For our project, we are not building the entire object graph in memory -
rather the objects are consumed an processed while JiBX unmarshalls the
XML. To achieve this, we use the store-method and iter-method of the
collection element in our config file (names changed to protect i.p.):
Configuration file:
<mapping name="BIG_XML" class="com.myproject.ObjectUpdates">
<collection field="_objectStream" store-method="add"
iter-method="iterator">
<structure name="MYELEMENT"
type="com.myproject.MyElement" choice="true" ordered="false">
...
class ObjectUpdates {
private ObjectStream _objectStream;
}
class ObjectStream {
public void add(int position, Object object) {
// process here but don't store in
memory
}
public Iterator iterator () {
// construct iterator here...
}
}
From: madhu rao [mailto:rollma...@gmail.com]
Sent: Saturday, August 15, 2009 8:27 AM
To: jibx-users@lists.sourceforge.net
Subject: [jibx-users] Parsing huge xml files using jibx
Hi All,
We are implementing a project in which we have a requirement of parsing
a huge xml file around 26MB. We decided to go with jibx to do this. So I
am bit concerned about the memory consumption of this operation. Here i
am looking forward for some suggestions as to how to reduce the memory
footprint of xml parsing
Thanks
Madhu
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