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diff --git a/gson/docs/javadocs/com/google/gson/JsonDeserializer.html b/gson/docs/javadocs/com/google/gson/JsonDeserializer.html new file mode 100644 index 00000000..1f1e207a --- /dev/null +++ b/gson/docs/javadocs/com/google/gson/JsonDeserializer.html @@ -0,0 +1,278 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<!--NewPage--> +<HTML> +<HEAD> +<!-- Generated by javadoc (build 1.6.0_65) on Thu Nov 20 01:11:54 PST 2014 --> +<META http-equiv="Content-Type" content="text/html; charset=UTF-8"> +<TITLE> +JsonDeserializer (Gson 2.3.1 API) +</TITLE> + +<META NAME="date" CONTENT="2014-11-20"> + +<LINK REL ="stylesheet" TYPE="text/css" HREF="../../../stylesheet.css" TITLE="Style"> + +<SCRIPT type="text/javascript"> +function windowTitle() +{ + if (location.href.indexOf('is-external=true') == -1) { + parent.document.title="JsonDeserializer (Gson 2.3.1 API)"; + } +} +</SCRIPT> +<NOSCRIPT> +</NOSCRIPT> + +</HEAD> + +<BODY BGCOLOR="white" onload="windowTitle();"> +<HR> + + +<!-- ========= START OF TOP NAVBAR ======= --> +<A NAME="navbar_top"><!-- --></A> +<A HREF="#skip-navbar_top" title="Skip navigation links"></A> +<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> +<TR> +<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> +<A NAME="navbar_top_firstrow"><!-- --></A> +<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> + <TR ALIGN="center" VALIGN="top"> + <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> + <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> + <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> + <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/JsonDeserializer.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> + <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> + <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> + <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> + <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> + </TR> +</TABLE> +</TD> +<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> +</EM> +</TD> +</TR> + +<TR> +<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> + <A HREF="../../../com/google/gson/JsonDeserializationContext.html" title="interface in com.google.gson"><B>PREV CLASS</B></A> + <A HREF="../../../com/google/gson/JsonElement.html" title="class in com.google.gson"><B>NEXT CLASS</B></A></FONT></TD> +<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> + <A HREF="../../../index.html?com/google/gson/JsonDeserializer.html" target="_top"><B>FRAMES</B></A> + <A HREF="JsonDeserializer.html" target="_top"><B>NO FRAMES</B></A> + <SCRIPT type="text/javascript"> + <!-- + if(window==top) { + document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>'); + } + //--> +</SCRIPT> +<NOSCRIPT> + <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A> +</NOSCRIPT> + + +</FONT></TD> +</TR> +<TR> +<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> + SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD> +<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> +DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD> +</TR> +</TABLE> +<A NAME="skip-navbar_top"></A> +<!-- ========= END OF TOP NAVBAR ========= --> + +<HR> +<!-- ======== START OF CLASS DATA ======== --> +<H2> +<FONT SIZE="-1"> +com.google.gson</FONT> +<BR> +Interface JsonDeserializer<T></H2> +<DL> +<DT><DT><B>Type Parameters:</B><DD><CODE>T</CODE> - type for which the deserializer is being registered. It is possible that a + deserializer may be asked to deserialize a specific generic type of the T.</DL> +<HR> +<DL> +<DT><PRE>public interface <B>JsonDeserializer<T></B></DL> +</PRE> + +<P> +<p>Interface representing a custom deserializer for Json. You should write a custom + deserializer, if you are not happy with the default deserialization done by Gson. You will + also need to register this deserializer through + <A HREF="../../../com/google/gson/GsonBuilder.html#registerTypeAdapter(java.lang.reflect.Type, java.lang.Object)"><CODE>GsonBuilder.registerTypeAdapter(Type, Object)</CODE></A>.</p> + + <p>Let us look at example where defining a deserializer will be useful. The <code>Id</code> class + defined below has two fields: <code>clazz</code> and <code>value</code>.</p> + + <pre> + public class Id<T> { + private final Class<T> clazz; + private final long value; + public Id(Class<T> clazz, long value) { + this.clazz = clazz; + this.value = value; + } + public long getValue() { + return value; + } + } + </pre> + + <p>The default deserialization of <code>Id(com.foo.MyObject.class, 20L)</code> will require the + Json string to be <code>{"clazz":com.foo.MyObject,"value":20}</code>. Suppose, you already know + the type of the field that the <code>Id</code> will be deserialized into, and hence just want to + deserialize it from a Json string <code>20</code>. You can achieve that by writing a custom + deserializer:</p> + + <pre> + class IdDeserializer implements JsonDeserializer<Id>() { + public Id deserialize(JsonElement json, Type typeOfT, JsonDeserializationContext context) + throws JsonParseException { + return new Id((Class)typeOfT, id.getValue()); + } + </pre> + + <p>You will also need to register <code>IdDeserializer</code> with Gson as follows:</p> + + <pre> + Gson gson = new GsonBuilder().registerTypeAdapter(Id.class, new IdDeserializer()).create(); + </pre> + + <p>New applications should prefer <A HREF="../../../com/google/gson/TypeAdapter.html" title="class in com.google.gson"><CODE>TypeAdapter</CODE></A>, whose streaming API + is more efficient than this interface's tree API. +<P> + +<P> +<DL> +<DT><B>Author:</B></DT> + <DD>Inderjeet Singh, Joel Leitch</DD> +</DL> +<HR> + +<P> + +<!-- ========== METHOD SUMMARY =========== --> + +<A NAME="method_summary"><!