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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.
*/
using System;
namespace Lucene.Net.Search
{
/// <summary> Expert: A ScoreDoc which also contains information about
/// how to sort the referenced document. In addition to the
/// document number and score, this object contains an array
/// of values for the document from the field(s) used to sort.
/// For example, if the sort criteria was to sort by fields
/// "a", "b" then "c", the <code>fields</code> object array
/// will have three elements, corresponding respectively to
/// the term values for the document in fields "a", "b" and "c".
/// The class of each element in the array will be either
/// Integer, Float or String depending on the type of values
/// in the terms of each field.
///
/// <p>Created: Feb 11, 2004 1:23:38 PM
///
/// </summary>
/// <author> Tim Jones (Nacimiento Software)
/// </author>
/// <since> lucene 1.4
/// </since>
/// <version> $Id: FieldDoc.java 472959 2006-11-09 16:21:50Z yonik $
/// </version>
/// <seealso cref="ScoreDoc">
/// </seealso>
/// <seealso cref="TopFieldDocs">
/// </seealso>
[Serializable]
public class FieldDoc : ScoreDoc
{
/// <summary>Expert: The values which are used to sort the referenced document.
/// The order of these will match the original sort criteria given by a
/// Sort object. Each Object will be either an Integer, Float or String,
/// depending on the type of values in the terms of the original field.
/// </summary>
/// <seealso cref="Sort">
/// </seealso>
/// <seealso cref="Searcher#Search(Query,Filter,int,Sort)">
/// </seealso>
#if !FRAMEWORK_1_1
[NonSerialized] // Do not serialize "fields". Instead serialize "fieldsClone"
#endif
public System.IComparable[] fields;
/// <summary>Expert: Creates one of these objects with empty sort information. </summary>
public FieldDoc(int doc, float score) : base(doc, score)
{
}
/// <summary>Expert: Creates one of these objects with the given sort information. </summary>
public FieldDoc(int doc, float score, System.IComparable[] fields) : base(doc, score)
{
this.fields = fields;
}
#if !FRAMEWORK_1_1
#region SERIALIZATION
internal object[] fieldsClone = null;
[System.Runtime.Serialization.OnSerializing]
void OnSerializing(System.Runtime.Serialization.StreamingContext context)
{
if (fields == null) return;
// Copy "fields" to "fieldsClone"
fieldsClone = new object[fields.Length];
for (int i = 0; i < fields.Length; i++)
{
fieldsClone[i] = fields[i];
}
}
[System.Runtime.Serialization.OnDeserialized]
void OnDeserialized(System.Runtime.Serialization.StreamingContext context)
{
if (fieldsClone == null) return;
// Form "fields" from "fieldsClone"
fields = new IComparable[fieldsClone.Length];
for (int i = 0; i < fields.Length; i++)
{
fields[i] = (IComparable)fieldsClone[i];
}
}
#endregion
#endif
}
}
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