The Query2 component facilitates the process of search and retrieval of emf model elements in a structured format with an additional advantage that resource loading is minimized during execution.
Query2 uses an in-built index mechanism to speed up the queries. The indexes are build before query execution and used during query execution. The indexes can be re-used by multiple query executions. For most queries, the resources are not loaded, dramatically reducing memory consumption.
Query2 supports multiple ways to specify queries.
- User can use APIs for the basic EObject based Condition objects that are used to formulate queries for EMF models.
- User can specify queries in SQL like syntax. e.g from Manuscript as a select a.pages where a.title = "Learning Query2"
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