-- --></A> +<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> +<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> +<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> +<B>Method Summary</B></FONT></TH> +</TR> +<TR BGCOLOR="white" CLASS="TableRowColor"> +<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> +<CODE> <A HREF="../../../com/google/gson/JsonDeserializer.html" title="type parameter in JsonDeserializer">T</A></CODE></FONT></TD> +<TD><CODE><B><A HREF="../../../com/google/gson/JsonDeserializer.html#deserialize(com.google.gson.JsonElement, java.lang.reflect.Type, com.google.gson.JsonDeserializationContext)">deserialize</A></B>(<A HREF="../../../com/google/gson/JsonElement.html" title="class in com.google.gson">JsonElement</A> json, + <A HREF="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/reflect/Type.html?is-external=true" title="class or interface in java.lang.reflect">Type</A> typeOfT, + <A HREF="../../../com/google/gson/JsonDeserializationContext.html" title="interface in com.google.gson">JsonDeserializationContext</A> context)</CODE> + +<BR> + Gson invokes this call-back method during deserialization when it encounters a field of the + specified type.</TD> +</TR> +</TABLE> + +<P> + +<!-- ============ METHOD DETAIL ========== --> + +<A NAME="method_detail"><!-- --></A> +<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> +<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> +<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> +<B>Method Detail</B></FONT></TH> +</TR> +</TABLE> + +<A NAME="deserialize(com.google.gson.JsonElement, java.lang.reflect.Type, com.google.gson.JsonDeserializationContext)"><!-- --></A><H3> +deserialize</H3> +<PRE> +<A HREF="../../../com/google/gson/JsonDeserializer.html" title="type parameter in JsonDeserializer">T</A> <B>deserialize</B>(<A HREF="../../../com/google/gson/JsonElement.html" title="class in com.google.gson">JsonElement</A> json, + <A HREF="http://docs.oracle.com/javase/1.5.0/docs/api/java/lang/reflect/Type.html?is-external=true" title="class or interface in java.lang.reflect">Type</A> typeOfT, + <A HREF="../../../com/google/gson/JsonDeserializationContext.html" title="interface in com.google.gson">JsonDeserializationContext</A> context) + throws <A HREF="../../../com/google/gson/JsonParseException.html" title="class in com.google.gson">JsonParseException</A></PRE> +<DL> +<DD>Gson invokes this call-back method during deserialization when it encounters a field of the + specified type. + <p>In the implementation of this call-back method, you should consider invoking + <A HREF="../../../com/google/gson/JsonDeserializationContext.html#deserialize(com.google.gson.JsonElement, java.lang.reflect.Type)"><CODE>JsonDeserializationContext.deserialize(JsonElement, Type)</CODE></A> method to create objects + for any non-trivial field of the returned object. However, you should never invoke it on the + the same type passing <code>json</code> since that will cause an infinite loop (Gson will call your + call-back method again). +<P> +<DD><DL> +<DT><B>Parameters:</B><DD><CODE>json</CODE> - The Json data being deserialized<DD><CODE>typeOfT</CODE> - The type of the Object to deserialize to +<DT><B>Returns:</B><DD>a deserialized object of the specified type typeOfT which is a subclass of <code>T</code> +<DT><B>Throws:</B> +<DD><CODE><A HREF="../../../com/google/gson/JsonParseException.html" title="class in com.google.gson">JsonParseException</A></CODE> - if json is not in the expected format of <code>typeofT</code></DL> +</DD> +</DL> +<!-- ========= END OF CLASS DATA ========= --> +<HR> + + +<!-- ======= START OF BOTTOM NAVBAR ====== --> +<A NAME="navbar_bottom"><!-- --></A> +<A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> +<TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> +<TR> +<TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> +<A NAME="navbar_bottom_firstrow"><!-- --></A> +<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> + <TR ALIGN="center" VALIGN="top"> + <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> + <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> + <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> + <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/JsonDeserializer.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> + <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> + <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> + <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> + <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> + </TR> +</TABLE> +</TD> +<TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> +</EM> +</TD> +</TR> + +<TR> +<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> + <A HREF="../../../com/google/gson/JsonDeserializationContext.html" title="interface in com.google.gson"><B>PREV CLASS</B></A> + <A HREF="../../../com/google/gson/JsonElement.html" title="class in com.google.gson"><B>NEXT CLASS</B></A></FONT></TD> +<TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> + <A HREF="../../../index.html?com/google/gson/JsonDeserializer.html" target="_top"><B>FRAMES</B></A> + <A HREF="JsonDeserializer.html" target="_top"><B>NO FRAMES</B></A> + <SCRIPT type="text/javascript"> + <!-- + if(window==top) { + document.writeln('<A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A>'); + } + //--> +</SCRIPT> +<NOSCRIPT> + <A HREF="../../../allclasses-noframe.html"><B>All Classes</B></A> +</NOSCRIPT> + + +</FONT></TD> +</TR> +<TR> +<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> + SUMMARY: NESTED | FIELD | CONSTR | <A HREF="#method_summary">METHOD</A></FONT></TD> +<TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> +DETAIL: FIELD | CONSTR | <A HREF="#method_detail">METHOD</A></FONT></TD> +</TR> +</TABLE> +<A NAME="skip-navbar_bottom"></A> +<!-- ======== END OF BOTTOM NAVBAR ======= --> + +<HR> +Copyright © 2008–2014 <a href="http://www.google.com">Google, Inc.</a>. 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