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- /* ====================================================================
- Licensed to the Apache Software Foundation (ASF) under one or more
- contributor license agreements. See the NOTICE file distributed with
- this work for additional information regarding copyright ownership.
- The ASF licenses this file to You 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 org.apache.poi.poifs.property;
-
- import java.util.Iterator;
-
- import java.io.IOException;
-
- /**
- * Behavior for parent (directory) properties
- */
- public interface Parent extends Child, Iterable<Property> {
-
- /**
- * Get an iterator over the children of this Parent; all elements
- * are instances of Property.
- *
- * @return Iterator of children; may refer to an empty collection
- */
-
- public Iterator<Property> getChildren();
-
- /**
- * Add a new child to the collection of children
- *
- * @param property the new child to be added; must not be null
- *
- * @throws IOException if the Parent already has a child with
- * the same name
- */
-
- public void addChild(final Property property)
- throws IOException;
-
- /**
- * Set the previous Child
- *
- * @param child the new 'previous' child; may be null, which has
- * the effect of saying there is no 'previous' child
- */
-
- public void setPreviousChild(final Child child);
-
- /**
- * Set the next Child
- *
- * @param child the new 'next' child; may be null, which has the
- * effect of saying there is no 'next' child
- */
-
- public void setNextChild(final Child child);
- }
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