1 files changed, 43 insertions, 0 deletions

diff --git a/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/registry/impl/FilteringRegistryView.java b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/registry/impl/FilteringRegistryView.java
new file mode 100644
index 00000000..164a30d3
--- /dev/null
+++ b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/registry/impl/FilteringRegistryView.java
@@ -0,0 +1,43 @@
+/*******************************************************************************
+ * Copyright (c) 2010-2016, Abel Hegedus, IncQuery Labs Ltd.
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v. 2.0 which is available at
+ * http://www.eclipse.org/legal/epl-v20.html.
+ * 
+ * SPDX-License-Identifier: EPL-2.0
+ *******************************************************************************/
+package tools.refinery.viatra.runtime.registry.impl;
+
+import tools.refinery.viatra.runtime.registry.IQuerySpecificationRegistry;
+import tools.refinery.viatra.runtime.registry.IRegistryViewFilter;
+import tools.refinery.viatra.runtime.registry.view.AbstractRegistryView;
+import tools.refinery.viatra.runtime.registry.IQuerySpecificationRegistryEntry;
+
+/**
+ * Registry view implementation that uses a filter to delegate the decision on whether 
+ * a given specification is relevant to the view.
+ * 
+ * @author Abel Hegedus
+ *
+ */
+public class FilteringRegistryView extends AbstractRegistryView {
+
+    private IRegistryViewFilter filter;
+
+    /**
+     * Creates a new filtering view instance.
+     * 
+     * @param registry that defines the view
+     * @param filter that is used for deciding relevancy
+     */
+    public FilteringRegistryView(IQuerySpecificationRegistry registry, IRegistryViewFilter filter, boolean allowDuplicateFQNs) {
+        super(registry, allowDuplicateFQNs);
+        this.filter = filter;
+    }
+
+    @Override
+    protected boolean isEntryRelevant(IQuerySpecificationRegistryEntry entry) {
+        return filter.isEntryRelevant(entry);
+    }
+
+}