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| com.google.dexmaker</FONT> |
| <BR> |
| Class DexMaker</H2> |
| <PRE> |
| <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A> |
| <IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>com.google.dexmaker.DexMaker</B> |
| </PRE> |
| <HR> |
| <DL> |
| <DT><PRE>public final class <B>DexMaker</B><DT>extends <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></DL> |
| </PRE> |
| |
| <P> |
| Generates a </i><strong>D</strong>alvik <strong>EX</strong>ecutable (dex) |
| file for execution on Android. Dex files define classes and interfaces, |
| including their member methods and fields, executable code, and debugging |
| information. They also define annotations, though this API currently has no |
| facility to create a dex file that contains annotations. |
| |
| <p>This library is intended to satisfy two use cases: |
| <ul> |
| <li><strong>For runtime code generation.</strong> By embedding this library |
| in your Android application, you can dynamically generate and load |
| executable code. This approach takes advantage of the fact that the |
| host environment and target environment are both Android. |
| <li><strong>For compile time code generation.</strong> You may use this |
| library as a part of a compiler that targets Android. In this scenario |
| the generated dex file must be installed on an Android device before it |
| can be executed. |
| </ul> |
| |
| <h3>Example: Fibonacci</h3> |
| To illustrate how this API is used, we'll use DexMaker to generate a class |
| equivalent to the following Java source: <pre> <code>package com.publicobject.fib; |
| |
| public class Fibonacci { |
| public static int fib(int i) { |
| if (i < 2) { |
| return i; |
| } |
| return fib(i - 1) + fib(i - 2); |
| } |
| }</code></pre> |
| |
| <p>We start by creating a <A HREF="../../../com/google/dexmaker/TypeId.html" title="class in com.google.dexmaker"><CODE>TypeId</CODE></A> to identify the generated <code>Fibonacci</code> class. DexMaker identifies types by their internal names like |
| <code>Ljava/lang/Object;</code> rather than their Java identifiers like <code>java.lang.Object</code>. <pre> <code>TypeId<?> fibonacci = TypeId.get("Lcom/google/dexmaker/examples/Fibonacci;"); |
| </code></pre> |
| |
| <p>Next we declare the class. It allows us to specify the type's source file |
| for stack traces, its modifiers, its superclass, and the interfaces it |
| implements. In this case, <code>Fibonacci</code> is a public class that extends |
| from <code>Object</code>: <pre> <code>String fileName = "Fibonacci.generated"; |
| DexMaker dexMaker = new DexMaker(); |
| dexMaker.declare(fibonacci, fileName, Modifier.PUBLIC, TypeId.OBJECT); |
| </code></pre> |
| It is illegal to declare members of a class without also declaring the class |
| itself. |
| |
| <p>To make it easier to go from our Java method to dex instructions, we'll |
| manually translate it to pseudocode fit for an assembler. We need to replace |
| control flow like <code>if()</code> blocks and <code>for()</code> loops with labels and |
| branches. We'll also avoid performing multiple operations in one statement, |
| using local variables to hold intermediate values as necessary: |
| <pre> <code>int constant1 = 1; |
| int constant2 = 2; |
| if (i < constant2) goto baseCase; |
| int a = i - constant1; |
| int b = i - constant2; |
| int c = fib(a); |
| int d = fib(b); |
| int result = c + d; |
| return result; |
| baseCase: |
| return i; |
| </code></pre> |
| |
| <p>We look up the <code>MethodId</code> for the method on the declaring type. This |
| takes the method's return type (possibly <A HREF="../../../com/google/dexmaker/TypeId.html#VOID"><CODE>TypeId.VOID</CODE></A>), its name and |
| its parameters types. Next we declare the method, specifying its modifiers by |
| bitwise ORing constants from <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true" title="class or interface in java.lang.reflect"><CODE>Modifier</CODE></A>. The declare |
| call returns a <A HREF="../../../com/google/dexmaker/Code.html" title="class in com.google.dexmaker"><CODE>Code</CODE></A> object, which we'll use to define the method's |
| instructions. <pre> <code>MethodId<?, Integer> fib = fibonacci.getMethod(TypeId.INT, "fib", TypeId.INT); |
| Code code = dexMaker.declare(fib, Modifier.PUBLIC | Modifier.STATIC); |
| </code></pre> |
| |
| <p>One limitation of <code>DexMaker</code>'s API is that it requires all local |
| variables to be created before any instructions are emitted. Use <A HREF="../../../com/google/dexmaker/Code.html#newLocal(com.google.dexmaker.TypeId)"><CODE>newLocal()</CODE></A> to create a new local variable. The method's |
| parameters are exposed as locals using <A HREF="../../../com/google/dexmaker/Code.html#getParameter(int, com.google.dexmaker.TypeId)"><CODE>getParameter()</CODE></A>. For non-static methods the <code>this</code> pointer is exposed |
