#region License
/*
* Copyright 2002-2008 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
using System;
using Spring.Core;
namespace Spring.Objects.Factory.Config{
/// <summary>
/// Descriptor for a specific dependency that is about to be injected.
/// Wraps a constructor parameter, a method parameter or a field,
/// allowing unified access to their metadata.
/// </summary>
/// <author>Juergen Hoeller</author>
/// <author>Mark Pollack</author>
public class DependencyDescriptor
{
private MethodParameter methodParameter;
private readonly bool required;
private readonly bool eager;
/// <summary>
/// Initializes a new instance of the <see cref="DependencyDescriptor"/> class for a method or constructor parameter.
/// Considers the dependency as 'eager'
/// </summary>
/// <param name="methodParameter">The MethodParameter to wrap.</param>
/// <param name="required">if set to <c>true</c> if the dependency is required.</param>
public DependencyDescriptor(MethodParameter methodParameter, bool required) : this(methodParameter, required, true)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="DependencyDescriptor"/> class for a method or a constructor parameter.
/// </summary>
/// <param name="methodParameter">The MethodParameter to wrap.</param>
/// <param name="required">if set to <c>true</c> the dependency is required.</param>
/// <param name="eager">if set to <c>true</c> the dependency is 'eager' in the sense of
/// eagerly resolving potential target objects for type matching.</param>
public DependencyDescriptor(MethodParameter methodParameter, bool required, bool eager)
{
this.methodParameter = methodParameter;
this.required = required;
this.eager = eager;
}
/// <summary>
/// Gets a value indicating whether this dependency is required.
/// </summary>
/// <value><c>true</c> if required; otherwise, <c>false</c>.</value>
public bool Required
{
get { return required; }
}
/// <summary>
/// Determine the declared (non-generic) type of the wrapped parameter/field.
/// </summary>
/// <value>The type of the dependency (never <code>null</code></value>
public Type DependencyType
{
get { return methodParameter.ParameterType; }
}
/// <summary>
/// Gets a value indicating whether this <see cref="DependencyDescriptor"/> is eager in the sense of
/// eagerly resolving potential target beans for type matching.
/// </summary>
/// <value><c>true</c> if eager; otherwise, <c>false</c>.</value>
public bool Eager
{
get { return this.eager; }
}
/// <summary>
/// Gets the wrapped MethodParameter, if any.
/// </summary>
/// <value>The method parameter.</value>
public MethodParameter MethodParameter
{
get { return methodParameter; }
}
}
}
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