Examples of org.eclipse.persistence.internal.helper.ConversionManager

Package org.eclipse.persistence.internal.helper

Examples of org.eclipse.persistence.internal.helper.ConversionManager

org.eclipse.persistence.internal.helper.ConversionManager
Purpose: Contains the conversion routines for some common classes in the system. Primarily used to convert objects from a given database type to a different type in Java. Uses a singleton instance, this is also used from the platform.
Responsibilities:
- Execute the appropriate conversion routine.

     * Used for batch reading, most following same order and fields as in the mapping.
     */
    protected Vector extractSourceKeyFromRow(AbstractRecord row, AbstractSession session) {
        int size = sourceKeyFields.size();
        Vector key = new Vector(size);
        ConversionManager conversionManager = session.getDatasourcePlatform().getConversionManager();


        for (int index = 0; index < size; index++) {
            DatabaseField targetField = targetForeignKeyFields.get(index);
            DatabaseField sourceField = sourceKeyFields.get(index);
            Object value = row.get(targetField);


            // Must ensure the classification gets a cache hit.
            try {
                value = conversionManager.convertObject(value, sourceField.getType());
            } catch (ConversionException e) {
                throw ConversionException.couldNotBeConverted(this, getDescriptor(), e);
            }


            key.addElement(value);

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    private java.lang.annotation.Annotation[] getAnnotations(TypeMappingInfo tmInfo) {
        if (tmInfo.getXmlElement() != null) {
            ClassLoader loader = helper.getClassLoader();
            // create a single ConversionManager for that will be shared by the
            // proxy objects
            ConversionManager cMgr = new ConversionManager();
            cMgr.setLoader(loader);


            // unmarshal the node into an XmlElement
            org.eclipse.persistence.jaxb.xmlmodel.XmlElement xElt = (org.eclipse.persistence.jaxb.xmlmodel.XmlElement) CompilerHelper.getXmlElement(tmInfo.getXmlElement(), loader);
            List annotations = new ArrayList();
            // where applicable, a given dynamic proxy will contain a Map of

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     */
    @Override
    protected Object extractKeyFromTargetRow(AbstractRecord row, AbstractSession session) {
        int size = this.targetForeignKeyFields.size();
        Object[] key = new Object[size];
        ConversionManager conversionManager = session.getDatasourcePlatform().getConversionManager();
        for (int index = 0; index < size; index++) {
            DatabaseField targetField = this.targetForeignKeyFields.get(index);
            DatabaseField sourceField = this.sourceKeyFields.get(index);
            Object value = row.get(targetField);
            // Must ensure the classification gets a cache hit.
            try {
                value = conversionManager.convertObject(value, sourceField.getType());
            } catch (ConversionException e) {
                throw ConversionException.couldNotBeConverted(this, getDescriptor(), e);
            }
            key[index] = value;
        }

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     */
    @Override
    protected Object extractBatchKeyFromRow(AbstractRecord row, AbstractSession session) {
        int size = this.sourceKeyFields.size();
        Object[] key = new Object[size];
        ConversionManager conversionManager = session.getDatasourcePlatform().getConversionManager();
        for (int index = 0; index < size; index++) {
            DatabaseField field = this.sourceKeyFields.get(index);
            Object value = row.get(field);
            // Must ensure the classification gets a cache hit.
            try {
                value = conversionManager.convertObject(value, field.getType());
            } catch (ConversionException exception) {
                throw ConversionException.couldNotBeConverted(this, this.descriptor, exception);
            }
            key[index] = value;
        }

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            }
        }


        private JAXBContextState createContextState(Generator generator, JaxbClassLoader loader, Type[] typesToBeBound, Map properties) throws Exception {
            Project proj = generator.generateProject();
            ConversionManager conversionManager = null;
            if (classLoader != null) {
                conversionManager = new ConversionManager();
                conversionManager.setLoader(loader);
            } else {
                conversionManager = ConversionManager.getDefaultManager();
            }
            proj.convertClassNamesToClasses(conversionManager.getLoader());
            // need to make sure that the java class is set properly on each
            // descriptor when using java classname - req'd for JOT api implementation
            for (Iterator<ClassDescriptor> descriptorIt = proj.getOrderedDescriptors().iterator(); descriptorIt.hasNext();) {
                ClassDescriptor descriptor = descriptorIt.next();
                if (descriptor.getJavaClass() == null) {
                    descriptor.setJavaClass(conversionManager.convertClassNameToClass(descriptor.getJavaClassName()));
                }
            }




