/* ==== SERIALIZATION ==== */
/*
* TODO:
*
* this new serialization scheme is kind of lame. ideally, we shouldn't have
* to sub-class TreeElement at all; we should have an API that can
* seamlessly represent complex data model objects (like weight history or
* immunizations) as if they were explicity XML subtrees underneath the
* parent TreeElement
*
* failing that, we should wrap this scheme in an ExternalizableWrapper
*/
/*
* (non-Javadoc)
*
* @see
* org.javarosa.core.services.storage.utilities.Externalizable#readExternal
* (java.io.DataInputStream)
*/
public void readExternal(BinaryReader in_renamed, PrototypeFactory pf)
{
name = ExtUtil.nullIfEmpty(ExtUtil.readString(in_renamed));
multiplicity = ExtUtil.readInt(in_renamed);
repeatable = ExtUtil.readBool(in_renamed);
value = (IAnswerData)ExtUtil.read(in_renamed, new ExtWrapNullable(new ExtWrapTagged()), pf);
// children = ExtUtil.nullIfEmpty((Vector)ExtUtil.read(in, new
// ExtWrapList(TreeElement.class), pf));
// Jan 22, 2009 - [email protected]
// old line: children = ExtUtil.nullIfEmpty((Vector)ExtUtil.read(in, new
// ExtWrapList(TreeElement.class), pf));
// New Child deserialization
// 1. read null status as boolean
// 2. read number of children
// 3. for i < number of children
// 3.1 if read boolean true , then create TreeElement and deserialize
// directly.
// 3.2 if read boolean false then create tagged element and deserialize
// child
if (!ExtUtil.readBool(in_renamed))
{
// 1.
children = null;
}
else
{
children = new ArrayList();
// 2.
int numChildren = (int)ExtUtil.readNumeric(in_renamed);
// 3.
for (int i = 0; i < numChildren; ++i)
{
Boolean normal = ExtUtil.readBool(in_renamed);
TreeElement child;
if (normal)
{
// 3.1
child = new TreeElement();
child.readExternal(in_renamed, pf);
}
else
{
// 3.2
child = (TreeElement)ExtUtil.read(in_renamed, new ExtWrapTagged(), pf);
}
child.setParent(this);
children.Add(child);
}
}
// end Jan 22, 2009
dataType = ExtUtil.readInt(in_renamed);
relevant = ExtUtil.readBool(in_renamed);
required = ExtUtil.readBool(in_renamed);
enabled = ExtUtil.readBool(in_renamed);
relevantInherited = ExtUtil.readBool(in_renamed);
enabledInherited = ExtUtil.readBool(in_renamed);
constraint = (Constraint)ExtUtil.read(in_renamed, new ExtWrapNullable(
typeof(Constraint)), pf);
preloadHandler = ExtUtil.nullIfEmpty(ExtUtil.readString(in_renamed));
preloadParams = ExtUtil.nullIfEmpty(ExtUtil.readString(in_renamed));
ArrayList attStrings = ExtUtil.nullIfEmpty((ArrayList)ExtUtil.read(in_renamed,
new ExtWrapList(typeof(String)), pf));
setAttributesFromSingleStringVector(attStrings);
}
