Examples of jodd.asm5.MethodVisitor.visitFieldInsn()

jodd.asm5.MethodVisitor.visitFieldInsn()
Visits a field instruction. A field instruction is an instruction that loads or stores the value of a field of an object. @param opcode the opcode of the type instruction to be visited. This opcode is either GETSTATIC, PUTSTATIC, GETFIELD or PUTFIELD. @param owner the internal name of the field's owner class (see {@link Type#getInternalName() getInternalName}). @param name the field's name. @param desc the field's descriptor (see {@link Type Type}).

        final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "OpenEJB_deleted", "()V", null, null);
        mv.visitCode();


        /* if (deleted) return; */
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, implClassName, DELETED, "Z");
        final Label notDeleted = new Label();
        mv.visitJumpInsn(IFEQ, notDeleted);
        mv.visitInsn(RETURN);
        mv.visitLabel(notDeleted);

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        mv.visitLabel(notDeleted);


        // deleted = true;
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ICONST_1);
        mv.visitFieldInsn(PUTFIELD, implClassName, DELETED, "Z");


        for (final CmrField cmrField : cmrFields) {
            // ${cmrField.accessor}.delete(${cmrField.name});
            createOpenEJB_deleted(mv, cmrField);
        }

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        final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "OpenEJB_addCmr", "(Ljava/lang/String;Ljava/lang/Object;)Ljava/lang/Object;", null, null);
        mv.visitCode();


        // if (deleted) return null;
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, implClassName, DELETED, "Z");
        final Label notDeleted = new Label();
        mv.visitJumpInsn(IFEQ, notDeleted);
        mv.visitInsn(ACONST_NULL);
        mv.visitInsn(ARETURN);
        mv.visitLabel(notDeleted);

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        final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "OpenEJB_removeCmr", "(Ljava/lang/String;Ljava/lang/Object;)V", null, null);
        mv.visitCode();


        // if (deleted) return;
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, implClassName, DELETED, "Z");
        final Label notDeleted = new Label();
        mv.visitJumpInsn(IFEQ, notDeleted);
        mv.visitInsn(RETURN);
        mv.visitLabel(notDeleted);

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    private void createGetter(final CmpField cmpField) {
        final String methodName = cmpField.getGetterMethod().getName();
        final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, methodName, "()" + cmpField.getDescriptor(), null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, implClassName, cmpField.getName(), cmpField.getDescriptor());
        mv.visitInsn(cmpField.getType().getOpcode(IRETURN));
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }

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        final String methodName = setterName(cmpField.getName());
        final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, methodName, "(" + cmpField.getDescriptor() + ")V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitVarInsn(cmpField.getType().getOpcode(ILOAD), 1);
        mv.visitFieldInsn(PUTFIELD, implClassName, cmpField.getName(), cmpField.getDescriptor());
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();
    }

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        // the primary key is identifed as a field.  We just return that value directly. 
        if (pkField != null) {
            // push the pk field
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, pkField.getName(), pkField.getDescriptor());


            // return the pk field (from the stack)
            mv.visitInsn(pkField.getType().getOpcode(IRETURN));
        } else if (Object.class.equals(primKeyClass)) {
            // this is a container-generated primary key.  It's a long value stored in

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            // this is a container-generated primary key.  It's a long value stored in 
            // a generated field.  We return that value, wrappered in a Long instance. 


            // push the pk field
            mv.visitVarInsn(ALOAD, 0);
            mv.visitFieldInsn(GETFIELD, implClassName, UNKNOWN_PK_NAME, UNKNOWN_PK_TYPE.getDescriptor());


            // return the pk field (from the stack)
            mv.visitInsn(UNKNOWN_PK_TYPE.getOpcode(IRETURN));
        } else {
            // We have a primary key class defined.  For every field that matches one of the

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                    throw new IllegalArgumentException("Primary key " + cmpField.getName() + " is type " + cmpField.getType().getClassName() + " but CMP field is type " + field.getType().getName());
                }


                // push the value from the cmp bean
                mv.visitVarInsn(ALOAD, 0);
                mv.visitFieldInsn(GETFIELD, implClassName, cmpField.getName(), cmpField.getDescriptor());
                // set matching field in the pk class to the value on the stack
                mv.visitFieldInsn(PUTFIELD, pkImplName, cmpField.getName(), cmpField.getDescriptor());
                mv.visitVarInsn(ALOAD, 1);
            }

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                // push the value from the cmp bean
                mv.visitVarInsn(ALOAD, 0);
                mv.visitFieldInsn(GETFIELD, implClassName, cmpField.getName(), cmpField.getDescriptor());
                // set matching field in the pk class to the value on the stack
                mv.visitFieldInsn(PUTFIELD, pkImplName, cmpField.getName(), cmpField.getDescriptor());
                mv.visitVarInsn(ALOAD, 1);
            }


            // return the Pk();
            mv.visitInsn(ARETURN);

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