XOM - XML object model in Java

XOM is a new XML object model. It is a tree-based API for processing XML with Java that strives for correctness, simplicity, and performance, in that order.

XOM is fairly unique in that it is a dual streaming/tree-based API. Individual nodes in the tree can be processed while the document is still being built. The enables XOM programs to operate almost as fast as the underlying parser can supply data. You don't need to wait for the document to be completely parsed before you can start working with it.

XOM is very memory efficient. If you read an entire document into memory, XOM uses as little memory as possible.