com.newrelic.agent.util.asm

Class BytecodeGenProxyBuilder<T>

java.lang.Object

com.newrelic.agent.util.asm.BytecodeGenProxyBuilder<T>

Type Parameters:

T -

public class BytecodeGenProxyBuilder<T>
extends java.lang.Object

The BytecodeGeneratorProxyBuilder is used to create proxy classes that generate bytecode. It builds a proxy that implements a given interface. When methods on the proxy instance are invoked, the proxy will generate the bytecode instructions to invoke the corresponding interface method. The proxy will also load the arguments which have been passed in onto the stack if loadArguments is set to true when the builder is constructed. There is built in support for loading primitive arguments, Strings, enums, and arrays of those types. Additionally, getVariables() can be used to load local variables, 'this', and other junk.

See Also:

Variables

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	BytecodeGenProxyBuilder.LoaderMarker A marker interface.
class	BytecodeGenProxyBuilder.VariableLoaderImpl

Method Summary

Modifier and Type	Method and Description
BytecodeGenProxyBuilder<T>	addLoader(org.objectweb.asm.Type t, VariableLoader loader) Adds a custom variable loader for the given type to extend the built in argument type support.
T	build() Returns a proxy implementation that generates bytecode instructions when its methods are invoked.
Variables	getVariables()
static <T> BytecodeGenProxyBuilder<T>	newBuilder(java.lang.Class<T> target, org.objectweb.asm.commons.GeneratorAdapter methodAdapter, boolean loadArguments) Returns a new api builder.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

newBuilder

public static <T> BytecodeGenProxyBuilder<T> newBuilder(java.lang.Class<T> target,
                                                        org.objectweb.asm.commons.GeneratorAdapter methodAdapter,
                                                        boolean loadArguments)

Returns a new api builder. If loadArguments is false, the arguments passed when invoking a generated proxy class' methods will be ignored.

getVariables

public Variables getVariables()

addLoader

public BytecodeGenProxyBuilder<T> addLoader(org.objectweb.asm.Type t,
                                            VariableLoader loader)

Adds a custom variable loader for the given type to extend the built in argument type support.

build

public T build()

Returns a proxy implementation that generates bytecode instructions when its methods are invoked.