diff --git a/query/plugins/org.eclipse.acceleo.query/src/org/eclipse/acceleo/query/runtime/IEPackageProvider.java b/query/plugins/org.eclipse.acceleo.query/src/org/eclipse/acceleo/query/runtime/IEPackageProvider.java
index 7b05f6e..4df65ad 100644
--- a/query/plugins/org.eclipse.acceleo.query/src/org/eclipse/acceleo/query/runtime/IEPackageProvider.java
+++ b/query/plugins/org.eclipse.acceleo.query/src/org/eclipse/acceleo/query/runtime/IEPackageProvider.java
@@ -75,6 +75,15 @@
 	Collection<EClassifier> getTypes(String name, String classifierName);
 
 	/**
+	 * the list of classifiers known to the package provider with the specified name.
+	 * 
+	 * @param classifierName
+	 *            the name of the searched classifier
+	 * @return the list of classifiers matching the given {@link EClassifier} names.
+	 */
+	Collection<EClassifier> getTypes(String name);
+
+	/**
 	 * the classifier with the specified name in the package registered with the specified name.
 	 * 
 	 * @param name
diff --git a/query/plugins/org.eclipse.acceleo.query/src/org/eclipse/acceleo/query/runtime/impl/EPackageProvider.java b/query/plugins/org.eclipse.acceleo.query/src/org/eclipse/acceleo/query/runtime/impl/EPackageProvider.java
index 732e15a..1594119 100644
--- a/query/plugins/org.eclipse.acceleo.query/src/org/eclipse/acceleo/query/runtime/impl/EPackageProvider.java
+++ b/query/plugins/org.eclipse.acceleo.query/src/org/eclipse/acceleo/query/runtime/impl/EPackageProvider.java
@@ -534,6 +534,23 @@
 	/**
 	 * {@inheritDoc}
 	 *
+	 * @see org.eclipse.acceleo.query.runtime.IEPackageProvider#getTypes(java.lang.String)
+	 */
+	@Override
+	public Collection<EClassifier> getTypes(String classifierName) {
+		Set<EClassifier> result = Sets.newLinkedHashSet();
+		for (EPackage ePackage : ePackages.values()) {
+			EClassifier foundClassifier = ePackage.getEClassifier(classifierName);
+			if (foundClassifier != null) {
+				result.add(foundClassifier);
+			}
+		}
+		return result;
+	}
+
+	/**
+	 * {@inheritDoc}
+	 *
 	 * @see org.eclipse.acceleo.query.runtime.IEPackageProvider#getEnumLiteral(java.lang.String,
 	 *      java.lang.String, java.lang.String)
 	 */