Examples of BCMethod

com.techtrader.modules.tools.bytecode.BCMethod
serp.bytecode.BCMethod
A method of a class. @author Abe White

Examples of serp.bytecode.BCMethod

     * identity and gives them no-op implementations.
     */
    private void addNoOpApplicationIdentityMethods() {
        // public void pcCopyKeyFieldsToObjectId (ObjectIdFieldSupplier fs,
        //   Object oid)
        BCMethod method = _pc.declareMethod(PRE + "CopyKeyFieldsToObjectId",
            void.class, new Class[]{ OIDFSTYPE, Object.class });
        Code code = method.getCode(true);
        code.vreturn();
        code.calculateMaxLocals();


        // public void pcCopyKeyFieldsToObjectId (Object oid)
        method = _pc.declareMethod(PRE + "CopyKeyFieldsToObjectId",
            void.class, new Class[]{ Object.class });
        code = method.getCode(true);
        code.vreturn();
        code.calculateMaxLocals();


        // public void pcCopyKeyFieldsFromObjectId (ObjectIdFieldConsumer fc,
        //  Object oid)
        method = _pc.declareMethod(PRE + "CopyKeyFieldsFromObjectId",
            void.class, new Class[]{ OIDFCTYPE, Object.class });
        code = method.getCode(true);
        code.vreturn();
        code.calculateMaxLocals();


        // public void pcCopyKeyFieldsFromObjectId (Object oid)
        method = _pc.declareMethod(PRE + "CopyKeyFieldsFromObjectId",
            void.class, new Class[]{ Object.class });
        code = method.getCode(true);
        code.vreturn();
        code.calculateMaxLocals();


        // public Object pcNewObjectIdInstance ()
        method = _pc.declareMethod(PRE + "NewObjectIdInstance",
            Object.class, null);
        code = method.getCode(true);
        code.constant().setNull();
        code.areturn();
        code.calculateMaxStack();
        code.calculateMaxLocals();


        // public Object pcNewObjectIdInstance (Object obj)
        method = _pc.declareMethod(PRE + "NewObjectIdInstance",
            Object.class, new Class[]{ Object.class });
        code = method.getCode(true);
        code.constant().setNull();
        code.areturn();
        code.calculateMaxStack();
        code.calculateMaxLocals();
    }

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Examples of serp.bytecode.BCMethod

        // public void pcCopyKeyFieldsToObjectId (ObjectIdFieldSupplier fs,
        //  Object oid)
        String[] args = (fieldManager) ?
            new String[]{ OIDFSTYPE.getName(), Object.class.getName() }
            : new String[]{ Object.class.getName() };
        BCMethod method = _pc.declareMethod(PRE + "CopyKeyFieldsToObjectId",
            void.class.getName(), args);
        Code code = method.getCode(true);


        // single field identity always throws exception
        if (_meta.isOpenJPAIdentity()) {
            throwException(code, INTERNEXCEP);

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Examples of serp.bytecode.BCMethod

        // public void pcCopyKeyFieldsFromObjectId (ObjectIdFieldConsumer fc,
        //  Object oid)
        String[] args = (fieldManager) 
            ?  new String[]{ OIDFCTYPE.getName(), Object.class.getName() }
            : new String[]{ Object.class.getName() };
        BCMethod method = _pc.declareMethod(PRE + "CopyKeyFieldsFromObjectId",
            void.class.getName(), args);
        Code code = method.getCode(true);


        // call superclass method
        if (_meta.getPCSuperclass() != null && !getCreateSubclass()) {
            loadManagedInstance(code, false);
            for (int i = 0; i < args.length; i++)

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Examples of serp.bytecode.BCMethod

     */
    private void addNewObjectIdInstanceMethod(boolean obj)
        throws NoSuchMethodException {
        // public Object pcNewObjectIdInstance ()
        Class[] args = (obj) ? new Class[]{ Object.class } : null;
        BCMethod method = _pc.declareMethod(PRE + "NewObjectIdInstance",
            Object.class, args);
        Code code = method.getCode(true);


        Boolean usesClsString = usesClassStringIdConstructor();
        Class oidType = _meta.getObjectIdType();
        if (obj && usesClsString == null) {
            // throw new IllegalArgumentException (...);

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Examples of serp.bytecode.BCMethod


        // add a version stamp
        addGetEnhancementContractVersionMethod();


        // find the default constructor
        BCMethod method = _pc.getDeclaredMethod("<init>", (String[]) null);


        // a default constructor is required
        if (method == null) {
            String name = _pc.getName();
            if (!_defCons)
                throw new UserException(_loc.get("enhance-defaultconst", name));


            method = _pc.addDefaultConstructor();
            String access;
            if (_meta.isDetachable()) {
                // externalizable requires that the constructor
                // be public, so make the added constructor public
                method.makePublic();
                access = "public";
            } else if (_pc.isFinal()) {
                method.makePrivate();
                access = "private";
            } else {
                method.makeProtected();
                access = "protected";
            }
            if (!(_meta.getDescribedType().isInterface() || getCreateSubclass())
                && _log.isWarnEnabled())
                _log.warn(_loc.get("enhance-adddefaultconst", name, access));

