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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.
- */
-
- /* $Id$ */
-
- package org.apache.fop.area;
-
- import java.util.List;
-
- /**
- * Resolvable Interface. Classes that implement this interface contain
- * idrefs (see Section 5.11 of spec for definition of <idref> datatype)
- * that are resolved when their target IDs are added to the area tree.
- */
- public interface Resolvable {
-
- /**
- * Check if this area has been resolved.
- *
- * @return true once this area is resolved
- */
- boolean isResolved();
-
- /**
- * Get the array of idrefs of this resolvable object.
- * If this object contains child resolvables that are
- * resolved through this then it should return the idref's of
- * the child also.
- *
- * @return the id references for resolving this object
- */
- String[] getIDRefs();
-
- /**
- * This method allows the Resolvable object to resolve one of
- * its unresolved idrefs with the actual set of PageViewports
- * containing the target ID. The Resolvable object initially
- * identifies to the AreaTreeHandler which idrefs it needs
- * resolved. After the idrefs are resolved, the ATH calls this
- * method to allow the Resolvable object to update itself with
- * the PageViewport information.
- *
- * @param id an ID matching one of the Resolvable object's
- * unresolved idref's.
- * @param pages the list of PageViewports with the given ID
- *
- */
- void resolveIDRef(String id, List<PageViewport> pages);
- }
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