Package org.apache.xbean.asm

Examples of org.apache.xbean.asm.MethodVisitor.visitMethodInsn()

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     */
    private void createConstructor() {
        MethodVisitor mv = mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, beanClassName, "<init>", "()V");

        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }
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            String pkImplName = primKeyClass.getName().replace('.', '/');

            // new Pk();
            mv.visitTypeInsn(NEW, pkImplName);
            mv.visitInsn(DUP);
            mv.visitMethodInsn(INVOKESPECIAL, pkImplName, "<init>", "()V");
            mv.visitVarInsn(ASTORE, 1);
            mv.visitVarInsn(ALOAD, 1);

            // copy each field from the ejb to the pk class
            for (Field field : primKeyClass.getFields()) {
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        mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
       
        // return this.${cmrField.name}Cmr.get(this.${cmdField.name}); 
        // this takes the value stored in the CMR field (which might be a single value or
        // a Set or Collection), and hands it to the appropriate accessor.
        mv.visitMethodInsn(INVOKEVIRTUAL, cmrField.getAccessorInternalName(), "get", cmrField.getCmrStyle().getGetterDescriptor());
        // if the style is a single value, then we're going to need to cast this
        // to the target class before returning. 
        if (cmrField.getCmrStyle() == CmrStyle.SINGLE) {
            mv.visitTypeInsn(CHECKCAST, cmrField.getProxyType().getInternalName());
        }
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            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName() + "Cmr", cmrField.getAccessorDescriptor());
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEVIRTUAL, cmrField.getAccessorInternalName(), "set", cmrField.getCmrStyle().getSetterDescriptor());
            mv.visitInsn(RETURN);
        } else {
            // this is a single value.  We pass the existing value and the old value to
            // the accessor, then must cast the accessor return value to the target type
            // so we can store it in the real CMR field.
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            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName() + "Cmr", cmrField.getAccessorDescriptor());
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
            mv.visitVarInsn(ALOAD, 1);
            mv.visitMethodInsn(INVOKEVIRTUAL, cmrField.getAccessorInternalName(), "set", cmrField.getCmrStyle().getSetterDescriptor());
            mv.visitTypeInsn(CHECKCAST, cmrField.getType().getInternalName());
            mv.visitFieldInsn(PUTFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
            mv.visitInsn(RETURN);
        }
        mv.visitMaxs(0, 0);
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                i++;
            }
        }

        // EjbSelect.execute_xxxx(deploymentInfo, signature, [returnType.] args[]);
        mv.visitMethodInsn(INVOKESTATIC,
                Type.getInternalName(executeMethod.getDeclaringClass()),
                executeMethod.getName(),
                Type.getMethodDescriptor(executeMethod));

        // if this is a void type, we just return.  Otherwise, the return type
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    mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(Ljava/lang/reflect/InvocationHandler;)V", null, null);
    mv.visitCode();
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKESPECIAL, proxyName, "<init>", "(Ljava/lang/reflect/InvocationHandler;Ljava/lang/reflect/InvocationHandler;)V");
    mv.visitInsn(RETURN);
    mv.visitMaxs(0, 0);
    mv.visitEnd();

    // push double argument constructor
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    // push double argument constructor
    mv = cw.visitMethod(ACC_PUBLIC, "<init>", "(Ljava/lang/reflect/InvocationHandler;Ljava/lang/reflect/InvocationHandler;)V", null, null);
    mv.visitCode();
    mv.visitVarInsn(ALOAD, 0);
    mv.visitMethodInsn(INVOKESPECIAL, clsToOverride, "<init>", "()V");
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 1);
    mv.visitFieldInsn(PUTFIELD, proxyName, BUSSINESS_HANDLER_NAME, "Ljava/lang/reflect/InvocationHandler;");
    mv.visitVarInsn(ALOAD, 0);
    mv.visitVarInsn(ALOAD, 2);
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        length++;
      }
    }
   
    // invoke getMethod() with the method name and the array of types   
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/Class", "getDeclaredMethod", "(Ljava/lang/String;[Ljava/lang/Class;)Ljava/lang/reflect/Method;");
 
    // store the returned method for later
    mv.visitVarInsn(ASTORE, length);
   
    // the following code generates bytecode equivalent to:
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      if (parameterType.isPrimitive()) {
        String wrapperType = getWrapperType(parameterType);
        mv.visitVarInsn(getVarInsn(parameterType), index);
       
        mv.visitMethodInsn(INVOKESTATIC, wrapperType, "valueOf", "(" + getPrimitiveLetter(parameterType) + ")L" + wrapperType + ";");
        mv.visitInsn(AASTORE);
       
        if (Long.TYPE.equals(parameterType) || Double.TYPE.equals(parameterType)) {
          index += 2;
        } else {
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