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Examples of serp.bytecode.BCMethod

                code.calculateMaxStack();
            }
        }


        // add write object method
        BCMethod write = _pc.getDeclaredMethod("writeObject",
            new Class[]{ ObjectOutputStream.class });
        boolean full = write == null;
        if (full) {
            // private void writeObject (ObjectOutputStream out)
            write = _pc.declareMethod("writeObject", void.class,
                new Class[]{ ObjectOutputStream.class });
            write.getExceptions(true).addException(IOException.class);
            write.makePrivate();
        }
        modifyWriteObjectMethod(write, full);


        // and read object
        BCMethod read = _pc.getDeclaredMethod("readObject",
            new Class[]{ ObjectInputStream.class });
        full = read == null;
        if (full) {
            // private void readObject (ObjectInputStream in)
            read = _pc.declareMethod("readObject", void.class,
                new Class[]{ ObjectInputStream.class });
            read.getExceptions(true).addException(IOException.class);
            read.getExceptions(true).addException
                (ClassNotFoundException.class);
            read.makePrivate();
        }
        modifyReadObjectMethod(read, full);
    }

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Examples of serp.bytecode.BCMethod

        // for generated subclasses, serialization must write an instance of
        // the superclass instead of the subclass, so that the client VM can
        // deserialize successfully.


        // private Object writeReplace() throws ObjectStreamException
        BCMethod method = _pc.declareMethod("writeReplace", Object.class, null);
        method.getExceptions(true).addException(ObjectStreamException.class);
        Code code = method.getCode(true);


        // Object o = new <managed-type>()
        code.anew().setType(_managedType); // for return
        code.dup(); // for post-<init> work
        code.dup(); // for <init>

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Examples of serp.bytecode.BCMethod

     * is detached.
     */
    private void addIsDetachedMethod()
        throws NoSuchMethodException {
        // public boolean pcIsDetached()
        BCMethod method = _pc.declareMethod(PRE + "IsDetached",
            Boolean.class, null);
        method.makePublic();
        Code code = method.getCode(true);
        boolean needsDefinitiveMethod = writeIsDetachedMethod(code);
        code.calculateMaxStack();
        code.calculateMaxLocals();
        if (!needsDefinitiveMethod) 
            return;


        // private boolean pcIsDetachedStateDefinitive()
        //   return false;
        // auxilliary enhancers may change the return value of this method
        // if their specs consider detached state definitive
        method = _pc.declareMethod(ISDETACHEDSTATEDEFINITIVE, boolean.class,
            null);
        method.makePrivate();
        code = method.getCode(true);
        code.constant().setValue(false);
        code.ireturn();
        code.calculateMaxStack();
        code.calculateMaxLocals();
    }

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Examples of serp.bytecode.BCMethod

    /**
     * Helper method to get the code for the class initializer method,
     * creating the method if it does not already exist.
     */
    private Code getOrCreateClassInitCode(boolean replaceLast) {
        BCMethod clinit = _pc.getDeclaredMethod("<clinit>");
        Code code;
        if (clinit != null) {
            code = clinit.getCode(true);
            if (replaceLast) {
                Code template = AccessController.doPrivileged(
                    J2DoPrivHelper.newCodeAction());
                code.searchForward(template.vreturn());
                code.previous();
                code.set(template.nop());
                code.next();
            }
            return code;
        }


        // add static initializer method if non exists
        clinit = _pc.declareMethod("<clinit>", void.class, null);
        clinit.makePackage();
        clinit.setStatic(true);
        clinit.setFinal(true);


        code = clinit.getCode(true);
        if (!replaceLast) {
            code.vreturn();
            code.previous();
        }
        return code;

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Examples of serp.bytecode.BCMethod

    private void addCloningCode() {
        if (_meta.getPCSuperclass() != null && !getCreateSubclass())
            return;


        // add the clone method if necessary
        BCMethod clone = _pc.getDeclaredMethod("clone", 
            (String[]) null);
        String superName = _managedType.getSuperclassName();
        Code code = null;
        if (clone == null) {
            // add clone support for base classes
            // which also implement cloneable
            boolean isCloneable = Cloneable.class.isAssignableFrom(
                _managedType.getType());
            boolean extendsObject =
                superName.equals(Object.class.getName());
            if (!isCloneable || (!extendsObject && !getCreateSubclass()))
                return;


            if (!getCreateSubclass())
                if (_log.isTraceEnabled())
                    _log.trace(
                        _loc.get("enhance-cloneable", _managedType.getName()));


            // add clone method
            // protected Object clone () throws CloneNotSupportedException
            clone = _pc.declareMethod("clone", Object.class, null);
            if (!setVisibilityToSuperMethod(clone))
                clone.makeProtected();
            clone.getExceptions(true).addException
                (CloneNotSupportedException.class);
            code = clone.getCode(true);


            // return super.clone ();
            loadManagedInstance(code, false);
            code.invokespecial().setMethod(superName, "clone",
                Object.class.getName(), null);
            code.areturn();
        } else {
            // get the clone method code
            code = clone.getCode(false);
            if (code == null)
                return;
        }


        // create template super.clone () instruction to match against

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