| using <A HREF="../../../com/google/dexmaker/Code.html#getThis(com.google.dexmaker.TypeId)"><CODE>getThis()</CODE></A>. Here we declare all of the local |
| variables that we'll need for our <code>fib()</code> method: <pre> <code>Local<Integer> i = code.getParameter(0, TypeId.INT); |
| Local<Integer> constant1 = code.newLocal(TypeId.INT); |
| Local<Integer> constant2 = code.newLocal(TypeId.INT); |
| Local<Integer> a = code.newLocal(TypeId.INT); |
| Local<Integer> b = code.newLocal(TypeId.INT); |
| Local<Integer> c = code.newLocal(TypeId.INT); |
| Local<Integer> d = code.newLocal(TypeId.INT); |
| Local<Integer> result = code.newLocal(TypeId.INT); |
| </code></pre> |
| |
| <p>Notice that <A HREF="../../../com/google/dexmaker/Local.html" title="class in com.google.dexmaker"><CODE>Local</CODE></A> has a type parameter of <code>Integer</code>. This is |
| useful for generating code that works with existing types like <code>String</code> |
| and <code>Integer</code>, but it can be a hindrance when generating code that |
| involves new types. For this reason you may prefer to use raw types only and |
| add <code>@SuppressWarnings("unsafe")</code> on your calling code. This will yield |
| the same result but you won't get IDE support if you make a type error. |
| |
| <p>We're ready to start defining our method's instructions. The <A HREF="../../../com/google/dexmaker/Code.html" title="class in com.google.dexmaker"><CODE>Code</CODE></A> |
| class catalogs the available instructions and their use. <pre> <code>code.loadConstant(constant1, 1); |
| code.loadConstant(constant2, 2); |
| Label baseCase = new Label(); |
| code.compare(Comparison.LT, baseCase, i, constant2); |
| code.op(BinaryOp.SUBTRACT, a, i, constant1); |
| code.op(BinaryOp.SUBTRACT, b, i, constant2); |
| code.invokeStatic(fib, c, a); |
| code.invokeStatic(fib, d, b); |
| code.op(BinaryOp.ADD, result, c, d); |
| code.returnValue(result); |
| code.mark(baseCase); |
| code.returnValue(i); |
| </code></pre> |
| |
| <p>We're done defining the dex file. We just need to write it to the |
| filesystem or load it into the current process. For this example we'll load |
| the generated code into the current process. This only works when the current |
| process is running on Android. We use <A HREF="../../../com/google/dexmaker/DexMaker.html#generateAndLoad(java.lang.ClassLoader, java.io.File)"><CODE>generateAndLoad()</CODE></A> which takes the class loader that will be used as our |
| generated code's parent class loader. It also requires a directory where |
| temporary files can be written. <pre> <code>ClassLoader loader = dexMaker.generateAndLoad( |
| FibonacciMaker.class.getClassLoader(), getDataDirectory()); |
| </code></pre> |
| Finally we'll use reflection to lookup our generated class on its class |
| loader and invoke its <code>fib()</code> method: <pre> <code>Class<?> fibonacciClass = loader.loadClass("com.google.dexmaker.examples.Fibonacci"); |
| Method fibMethod = fibonacciClass.getMethod("fib", int.class); |
| System.out.println(fibMethod.invoke(null, 8)); |
| </code></pre> |
| <P> |
| |
| <P> |
| <HR> |
| |
| <P> |
| |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| |
| <A NAME="constructor_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>Constructor Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><B><A HREF="../../../com/google/dexmaker/DexMaker.html#DexMaker()">DexMaker</A></B>()</CODE> |
| |
| <BR> |
| Creates a new <code>DexMaker</code> instance, which can be used to create a |
| single dex file.</TD> |
| </TR> |
| </TABLE> |
| |
| <!-- ========== 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> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../com/google/dexmaker/DexMaker.html#declare(com.google.dexmaker.FieldId, int, java.lang.Object)">declare</A></B>(<A HREF="../../../com/google/dexmaker/FieldId.html" title="class in com.google.dexmaker">FieldId</A><?,?> fieldId, |
| int flags, |
| <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A> staticValue)</CODE> |
| |
| <BR> |
| Declares a field.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> <A HREF="../../../com/google/dexmaker/Code.html" title="class in com.google.dexmaker">Code</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../com/google/dexmaker/DexMaker.html#declare(com.google.dexmaker.MethodId, int)">declare</A></B>(<A HREF="../../../com/google/dexmaker/MethodId.html" title="class in com.google.dexmaker">MethodId</A><?,?> method, |
| int flags)</CODE> |
| |
| <BR> |
| Declares a method or constructor.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> void</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../com/google/dexmaker/DexMaker.html#declare(com.google.dexmaker.TypeId, java.lang.String, int, com.google.dexmaker.TypeId, com.google.dexmaker.TypeId...)">declare</A></B>(<A HREF="../../../com/google/dexmaker/TypeId.html" title="class in com.google.dexmaker">TypeId</A><?> type, |
