At present in the structure of the join under the decision is based on a single document, namely only the node of a document is encoded to achieve structure join. When a document is inserted into the node, or need to be modified, you need to modify part or all of the nodes coding whcih could lead to reduce the query efficiency. Based on the thought of aspect-oriented method of woven into the implementation of data structure join undermulti-documents, so when need to modify the XML document, the code changes to minimum, so as to improve the efficiency of the XML document structure query. This study on the analysis and comparison of the existing structurejoin algorithm, proposed based on woven into the structure of the multi -document join algorithm. Discussed in this article weave set encoding, does not change the original XML document tree node code, only the coding correction, woven into XML document root node and other nodes coding doesn't change.
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