Examples of org.springframework.beans.BeanWrapperImpl

org.springframework.beans.BeanWrapperImpl
Default {@link BeanWrapper} implementation that should be sufficientfor all typical use cases. Caches introspection results for efficiency.
Note: Auto-registers default property editors from the org.springframework.beans.propertyeditors package, which apply in addition to the JDK's standard PropertyEditors. Applications can call the {@link #registerCustomEditor(Class,java.beans.PropertyEditor)} methodto register an editor for a particular instance (i.e. they are not shared across the application). See the base class {@link PropertyEditorRegistrySupport} for details.
BeanWrapperImpl will convert collection and array values to the corresponding target collections or arrays, if necessary. Custom property editors that deal with collections or arrays can either be written via PropertyEditor's setValue, or against a comma-delimited String via setAsText, as String arrays are converted in such a format if the array itself is not assignable.
NOTE: As of Spring 2.5, this is - for almost all purposes - an internal class. It is just public in order to allow for access from other framework packages. For standard application access purposes, use the {@link PropertyAccessorFactory#forBeanPropertyAccess} factory method instead. @author Rod Johnson @author Juergen Hoeller @author Rob Harrop @since 15 April 2001 @see #registerCustomEditor @see #setPropertyValues @see #setPropertyValue @see #getPropertyValue @see #getPropertyType @see BeanWrapper @see PropertyEditorRegistrySupport

    @Override
    public void doTag() throws JspException {
        if (entity != null) {
            try {
                JspContext context = getJspContext();
                Object val = new BeanWrapperImpl(entity).getPropertyValue(path);
                if (logger.isDebugEnabled()) logger.debug("Obtained value [" + path + "] for bean [" + entity + "]: " + val);
                if ((val != null) && encrypt) {
                    Cipherer cipher = (Cipherer) context.getAttribute(Cipherer.CIPHERER, 2);
                    val = cipher.encrypt(val.toString());
                }

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    public void setProperty(String property) {
        this.property = property;
    }


    private Class<?> getType(Class<?> clazz, String path) throws BeansException, InstantiationException, IllegalAccessException {
      return new BeanWrapperImpl(clazz.newInstance()).getPropertyType(path);
    }

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    @RemoteMethod
    @SuppressWarnings("unchecked")
    public List<ValuePair<String, String>> fetchReferences(Class<?> clazz, String path, String query, int count, int number) throws Exception {
        Assert.isEncrypted(decipherer, path);
        DomainEntity parent = (DomainEntity) ClassUtils.instantiateClass(clazz);
        Selectable entity = (Selectable) ClassUtils.instantiateClass(new BeanWrapperImpl(parent).getPropertyType(decipherer.decrypt(path)));
        if (entity == null) entity = (Selectable) parent;
        Map<String, Object> parameters = new HashMap<String, Object>();
        parameters.put("query", query + "%");
        List<ValuePair<String, String>> result = new ArrayList<ValuePair<String, String>>(number);
        for (Object[] o : dao.executeQuery(entity.selectableQuery(), count, number, parameters))

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    public boolean update(Class entityClass, UpdateDataDTO[] data) throws Exception {
        Assert.notNull(entityClass);
        for (UpdateDataDTO dto : data) {
            Assert.isEncrypted(decipherer, dto.getPrimaryKey());
            DomainEntity o = dao.find(entityClass, new UUID(decipherer.decrypt(dto.getPrimaryKey())));
            BeanWrapper w = new BeanWrapperImpl(o);
            w.setPropertyValue(dto.getPath(), dto.getValue());
            dao.update(o);
        }
        return true;
    }

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    @SuppressWarnings("unchecked")
    protected Errors doValidation(Class clazz, String path, Object value) throws Exception {
        DomainEntity object = (DomainEntity) ClassUtils.instantiateClass(clazz);
        object.initialize(contextHolder);
        BeanWrapper validatable = new BeanWrapperImpl(object);
        validatable.registerCustomEditor(Date.class, new CustomDateEditor(new SimpleDateFormat("yyyy-MM-dd"), false));
        validatable.setPropertyValue(path, value);
        Errors errors = new BeanPropertyBindingResult(object, "target");
        validator.validate(object, errors);
        return errors;
    }

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    private String property;


    @Override public void doTag() throws JspException {
        Boolean exists = Boolean.TRUE;
        try {
            new BeanWrapperImpl(entity).getPropertyValue(path);
        } catch (Exception ex) {
            exists = Boolean.FALSE;
        }
        if (logger.isDebugEnabled()) logger.debug("Property [" + path + "] of [" + entity + "] " + (exists ? "does not exist" : "exists"));
        getJspContext().setAttribute(property, exists);

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    @RemoteMethod
    public boolean update(Class clazz, UpdateDataDTO[] data) throws Exception {
        for (UpdateDataDTO dto : data) {
            UserImpl user = dao.findUser(dto.getPrimaryKey());
            BeanWrapper w = new BeanWrapperImpl(user);
            w.setPropertyValue(dto.getPath(), dto.getValue());
            dao.createUser(user);
        }
        return true;
    }

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      Assert.isTrue(position >= 0);
      try {
            Class<?> type = clazz;
            String[] parts = path.split("\\.");
            for (int index = 0; index < parts.length - 1; index++)
                type = new BeanWrapperImpl(type.newInstance()).getPropertyType(parts[index]);
            Field field = getField(type, parts[parts.length - 1]);
            Class<?> enumType = field.getType();
            return enumType.isEnum() && (position < enumType.getEnumConstants().length) ? enumType.getEnumConstants()[position] : null;
      } catch (Exception ex) {
            throw new IWebMvcException("Could not get enum value from [" + clazz.getName() + "] with position [" + position + "]", ex);

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    public static final String SHIPPEDFROM_FIELD = "shippedFrom";
    public static final String SHIPPEDTO_FIELD = "shippedTo";


    public static Class getPropertyType(Object obj, String prop) {
        return (new BeanWrapperImpl(obj)).getPropertyType(prop);
    }

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    public static Class getPropertyType(Object obj, String prop) {
        return (new BeanWrapperImpl(obj)).getPropertyType(prop);
    }


    public static Object getPropertyValue(Object obj, String prop) {
        return (new BeanWrapperImpl(obj)).getPropertyValue(prop);
    }

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