Examples with MethodVisitor org.apache.xbean.asm9.MethodVisitor used on opensource projects

Example 11 with MethodVisitor

use of org.apache.xbean.asm9.MethodVisitor in project tomee by apache.

the class Cmp2Generator method createOpenEJB_removeCmr.

// private void createPrintln(MethodVisitor mv, String message) {
// mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
// mv.visitLdcInsn(message);
// mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/String;)V");
// }
// private void createPrintField(MethodVisitor mv, String fieldName, String descriptor) {
// mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
// mv.visitLdcInsn(fieldName + "=");
// mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "print", "(Ljava/lang/String;)V");
// 
// mv.visitFieldInsn(GETSTATIC, "java/lang/System", "out", "Ljava/io/PrintStream;");
// mv.visitVarInsn(ALOAD, 0);
// mv.visitFieldInsn(GETFIELD, implClassName, fieldName, descriptor);
// mv.visitMethodInsn(INVOKEVIRTUAL, "java/io/PrintStream", "println", "(Ljava/lang/Object;)V");
// }
/**
 * Emit the remove logic for an individual CMR field.
 * Like the addCmr logic, each field is guarded by an
 * if test on the property name.
 *
 * @param mv
 * @param cmrField
 */
private void createOpenEJB_removeCmr(final MethodVisitor mv, final CmrField cmrField) {
    // if (${cmrField.name}.equals(arg1))
    mv.visitLdcInsn(cmrField.getName());
    mv.visitVarInsn(ALOAD, 1);
    mv.visitMethodInsn(INVOKEVIRTUAL, "java/lang/String", "equals", "(Ljava/lang/Object;)Z", false);
    // if not equal jump to end
    final Label end = new Label();
    mv.visitJumpInsn(IFEQ, end);
    // collection valued CMR field.  Remove the object from the collection.
    if (cmrField.getCmrStyle() != CmrStyle.SINGLE) {
        // ${cmrField.name}.remove(arg2)
        mv.visitVarInsn(ALOAD, 0);
        mv.visitFieldInsn(GETFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
        mv.visitVarInsn(ALOAD, 2);
        mv.visitMethodInsn(INVOKEINTERFACE, cmrField.getCmrStyle().getCollectionType().getInternalName(), "remove", "(Ljava/lang/Object;)Z", true);
        mv.visitInsn(POP);
        // return;
        mv.visitInsn(RETURN);
    } else {
        // single valued, so just null out the field.
        // this.${cmrField.name} = null;
        mv.visitVarInsn(ALOAD, 0);
        mv.visitInsn(ACONST_NULL);
        mv.visitFieldInsn(PUTFIELD, implClassName, cmrField.getName(), cmrField.getDescriptor());
        // return;
        mv.visitInsn(RETURN);
    }
    // end of if statement
    mv.visitLabel(end);
}

Example 12 with MethodVisitor

use of org.apache.xbean.asm9.MethodVisitor in project tomee by apache.

the class Cmp2Generator method createEjbStore.

public void createEjbStore() {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "ejbStore", "()V", null, null);
    mv.visitCode();
    mv.visitInsn(RETURN);
    mv.visitMaxs(0, 1);
    mv.visitEnd();
}

Example 13 with MethodVisitor

use of org.apache.xbean.asm9.MethodVisitor in project tomee by apache.

the class Cmp2Generator method createEjbRemove.

public void createEjbRemove() {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "ejbRemove", "()V", null, null);
    mv.visitCode();
    mv.visitInsn(RETURN);
    mv.visitMaxs(0, 1);
    mv.visitEnd();
}

Example 14 with MethodVisitor

use of org.apache.xbean.asm9.MethodVisitor in project tomee by apache.

the class Cmp2Generator method createGetter.

/**
 * Generate a concrete getter field for a CMP field.
 * At this point, we're just generating a simple
 * accessor for the field, given the type.  The
 * JPA engine when it makes this implementation class
 * a managed class define whatever additional logic
 * might be required.
 *
 * @param cmpField The CMP field backing this getter method.
 */
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();
}

Example 15 with MethodVisitor

use of org.apache.xbean.asm9.MethodVisitor in project tomee by apache.

the class Cmp2Generator method createSetEntityContext.

public void createSetEntityContext() {
    final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "setEntityContext", "(Ljavax/ejb/EntityContext;)V", null, null);
    mv.visitCode();
    mv.visitInsn(RETURN);
    mv.visitMaxs(0, 2);
    mv.visitEnd();
}