/**
* Examines a property's type to see which method should be used to parse the property's value.
*
* @param desc The description of the property
* @param value The value of the XML attribute containing the prop value
* @return The value stored in the element
* @throws IOException If there is an error reading the document
*/
public Object getObjectValue(PropertyDescriptor desc, String value) throws IOException {
// Find out what kind of property it is
Class type = desc.getPropertyType();
// If it's an array, get the base type
if (type.isArray()) {
type = type.getComponentType();
}
// For native types, object wrappers for natives, and strings, use the
// basic parse routine
if (type.equals(Integer.TYPE)
|| type.equals(Long.TYPE)
|| type.equals(Short.TYPE)
|| type.equals(Byte.TYPE)
|| type.equals(Boolean.TYPE)
|| type.equals(Float.TYPE)
|| type.equals(Double.TYPE)
|| Integer.class.isAssignableFrom(type)
|| Long.class.isAssignableFrom(type)
|| Short.class.isAssignableFrom(type)
|| Byte.class.isAssignableFrom(type)
|| Boolean.class.isAssignableFrom(type)
|| Float.class.isAssignableFrom(type)
|| Double.class.isAssignableFrom(type)) {
return parseBasicType(type, value);
} else if (String.class.isAssignableFrom(type)) {
return value;
} else if (java.util.Date.class.isAssignableFrom(type)) {
// If it's a date, use the date parser
return parseDate(value, JOXDateHandler.determineDateFormat());
} else {
return null;
}
}
/**
* Examines a property's type to see which method should be used to parse the property's value.
*
* @param desc The description of the property
* @param element The XML element containing the property value
* @return The value stored in the element
* @throws IOException If there is an error reading the document
*/
public Object getObjectValue(PropertyDescriptor desc, Element element) throws IOException {
// Find out what kind of property it is
Class type = desc.getPropertyType();
// If it's an array, get the base type
if (type.isArray()) {
type = type.getComponentType();
}
// For native types, object wrappers for natives, and strings, use the
// basic parse routine
if (type.equals(Integer.TYPE)
|| type.equals(Long.TYPE)
|| type.equals(Short.TYPE)
|| type.equals(Byte.TYPE)
|| type.equals(Boolean.TYPE)
|| type.equals(Float.TYPE)
|| type.equals(Double.TYPE)
|| Integer.class.isAssignableFrom(type)
|| Long.class.isAssignableFrom(type)
|| Short.class.isAssignableFrom(type)
|| Byte.class.isAssignableFrom(type)
|| Boolean.class.isAssignableFrom(type)
|| Float.class.isAssignableFrom(type)
|| Double.class.isAssignableFrom(type)
|| String.class.isAssignableFrom(type)) {
return readBasicType(type, element);
} else if (java.util.Date.class.isAssignableFrom(type)) {
// If it's a date, use the date parser
return readDate(element);
} else {
try {
// If it's an object, create a new instance of the object (it should
// be a bean, or there will be trouble)
Object newOb = type.newInstance();
// Copy the XML element into the bean
readObject(newOb, element);
return newOb;
} catch (InstantiationException exc) {
throw new IOException(
"Error creating object for " + desc.getName() + ": " + exc.toString());
} catch (IllegalAccessException exc) {
throw new IOException(
"Error creating object for " + desc.getName() + ": " + exc.toString());
}
}
}
public static Object element(Object arg, ExecutionContext context)
throws FunctionDomainException, TypeMismatchException {
if (arg == null || arg == QueryService.UNDEFINED) return QueryService.UNDEFINED;
if (arg instanceof Collection) {
Collection c = (Collection) arg;
// for remote distinct queries, the result of sub query could contain a
// mix of String and PdxString which could be duplicates, so convert all
// PdxStrings to String
if (context.isDistinct() && ((DefaultQuery) context.getQuery()).isRemoteQuery()) {
Set tempResults = new HashSet();
for (Object o : c) {
if (o instanceof PdxString) {
o = ((PdxString) o).toString();
}
tempResults.add(o);
}
c.clear();
c.addAll(tempResults);
tempResults = null;
}
checkSingleton(c.size());
return c.iterator().next();
}
// not a Collection, must be an array
Class clazz = arg.getClass();
if (!clazz.isArray())
throw new TypeMismatchException(
LocalizedStrings.Functions_THE_ELEMENT_FUNCTION_CANNOT_BE_APPLIED_TO_AN_OBJECT_OF_TYPE_0
.toLocalizedString(clazz.getName()));
// handle arrays
if (arg instanceof Object[]) {
Object[] a = (Object[]) arg;
if (((DefaultQuery) context.getQuery()).isRemoteQuery() && context.isDistinct()) {
for (int i = 0; i < a.length; i++) {
if (a[i] instanceof PdxString) {
a[i] = ((PdxString) a[i]).toString();
}
}
}
checkSingleton(a.length);
return a[0];
}
if (arg instanceof int[]) {
int[] a = (int[]) arg;
checkSingleton(a.length);
return Integer.valueOf(a[0]);
}
if (arg instanceof long[]) {
long[] a = (long[]) arg;
checkSingleton(a.length);
return Long.valueOf(a[0]);
}
if (arg instanceof boolean[]) {
boolean[] a = (boolean[]) arg;
checkSingleton(a.length);
return Boolean.valueOf(a[0]);
}
if (arg instanceof byte[]) {
byte[] a = (byte[]) arg;
checkSingleton(a.length);
return Byte.valueOf(a[0]);
}
if (arg instanceof char[]) {
char[] a = (char[]) arg;
checkSingleton(a.length);
return new Character(a[0]);
}
if (arg instanceof double[]) {
double[] a = (double[]) arg;
checkSingleton(a.length);
return Double.valueOf(a[0]);
}
if (arg instanceof float[]) {
float[] a = (float[]) arg;
checkSingleton(a.length);
return new Float(a[0]);
}
if (arg instanceof short[]) {
short[] a = (short[]) arg;
checkSingleton(a.length);
return new Short(a[0]);
}
// did I miss something?
throw new TypeMismatchException(
LocalizedStrings.Functions_THE_ELEMENT_FUNCTION_CANNOT_BE_APPLIED_TO_AN_OBJECT_OF_TYPE_0
.toLocalizedString(clazz.getName()));
}