            XMLPlatform platform = new SAXPlatform();

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            }
        }


        private JAXBContextState createContextState(Generator generator, JaxbClassLoader loader, TypeMappingInfo[] typesToBeBound, Map properties) throws Exception {
            Project proj = generator.generateProject();
            ConversionManager conversionManager = null;
            if (classLoader != null) {
                conversionManager = new ConversionManager();
                conversionManager.setLoader(loader);
            } else {
                conversionManager = ConversionManager.getDefaultManager();
            }
            proj.convertClassNamesToClasses(conversionManager.getLoader());
            // need to make sure that the java class is set properly on each
            // descriptor when using java classname - req'd for JOT api implementation
            for (Iterator<ClassDescriptor> descriptorIt = proj.getOrderedDescriptors().iterator(); descriptorIt.hasNext();) {
                ClassDescriptor descriptor = descriptorIt.next();
                if (descriptor.getJavaClass() == null) {
                    descriptor.setJavaClass(conversionManager.convertClassNameToClass(descriptor.getJavaClassName()));
                }
            }


            XMLPlatform platform = new SAXPlatform();
            platform.getConversionManager().setLoader(loader);

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     * type.
     * 
     * @return an object representing the given TemporalType.
     */
    protected Object convertTemporalType(Object value, TemporalType type) {
        ConversionManager conversionManager = ((org.eclipse.persistence.internal.sessions.AbstractSession) getEntityManager().getActiveSession()).getDatasourcePlatform().getConversionManager();
        if (type == TemporalType.TIME) {
            return conversionManager.convertObject(value, ClassConstants.TIME);
        } else if (type == TemporalType.TIMESTAMP) {
            return conversionManager.convertObject(value, ClassConstants.TIMESTAMP);
        } else if (type == TemporalType.DATE) {
            return conversionManager.convertObject(value, ClassConstants.SQLDATE);
        }
        return value;
    }

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     * 
     * @param session
     * @return
     */
    public static DynamicClassLoader lookup(Session session) {
        ConversionManager cm = null;


        if (session == null) {
            cm = ConversionManager.getDefaultManager();
        } else {
            cm = session.getPlatform().getConversionManager();
        }


        if (cm.getLoader() instanceof DynamicClassLoader) {
            return (DynamicClassLoader) cm.getLoader();
        }


        DynamicClassLoader dcl = new DynamicClassLoader(cm.getLoader());
        cm.setLoader(dcl);


        if (session == null) {
            ConversionManager.setDefaultLoader(dcl);
        }

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     */
    protected SessionLog buildJavaLogConfig(JavaLogConfig javaLogConfig, AbstractSession session) {
        SessionLog javaLog = null;
        try {
            // use ConversionManager to avoid loading the JDK 1.4 class unless it is needed.
            ConversionManager conversionManager = new ConversionManager();
            conversionManager.setLoader(getClass().getClassLoader());
            javaLog = (SessionLog)((Class)conversionManager.convertObject("org.eclipse.persistence.logging.JavaLog", Class.class)).newInstance();
            javaLog.setSession(session);
        } catch (Exception exception) {
            throw ValidationException.unableToLoadClass("org.eclipse.persistence.logging.JavaLog", exception);
        }

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    private java.lang.annotation.Annotation[] getAnnotations(TypeMappingInfo tmInfo) {
        if (tmInfo.getXmlElement() != null) {
            ClassLoader loader = helper.getClassLoader();
            // create a single ConversionManager for that will be shared by the
            // proxy objects
            ConversionManager cMgr = new ConversionManager();
            cMgr.setLoader(loader);


            // unmarshal the node into an XmlElement
            org.eclipse.persistence.jaxb.xmlmodel.XmlElement xElt = (org.eclipse.persistence.jaxb.xmlmodel.XmlElement) CompilerHelper.getXmlElement(tmInfo.getXmlElement(), loader);
            List annotations = new ArrayList();
            // where applicable, a given dynamic proxy will contain a Map of

View Full Code Here

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