Notice: This Wiki is now read only and edits are no longer possible. Please see: https://gitlab.eclipse.org/eclipsefdn/helpdesk/-/wikis/Wiki-shutdown-plan for the plan.
Difference between revisions of "JDT Core Programmer Guide"
(→Search Engine) |
(→Search Engine) |
||
| Line 4: | Line 4: | ||
== Search Engine == | == Search Engine == | ||
Indexes of declarations, references and type hierarchy relationships. | Indexes of declarations, references and type hierarchy relationships. | ||
| + | |||
| + | Searching steps: | ||
| + | # Get the file names from indexes | ||
| + | # Parse the file and find out matching nodes | ||
| + | # Resolve types and narrow down matches reported from index | ||
| + | # Create the appropriate model element | ||
| + | |||
=== Using the APIs, an example === | === Using the APIs, an example === | ||
Revision as of 12:16, 18 June 2012
Overview
Java Model
Java model is a lightweight model for views.
Search Engine
Indexes of declarations, references and type hierarchy relationships.
Searching steps:
- Get the file names from indexes
- Parse the file and find out matching nodes
- Resolve types and narrow down matches reported from index
- Create the appropriate model element
Using the APIs, an example
Create a search pattern:
SearchPattern pattern = SearchPattern.createPattern( "foo(*) int", IJavaSearchConstants.METHOD, IJavaSearchConstants.DECLARATIONS, SearchPattern.R_PATTERN_MATCH );
Create a search scope:
IJavaSearchScope scope = SearchEngine.createWorkspaceScope();
Collect results using SearchRequestor subclass:
SearchRequestor requestor = new SearchRequestor() {
public void acceptSearchMatch(SearchMatch match) {
System.out.println(match.getElement());
}
};
Start search:
new SearchEngine().search(
pattern,
new SearchParticipant[] { SearchEngine.getDefaultSearchParticipant()},
scope,
requestor,
null /*progress monitor*/
);
AST
Precise, fully resolved compiler parse tree.