| <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> sourceFile, |
| int flags, |
| <A HREF="../../../com/google/dexmaker/TypeId.html" title="class in com.google.dexmaker">TypeId</A><?> supertype, |
| <A HREF="../../../com/google/dexmaker/TypeId.html" title="class in com.google.dexmaker">TypeId</A><?>... interfaces)</CODE> |
| |
| <BR> |
| Declares <code>type</code>.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> byte[]</CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../com/google/dexmaker/DexMaker.html#generate()">generate</A></B>()</CODE> |
| |
| <BR> |
| Generates a dex file and returns its bytes.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
| <CODE> <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/ClassLoader.html?is-external=true" title="class or interface in java.lang">ClassLoader</A></CODE></FONT></TD> |
| <TD><CODE><B><A HREF="../../../com/google/dexmaker/DexMaker.html#generateAndLoad(java.lang.ClassLoader, java.io.File)">generateAndLoad</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/ClassLoader.html?is-external=true" title="class or interface in java.lang">ClassLoader</A> parent, |
| <A HREF="http://download.oracle.com/javase/6/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</A> dexDir)</CODE> |
| |
| <BR> |
| Generates a dex file and loads its types into the current process.</TD> |
| </TR> |
| </TABLE> |
| <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
| <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
| <TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD><CODE><A HREF="http://download.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://download.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://download.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://download.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://download.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://download.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://download.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://download.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://download.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://download.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://download.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> |
| </TR> |
| </TABLE> |
| |
| <P> |
| |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| |
| <A NAME="constructor_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>Constructor Detail</B></FONT></TH> |
| </TR> |
| </TABLE> |
| |
| <A NAME="DexMaker()"><!-- --></A><H3> |
| DexMaker</H3> |
| <PRE> |
| public <B>DexMaker</B>()</PRE> |
| <DL> |
| <DD>Creates a new <code>DexMaker</code> instance, which can be used to create a |
| single dex file. |
| <P> |
| </DL> |
| |
| <!-- ============ 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="declare(com.google.dexmaker.TypeId, java.lang.String, int, com.google.dexmaker.TypeId, com.google.dexmaker.TypeId...)"><!-- --></A><H3> |
| declare</H3> |
| <PRE> |
| public void <B>declare</B>(<A HREF="../../../com/google/dexmaker/TypeId.html" title="class in com.google.dexmaker">TypeId</A><?> type, |
| <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> sourceFile, |
| int flags, |
| <A HREF="../../../com/google/dexmaker/TypeId.html" title="class in com.google.dexmaker">TypeId</A><?> supertype, |
| <A HREF="../../../com/google/dexmaker/TypeId.html" title="class in com.google.dexmaker">TypeId</A><?>... interfaces)</PRE> |
| <DL> |
| <DD>Declares <code>type</code>. |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>flags</CODE> - a bitwise combination of <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#PUBLIC" title="class or interface in java.lang.reflect"><CODE>Modifier.PUBLIC</CODE></A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#FINAL" title="class or interface in java.lang.reflect"><CODE>Modifier.FINAL</CODE></A> and <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#ABSTRACT" title="class or interface in java.lang.reflect"><CODE>Modifier.ABSTRACT</CODE></A>.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="declare(com.google.dexmaker.MethodId, int)"><!-- --></A><H3> |
| declare</H3> |
| <PRE> |
| public <A HREF="../../../com/google/dexmaker/Code.html" title="class in com.google.dexmaker">Code</A> <B>declare</B>(<A HREF="../../../com/google/dexmaker/MethodId.html" title="class in com.google.dexmaker">MethodId</A><?,?> method, |
| int flags)</PRE> |
| <DL> |
| <DD>Declares a method or constructor. |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>flags</CODE> - a bitwise combination of <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#PUBLIC" title="class or interface in java.lang.reflect"><CODE>Modifier.PUBLIC</CODE></A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#PRIVATE" title="class or interface in java.lang.reflect"><CODE>Modifier.PRIVATE</CODE></A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#PROTECTED" title="class or interface in java.lang.reflect"><CODE>Modifier.PROTECTED</CODE></A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#STATIC" title="class or interface in java.lang.reflect"><CODE>Modifier.STATIC</CODE></A>, |
