/*
* 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;
using Attribute = Lucene.Net.Util.Attribute;
using Payload = Lucene.Net.Index.Payload;
namespace Lucene.Net.Analysis.Tokenattributes
{
/// The payload of a Token. See also .
[Serializable]
public class PayloadAttribute:Attribute, IPayloadAttribute, System.ICloneable
{
private Payload payload;
/// Initialize this attribute with no payload.
public PayloadAttribute()
{
}
/// Initialize this attribute with the given payload.
public PayloadAttribute(Payload payload)
{
this.payload = payload;
}
/// Returns this Token's payload.
public virtual Payload Payload
{
get { return this.payload; }
set { this.payload = value; }
}
public override void Clear()
{
payload = null;
}
public override System.Object Clone()
{
var clone = (PayloadAttribute) base.Clone();
if (payload != null)
{
clone.payload = (Payload) payload.Clone();
}
return clone;
// TODO: This code use to be as below. Any reason why? the if(payload!=null) was missing...
//PayloadAttributeImpl impl = new PayloadAttributeImpl();
//impl.payload = new Payload(this.payload.data, this.payload.offset, this.payload.length);
//return impl;
}
public override bool Equals(System.Object other)
{
if (other == this)
{
return true;
}
if (other is IPayloadAttribute)
{
PayloadAttribute o = (PayloadAttribute) other;
if (o.payload == null || payload == null)
{
return o.payload == null && payload == null;
}
return o.payload.Equals(payload);
}
return false;
}
public override int GetHashCode()
{
return (payload == null)?0:payload.GetHashCode();
}
public override void CopyTo(Attribute target)
{
IPayloadAttribute t = (IPayloadAttribute) target;
t.Payload = (payload == null)?null:(Payload) payload.Clone();
}
}
}