#region License
/*
* Copyright 2002-2005 the original author or authors.
*
* Licensed 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.
*/
#endregion
#region Imports
using System.Collections;
using Spring.Core;
#endregion
namespace Spring.Core{
/// <summary>
/// A <see cref="Spring.Core.ICriteria"/> implementation that represents
/// a composed collection of <see cref="Spring.Core.ICriteria"/> instances.
/// </summary>
public class ComposedCriteria : ICriteria
{
#region Constructor (s) / Destructor
/// <summary>
/// Creates a new instance of the
/// <see cref="ComposedCriteria"/> class.
/// </summary>
public ComposedCriteria() : this(null)
{
}
/// <summary>
/// Creates a new instance of the
/// <see cref="ComposedCriteria"/> class.
/// </summary>
/// <param name="criteria">
/// A user-defined (child) criteria that will be composed into this instance.
/// </param>
public ComposedCriteria(ICriteria criteria)
{
_criteria = new ArrayList();
Add(criteria);
}
#endregion
#region Methods
/// <summary>
/// Does the supplied <paramref name="datum"/> satisfy the criteria encapsulated by
/// this instance?
/// </summary>
/// <param name="datum">The data to be checked by this criteria instance.</param>
/// <returns>
/// True if the supplied <paramref name="datum"/> satisfies the criteria encapsulated
/// by this instance; false if not or the supplied <paramref name="datum"/> is null.
/// </returns>
public virtual bool IsSatisfied(object datum)
{
foreach (ICriteria criteria in _criteria)
{
if (!criteria.IsSatisfied(datum))
{
return false;
}
}
return true;
}
/// <summary>
/// Adds the supplied <parameref name="criteria"/> into the criteria
/// composed within this instance.
/// </summary>
/// <param name="criteria">
/// The <see cref="Spring.Core.ICriteria"/> to be added.
/// </param>
public void Add(ICriteria criteria)
{
if (criteria != null)
{
_criteria.Add(criteria);
}
}
#endregion
/// <summary>
/// The list of <see cref="Spring.Core.ICriteria"/> composing this
/// instance.
/// </summary>
protected IList Criteria
{
get { return _criteria; }
}
#region Fields
private IList _criteria;
#endregion
}
}
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