Isolation for applications working on shared XML data

A method for isolating application specific information using shared XML data, the method comprising the steps of:

• receiving, for a first application, one or more criteria that identifies nodes within a collection of XML documents to ignore;
• receiving, from the first application, a query that specifies a path operation based on a path;
• wherein one or more of said identified nodes is under said path;
• based at least on the one or more criteria, computing the path operation as if one or more of said identified nodes is not in the collection of XML documents;
• receiving, from a second application, one or more operations to perform on the collection of XML documents;
• and
• processing the one or more operations without ignoring the nodes identified by one or more criteria;
• wherein the method is performed by one or more computing devices.

A non-transitory computer-readable medium storing one or more sequences of instructions which, when executed by one or more processors, causes the one or more processors to isolate application specific information in XML data at least in part by causing:

• receiving one or more criteria that identifies nodes within a collection of XML documents to ignore;
• receiving a query that specifies a path operation based on a path;
• wherein one or more of said identified nodes is under said path;
• and
• based at least on the one or more criteria, computing the path operation as if one or more of said identified nodes is not in the collection of XML documents.

A non-transitory computer-readable medium storing one or more sequences of instructions which, when executed by one or more processors, causes the one or more processors to isolate application specific information using shared XML data at least in part by causing:

• receiving, for a first application, one or more criteria that identifies nodes within a collection of XML documents to ignore;
• receiving, from the first application, a query that specifies a path operation based on a path;
• wherein one or more of said identified nodes is under said path;
• based at least on the one or more criteria, computing the path operation as if one or more of said identified nodes is not in the collection of XML documents;
• receiving, from a second application, one or more operations to perform on the collection of XML documents;
• and
• processing the one or more operations without ignoring the nodes identified by one or more criteria.