# FDFNamedPageReference.java

    /*
     * 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.pdfbox.pdmodel.fdf;

    import java.io.IOException;

    import org.apache.pdfbox.cos.COSDictionary;
    import org.apache.pdfbox.cos.COSName;
    import org.apache.pdfbox.pdmodel.common.COSObjectable;
    import org.apache.pdfbox.pdmodel.common.filespecification.PDFileSpecification;

    /**
     * This represents an FDF named page reference that is part of the FDF field.
     *
     * @author Ben Litchfield
     */
    public class FDFNamedPageReference implements COSObjectable
    {
        private final COSDictionary ref;

        /**
         * Default constructor.
         */
        public FDFNamedPageReference()
        {
            ref = new COSDictionary();
        }

        /**
         * Constructor.
         *
         * @param r The FDF named page reference dictionary.
         */
        public FDFNamedPageReference(COSDictionary r)
        {
            ref = r;
        }

        /**
         * Convert this standard java object to a COS object.
         *
         * @return The cos object that matches this Java object.
         */
        @Override
        public COSDictionary getCOSObject()
        {
            return ref;
        }

        /**
         * This will get the name of the referenced page. A required parameter.
         *
         * @return The name of the referenced page.
         */
        public String getName()
        {
            return ref.getString(COSName.NAME);
        }

        /**
         * This will set the name of the referenced page.
         *
         * @param name The referenced page name.
         */
        public void setName(String name)
        {
            ref.setString(COSName.NAME, name);
        }

        /**
         * This will get the file specification of this reference. An optional parameter.
         *
         * @return The F entry for this dictionary.
         *
         * @throws IOException If there is an error creating the file spec.
         */
        public PDFileSpecification getFileSpecification() throws IOException
        {
            return PDFileSpecification.createFS(ref.getDictionaryObject(COSName.F));
        }

        /**
         * This will set the file specification for this named page reference.
         *
         * @param fs The file specification to set.
         */
        public void setFileSpecification(PDFileSpecification fs)
        {
            ref.setItem(COSName.F, fs);
        }
    }