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Difference between revisions of "EMF Search Framework Extensibility"
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public class GenModelSearchQueryParametersFactory implements IModelSearchQueryParametersFactory { | public class GenModelSearchQueryParametersFactory implements IModelSearchQueryParametersFactory { | ||
| − | + | private static GenModelSearchQueryParametersFactory instance; | |
| − | + | public GenModelSearchQueryParametersFactory() {} | |
| − | + | public static GenModelSearchQueryParametersFactory getInstance() { | |
| − | + | return instance == null ? instance = new GenModelSearchQueryParametersFactory() : instance; | |
| − | + | } | |
| − | + | protected final class GenModelModelSearchQueryParameters extends AbstractModelSearchQueryParameters { | |
| − | + | @Override | |
| − | + | public String getModelSearchEngineID() { | |
| − | + | return "org.eclipse.emf.search.genModelSearchEngine"; //$NON-NLS-1$ | |
| − | + | } | |
| − | + | } | |
| − | + | public IModelSearchQueryParameters createSearchQueryParameters() { | |
| − | + | return new GenModelModelSearchQueryParameters(); | |
| − | + | } | |
| − | + | } | |
import java.util.ArrayList; | import java.util.ArrayList; | ||
Revision as of 15:33, 5 February 2008
search core extensibility
org.eclipse.emf.search.modelSearchEngine
Users wanting to contribute an custom ecore metamodel based search should extends modelSearchEngine.
* id - model search engine unique ID * label - Query label to be displayed as a prefix of in search result pages * searchQueryFactory - This extension point element describes a model search engine compliant with org.eclipse.emf.search.providers.IModelSearchQueryFactory APIs. * queryParametersFactory - parameter factory compliant with IModelSearchQueryParametersFactory * modelResourceValidator - resource validator compliant with IModelSearchQueryParametersFactory and specializing AbstractModelResourceValidator
Example:
<extension
point="org.eclipse.emf.search.modelSearchEngine">
<modelSearchEngine
id="org.eclipse.emf.search.genModelSearchEngine"
label="%GenModelSearchEngine.Label"
modelResourceValidator="org.eclipse.emf.search.genmodel.engine.GenModelResourceValidator"
queryParametersFactory="org.eclipse.emf.search.genmodel.factories.GenModelSearchQueryParametersFactory"
searchQueryFactory="org.eclipse.emf.search.genmodel.factories.GenModelSearchQueryFactory">
</modelSearchEngine>
</extension>
import org.eclipse.emf.search.core.engine.AbstractModelSearchQuery;
import org.eclipse.emf.search.core.factories.IModelSearchQueryFactory;
import org.eclipse.emf.search.core.parameters.IModelSearchQueryParameters;
import org.eclipse.emf.search.genmodel.engine.GenModelSearchQuery;
public class GenModelSearchQueryFactory implements IModelSearchQueryFactory {
private static GenModelSearchQueryFactory instance; public GenModelSearchQueryFactory() {} public static GenModelSearchQueryFactory getInstance() { return instance == null ? instance = new GenModelSearchQueryFactory() : instance; } public AbstractModelSearchQuery createModelSearchQuery(String expr, IModelSearchQueryParameters p) { return new GenModelSearchQuery(expr, p); }
}
import org.eclipse.emf.search.core.factories.IModelSearchQueryParametersFactory;
import org.eclipse.emf.search.core.parameters.AbstractModelSearchQueryParameters;
import org.eclipse.emf.search.core.parameters.IModelSearchQueryParameters;
public class GenModelSearchQueryParametersFactory implements IModelSearchQueryParametersFactory {
private static GenModelSearchQueryParametersFactory instance;
public GenModelSearchQueryParametersFactory() {}
public static GenModelSearchQueryParametersFactory getInstance() {
return instance == null ? instance = new GenModelSearchQueryParametersFactory() : instance;
}
protected final class GenModelModelSearchQueryParameters extends AbstractModelSearchQueryParameters {
@Override
public String getModelSearchEngineID() {
return "org.eclipse.emf.search.genModelSearchEngine"; //$NON-NLS-1$
}
}
public IModelSearchQueryParameters createSearchQueryParameters() {
return new GenModelModelSearchQueryParameters();
}
}
import java.util.ArrayList; import java.util.List;
import org.eclipse.emf.codegen.ecore.genmodel.GenBase; import org.eclipse.emf.ecore.ENamedElement; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.search.core.engine.IModelSearchQuery; import org.eclipse.emf.search.ecore.engine.EcoreModelSearchQuery; import org.eclipse.emf.search.ecore.evaluators.EcoreTextualModelSearchQueryEvaluator; import org.eclipse.emf.search.ecore.regex.ModelSearchQueryTextualExpressionEnum; import org.eclipse.emf.search.ecore.regex.ModelSearchQueryTextualExpressionMatchingHelper; import org.eclipse.emf.search.genmodel.l10n.Messages;
public class GenModelTextualModelSearchQueryEvaluatorextends EcoreTextualModelSearchQueryEvaluator<Q, T> {
@Override public List<?> eval(Q query, T target, boolean notifiy) { List<Object> results = new ArrayList<Object>(); ModelSearchQueryTextualExpressionEnum kind = ((EcoreModelSearchQuery)query).getKind(); for (Object o : query.getValidParticipantMetaElements()) { if (o instanceof GenBase) { String text = query.getQueryExpression(); text = (text == "" && kind == ModelSearchQueryTextualExpressionEnum.NORMAL_TEXT) ? "*" : text;
EObject elem = ((GenBase)o).getEcoreModelElement(); if (elem instanceof ENamedElement) { String elemName = ((ENamedElement)elem).getName(); elemName = elemName != null ? elemName : ""; //$NON-NLS-1$ if (ModelSearchQueryTextualExpressionMatchingHelper.getInstance().lookAt(elemName, text, kind)) { results.add(query.processSearchResultMatching(target, o, notifiy)); } } } } return results; } @Override public String getLabel() { return Messages.getString("GenModelTextualModelSearchQueryEvaluator.Label"); //$NON-NLS-1$ } }