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diff --git a/isoparser/src/main/java/com/coremedia/iso/boxes/.svn/text-base/ContainerBox.java.svn-base b/isoparser/src/main/java/com/coremedia/iso/boxes/.svn/text-base/ContainerBox.java.svn-base
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+++ b/isoparser/src/main/java/com/coremedia/iso/boxes/.svn/text-base/ContainerBox.java.svn-base
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+/*  
+ * Copyright 2008 CoreMedia AG, Hamburg
+ *
+ * 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.coremedia.iso.boxes;
+
+import com.coremedia.iso.IsoFile;
+
+import java.util.List;
+
+/**
+ * Interface for all ISO boxes that may contain other boxes.
+ */
+public interface ContainerBox extends Box {
+
+    /**
+     * Gets all child boxes. May not return <code>null</code>.
+     *
+     * @return an array of boxes, empty array in case of no children.
+     */
+    List<Box> getBoxes();
+
+    /**
+     * Sets all boxes and removes all previous child boxes.
+     * @param boxes the new list of children
+     */
+    void setBoxes(List<Box> boxes);
+
+    /**
+     * Gets all child boxes of the given type. May not return <code>null</code>.
+     *
+     * @param clazz child box's type
+     * @return an array of boxes, empty array in case of no children.
+     */
+    <T extends Box> List<T> getBoxes(Class<T> clazz);
+
+    /**
+     * Gets all child boxes of the given type. May not return <code>null</code>.
+     *
+     * @param clazz     child box's type
+     * @param recursive step down the tree
+     * @return an array of boxes, empty array in case of no children.
+     */
+    <T extends Box> List<T> getBoxes(Class<T> clazz, boolean recursive);
+
+    /**
+     * Gets the parent box. May be <code>null</code> in case of the
+     * {@link com.coremedia.iso.IsoFile} itself.
+     *
+     * @return a <code>ContainerBox</code> that contains <code>this</code>
+     */
+    ContainerBox getParent();
+
+    /**
+     * Returns the number of bytes from the start of the box to start of the first child.
+     *
+     * @return offset of first child from box start
+     */
+    long getNumOfBytesToFirstChild();
+
+    IsoFile getIsoFile();
+}