1 files changed, 69 insertions, 0 deletions
diff --git a/server/src/com/vaadin/ui/renderer/Renderer.java b/server/src/com/vaadin/ui/renderer/Renderer.java
new file mode 100644
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+++ b/server/src/com/vaadin/ui/renderer/Renderer.java
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+/*
+ * Copyright 2000-2014 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+package com.vaadin.ui.renderer;
+
+import com.vaadin.server.ClientConnector;
+import com.vaadin.server.Extension;
+
+import elemental.json.JsonValue;
+
+/**
+ * A ClientConnector for controlling client-side
+ * {@link com.vaadin.client.ui.grid.Renderer Grid renderers}. Renderers
+ * currently extend the Extension interface, but this fact should be regarded as
+ * an implementation detail and subject to change in a future major or minor
+ * Vaadin revision.
+ * 
+ * @param <T>
+ *            the type this renderer knows how to present
+ * 
+ * @since
+ * @author Vaadin Ltd
+ */
+public interface Renderer<T> extends Extension {
+
+    /**
+     * Returns the class literal corresponding to the presentation type T.
+     * 
+     * @return the class literal of T
+     */
+    Class<T> getPresentationType();
+
+    /**
+     * Encodes the given value into a {@link JsonValue}.
+     * 
+     * @param value
+     *            the value to encode
+     * @return a JSON representation of the given value
+     */
+    JsonValue encode(T value);
+
+    /**
+     * This method is inherited from Extension but should never be called
+     * directly with a Renderer.
+     */
+    @Override
+    @Deprecated
+    void remove();
+
+    /**
+     * This method is inherited from Extension but should never be called
+     * directly with a Renderer.
+     */
+    @Override
+    @Deprecated
+    void setParent(ClientConnector parent);
+}