org.eclipse.osbp.xtext.oxtype/src/org/eclipse/osbp/xtext/oxtype/imports/IShouldImportProvider.java

package org.eclipse.osbp.xtext.oxtype.imports;

import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;

import com.google.inject.ImplementedBy;

/**
 * Every grammar using the {@link EObjectUsageCollector} need to provide an
 * implementation.
 */
@ImplementedBy(DefaultShouldImportProvider.class)
public interface IShouldImportProvider {

	/**
	 * Returns true, if the given eObject should be imported.
	 * 
	 * @param toImport
	 *            - the EObject that may be imported
	 * @param eRef
	 *            - the {@link EReference}
	 * @param contextthe
	 *            root EObject of the resource
	 * @return
	 */
	boolean shouldImport(EObject toImport, EReference eRef, EObject context);

	/**
	 * Returns true, if for the given parameters, the content assist should show
	 * all available elements.
	 * 
	 * @param context
	 * @param reference
	 * @return
	 */
	boolean shouldProposeAllElements(EObject context, EReference reference);
	
	/**
	 * Returns true, if for the given parameters, the selected proposal should be automatically imported.
	 * 
	 * @param context
	 * @param reference
	 * @return
	 */
	boolean shouldAutoImport(EObject context, EReference reference);

}