/**
* @param value
* @param runtime
* @param appender
* @param ctx
* @param factory
*/
public void processOrder(
Object value,
TemplateRuntime runtime,
TemplateOutputStream appender,
QueryContext ctx,
VariableResolverFactory factory) {
if (value instanceof Iterable) {
Iterable<?> ordItems = (Iterable<?>) value;
new Joiner(appender).join(ordItems);
} else if (value instanceof CharSequence) {
CharSequence seq = (CharSequence) value;
if (seq.length() > 0) {
appender.append(ORDER_BY_PREFIX);
appender.append((CharSequence) value);
}
} else {
Object[] ordItems = asObjectArray(value);
if (ordItems != null) {
new Joiner(appender).join(ordItems);
} else if (value != null) {
appender.append(ORDER_BY_PREFIX);
appender.append(value.toString());
}
}
}
public Object eval(
TemplateRuntime runtime,
TemplateOutputStream appender,
Object ctx,
VariableResolverFactory factory) {
Iterator[] iters = new Iterator[item.length];
Object o;
for (int i = 0; i < iters.length; i++) {
if ((o = MVEL.eval(expression[i], ctx, factory)) instanceof Iterable) {
iters[i] = ((Iterable) o).iterator();
} else if (o instanceof Object[]) {
iters[i] = new ArrayIterator((Object[]) o);
} else {
throw new TemplateRuntimeError("cannot iterate object type: " + o.getClass().getName());
}
}
Map<String, Object> locals = new HashMap<String, Object>();
MapVariableResolverFactory localFactory = new MapVariableResolverFactory(locals, factory);
int iterate = iters.length;
while (true) {
for (int i = 0; i < iters.length; i++) {
if (!iters[i].hasNext()) {
iterate--;
locals.put(item[i], "");
} else {
locals.put(item[i], iters[i].next());
}
}
if (iterate != 0) {
nestedNode.eval(runtime, appender, ctx, localFactory);
if (sepExpr != null) {
for (Iterator it : iters) {
if (it.hasNext()) {
appender.append(String.valueOf(MVEL.eval(sepExpr, ctx, factory)));
break;
}
}
}
} else break;
}
return next != null ? next.eval(runtime, appender, ctx, factory) : null;
}
/**
* @param appender
* @param ord
*/
protected void appendOrder(TemplateOutputStream appender, OrderBy ord) {
appender.append(ord.getOrderItem()).append(" ").append(ord.getOrder().name());
}
@Override
protected TemplateOutputStream appendFirst(TemplateOutputStream output, Object value) {
output.append(ORDER_BY_PREFIX);
return output.append(value.toString());
}
@Override
protected TemplateOutputStream append(TemplateOutputStream output, Object value) {
return output.append(value.toString());
}