| <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#FINAL" title="class or interface in java.lang.reflect"><CODE>Modifier.FINAL</CODE></A> and <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#SYNCHRONIZED" title="class or interface in java.lang.reflect"><CODE>Modifier.SYNCHRONIZED</CODE></A>. |
| <p><strong>Warning:</strong> the <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#SYNCHRONIZED" title="class or interface in java.lang.reflect"><CODE>Modifier.SYNCHRONIZED</CODE></A> flag |
| is insufficient to generate a synchronized method. You must also use |
| <A HREF="../../../com/google/dexmaker/Code.html#monitorEnter(com.google.dexmaker.Local)"><CODE>Code.monitorEnter(com.google.dexmaker.Local<?>)</CODE></A> and <A HREF="../../../com/google/dexmaker/Code.html#monitorExit(com.google.dexmaker.Local)"><CODE>Code.monitorExit(com.google.dexmaker.Local<?>)</CODE></A> to acquire |
| a monitor.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="declare(com.google.dexmaker.FieldId, int, java.lang.Object)"><!-- --></A><H3> |
| declare</H3> |
| <PRE> |
| public void <B>declare</B>(<A HREF="../../../com/google/dexmaker/FieldId.html" title="class in com.google.dexmaker">FieldId</A><?,?> fieldId, |
| int flags, |
| <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A> staticValue)</PRE> |
| <DL> |
| <DD>Declares a field. |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>flags</CODE> - a bitwise combination of <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#PUBLIC" title="class or interface in java.lang.reflect"><CODE>Modifier.PUBLIC</CODE></A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#PRIVATE" title="class or interface in java.lang.reflect"><CODE>Modifier.PRIVATE</CODE></A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#PROTECTED" title="class or interface in java.lang.reflect"><CODE>Modifier.PROTECTED</CODE></A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#STATIC" title="class or interface in java.lang.reflect"><CODE>Modifier.STATIC</CODE></A>, |
| <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#FINAL" title="class or interface in java.lang.reflect"><CODE>Modifier.FINAL</CODE></A>, <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#VOLATILE" title="class or interface in java.lang.reflect"><CODE>Modifier.VOLATILE</CODE></A>, and <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/reflect/Modifier.html?is-external=true#TRANSIENT" title="class or interface in java.lang.reflect"><CODE>Modifier.TRANSIENT</CODE></A>.<DD><CODE>staticValue</CODE> - a constant representing the initial value for the |
| static field, possibly null. This must be null if this field is |
| non-static.</DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="generate()"><!-- --></A><H3> |
| generate</H3> |
| <PRE> |
| public byte[] <B>generate</B>()</PRE> |
| <DL> |
| <DD>Generates a dex file and returns its bytes. |
| <P> |
| <DD><DL> |
| </DL> |
| </DD> |
| </DL> |
| <HR> |
| |
| <A NAME="generateAndLoad(java.lang.ClassLoader, java.io.File)"><!-- --></A><H3> |
| generateAndLoad</H3> |
| <PRE> |
| public <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/ClassLoader.html?is-external=true" title="class or interface in java.lang">ClassLoader</A> <B>generateAndLoad</B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/ClassLoader.html?is-external=true" title="class or interface in java.lang">ClassLoader</A> parent, |
| <A HREF="http://download.oracle.com/javase/6/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</A> dexDir) |
| throws <A HREF="http://download.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE> |
| <DL> |
| <DD>Generates a dex file and loads its types into the current process. |
| |
| <p>All parameters are optional; you may pass <code>null</code> and suitable |
| defaults will be used. |
| |
| <p>If you opt to provide your own <code>dexDir</code>, take care to ensure |
| that it is not world-writable, otherwise a malicious app may be able |
| to inject code into your process. A suitable parameter is: |
| <code>getApplicationContext().getDir("dx", Context.MODE_PRIVATE); </code> |
| <P> |
| <DD><DL> |
| <DT><B>Parameters:</B><DD><CODE>parent</CODE> - the parent ClassLoader to be used when loading |
| our generated types<DD><CODE>dexDir</CODE> - the destination directory where generated and |
| optimized dex files will be written. |
| <DT><B>Throws:</B> |
| <DD><CODE><A HREF="http://download.oracle.com/javase/6/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL> |
| </DD> |
| </DL> |
| <!-- ========= END OF CLASS DATA ========= --> |
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