com/fasterxml/jackson/annotation/JsonProperty.html" title="annotation in com.fasterxml.jackson.annotation"><code>JsonProperty</code></a> annotations MUST use actual name 108 (NOT empty String for "default"): this because Java bytecode does not 109 retain names of method or constructor arguments. 110<br /> 111 NOTE: as of JDK 8, some of above changes, with introduction of names for 112 constructor and method parameters.</div> 113</li> 114</ul> 115</div> 116<div class="summary"> 117<ul class="blockList"> 118<li class="blockList"> 119<!-- =========== ANNOTATION TYPE OPTIONAL MEMBER SUMMARY =========== --> 120<ul class="blockList"> 121<li class="blockList"><a name="annotation_type_optional_element_summary"> 122<!-- --> 123</a> 124<h3>Optional Element Summary</h3> 125<table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Optional Element Summary table, listing optional elements, and an explanation"> 126<caption><span>Optional Elements</span><span class="tabEnd"> </span></caption> 127<tr> 128<th class="colFirst" scope="col">Modifier and Type</th> 129<th class="colLast" scope="col">Optional Element and Description</th> 130</tr> 131<tr class="altColor"> 132<td class="colFirst"><code><a href="../../../../com/fasterxml/jackson/annotation/JsonCreator.Mode.html" title="enum in com.fasterxml.jackson.annotation">JsonCreator.Mode</a></code></td> 133<td class="colLast"><code><strong><a href="../../../../com/fasterxml/jackson/annotation/JsonCreator.html#mode()">mode</a></strong></code> 134<div class="block">Property that is used to indicate how argument(s) is/are bound for creator, 135 in cases there may be multiple alternatives.</div> 136</td> 137</tr> 138</table> 139</li> 140</ul> 141</li> 142</ul> 143</div> 144<div class="details"> 145<ul class="blockList"> 146<li class="blockList"> 147<!-- ============ ANNOTATION TYPE MEMBER DETAIL =========== --> 148<ul class="blockList"> 149<li class="blockList"><a name="annotation_type_element_detail"> 150<!-- --> 151</a> 152<h3>Element Detail</h3> 153<a name="mode()"> 154<!-- --> 155</a> 156<ul class="blockListLast"> 157<li class="blockList"> 158<h4>mode</h4> 159<pre>public abstract <a href="../../../../com/fasterxml/jackson/annotation/JsonCreator.Mode.html" title="enum in com.fasterxml.jackson.annotation">JsonCreator.Mode</a> mode</pre> 160<div class="block">Property that is used to indicate how argument(s) is/are bound for creator, 161 in cases there may be multiple alternatives. Currently the one case is that 162 of a single-argument creator method, for which both so-called "delegating" and 163 "property-based" bindings are possible: since 164 delegating mode can not be used for multi-argument creators, the only choice 165 there is "property-based" mode. 166 Check <a href="../../../../com/fasterxml/jackson/annotation/JsonCreator.Mode.html" title="enum in com.fasterxml.jackson.annotation"><code>JsonCreator.Mode</code></a> for more complete explanation of possible choices. 167<p> 168 Default value of <a href="../../../../com/fasterxml/jackson/annotation/JsonCreator.Mode.html#DEFAULT"><code>JsonCreator.Mode.DEFAULT</code></a> means that caller is to use standard 169 heuristics for choosing mode to use.</div> 170<dl><dt><span class="strong">Since:</span></dt> 171 <dd>2.5</dd></dl> 172<dl> 173<dt>Default:</dt> 174<dd>com.fasterxml.jackson.annotation.JsonCreator.Mode.DEFAULT</dd> 175</dl> 176</li> 177</ul> 178</li> 179</ul> 180</li> 181</ul> 182</div> 183</div> 184<!-- ========= END OF CLASS DATA ========= --> 185<!-- ======= START OF BOTTOM NAVBAR ====== --> 186<div class="bottomNav"><a name="navbar_bottom"> 187<!-- --> 188</a><a href="#skip-navbar_bottom" title="Skip navigation links"></a><a name="navbar_bottom_firstrow"> 189<!-- --> 190</a> 191<ul class="navList" title="Navigation"> 192<li><a href="../../../../com/fasterxml/jackson/annotation/package-summary.html">Package</a></li> 193<li class="navBarCell1Rev">Class</li> 194<li><a href="class-use/JsonCreator.html">Use</a></li> 195<li><a href="package-tree.html">Tree</a></li> 196<li><a href="../../../../deprecated-list.html">Deprecated</a></li> 197<li><a href="../../../../index-all.html">Index</a></li> 198<li><a href="../../../../help-doc.html">Help</a></li> 199</ul> 200</div> 201<div class="subNav"> 202<ul class="navList"> 203<li><a href="../../../../com/fasterxml/jackson/annotation/JsonBackReference.html" title="annotation in com.fasterxml.jackson.annotation"><span class="strong">Prev Class</span></a></li> 204<li><a href="../../../../com/fasterxml/jackson/annotation/JsonCreator.Mode.html" title="enum in com.fasterxml.jackson.annotation"><span class="strong">Next Class</span></a></li> 205</ul> 206<ul class="navList"> 207<li><a href="../../../../index.html?com/fasterxml/jackson/annotation/JsonCreator.html" target="_top">Frames</a></li> 208<li><a href="JsonCreator.html" target="_top">No Frames</a></li> 209</ul> 210<ul class="navList" id="allclasses_navbar_bottom"> 211<li><a href="../../../../allclasses-noframe.html">All Classes</a></li> 212</ul> 213<div> 214<script type="text/javascript"><!-- 215 allClassesLink = document.getElementById("allclasses_navbar_bottom"); 216 if(window==top) { 217 allClassesLink.style.display = "block"; 218 } 219 else { 220 allClassesLink.style.display = "none"; 221 } 222 //--> 223</script> 224</div> 225<div> 226<ul class="subNavList"> 227<li>Summary: </li> 228<li>Required | </li> 229<li><a href="#annotation_type_optional_element_summary">Optional</a></li> 230</ul> 231<ul class="subNavList"> 232<li>Detail: </li> 233<li><a href="#annotation_type_element_detail">Element</a></li> 234</ul> 235</div> 236<a name="skip-navbar_bottom"> 237<!-- --> 238</a></div> 239<!-- ======== END OF BOTTOM NAVBAR ======= --> 240<p class="legalCopy"><small>Copyright © 2014-2015 <a href="http://fasterxml.com/">FasterXML</a>. 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