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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.hwpf.model;

import org.apache.poi.hwpf.model.types.FLDAbstractType;
import org.apache.poi.util.Internal;

/**
 * Class for the FLD structure.
 * 
 * @author Cedric Bosdonnat 
 */
@Internal
public final class FieldDescriptor extends FLDAbstractType
{
    public static final int FIELD_BEGIN_MARK = 0x13;
    public static final int FIELD_SEPARATOR_MARK = 0x14;
    public static final int FIELD_END_MARK = 0x15;

    public FieldDescriptor( byte[] data )
    {
        fillFields( data, 0 );
    }

    public int getBoundaryType()
    {
        return getCh();
    }

    public int getFieldType()
    {
        if ( getCh() != FIELD_BEGIN_MARK )
            throw new UnsupportedOperationException(
                    "This field is only defined for begin marks." );
        return getFlt();
    }

    public boolean isZombieEmbed()
    {
        if ( getCh() != FIELD_END_MARK )
            throw new UnsupportedOperationException(
                    "This field is only defined for end marks." );
        return isFZombieEmbed();
    }

    public boolean isResultDirty()
    {
        if ( getCh() != FIELD_END_MARK )
            throw new UnsupportedOperationException(
                    "This field is only defined for end marks." );
        return isFResultDirty();
    }

    public boolean isResultEdited()
    {
        if ( getCh() != FIELD_END_MARK )
            throw new UnsupportedOperationException(
                    "This field is only defined for end marks." );
        return isFResultEdited();
    }

    public boolean isLocked()
    {
        if ( getCh() != FIELD_END_MARK )
            throw new UnsupportedOperationException(
                    "This field is only defined for end marks." );
        return isFLocked();
    }

    public boolean isPrivateResult()
    {
        if ( getCh() != FIELD_END_MARK )
            throw new UnsupportedOperationException(
                    "This field is only defined for end marks." );
        return isFPrivateResult();
    }

    public boolean isNested()
    {
        if ( getCh() != FIELD_END_MARK )
            throw new UnsupportedOperationException(
                    "This field is only defined for end marks." );
        return isFNested();
    }

    public boolean isHasSep()
    {
        if ( getCh() != FIELD_END_MARK )
            throw new UnsupportedOperationException(
                    "This field is only defined for end marks." );
        return isFHasSep();
    }
}