IContainer インターフェイス
アセンブリ: System (system.dll 内)
構文
<ComVisibleAttribute(True)> _ Public Interface IContainer Inherits IDisposable
[ComVisibleAttribute(true)] public interface IContainer : IDisposable
ComVisibleAttribute(true) public interface IContainer extends IDisposable
コンテナとは、0 個以上のコンポーネントをカプセル化し、追跡するオブジェクトです。この場合、コンテインメントとは、ビジュアル コンテインメントではなく論理的なコンテインメントを意味します。ビジュアルおよび非ビジュアルの両方を含むさまざまなシナリオで、コンポーネントとコンテナを使用できます。
実装時の注意 コンテナでは、クラスはコンポーネントの追加、削除、および検索のためのメソッドをサポートしている IContainer インターフェイスを実装する必要があります。'This code segment implements the IContainer interface. The code segment 'containing the implementation of ISite and IComponent can be found in the documentation 'for those interfaces. 'Implement the LibraryContainer using the IContainer interface. Class LibraryContainer Implements IContainer Private m_bookList As ArrayList Public Sub New() m_bookList = New ArrayList() End Sub Public Sub Add(ByVal book As IComponent) Implements IContainer.Add 'The book will be added without creation of the ISite object. m_bookList.Add(book) End Sub Public Sub Add(ByVal book As IComponent, ByVal ISNDNNum As String) Implements IContainer.Add Dim i As Integer Dim curObj As IComponent For i = 0 To m_bookList.Count - 1 curObj = CType(m_bookList(i), IComponent) If Not curObj.Site Is Nothing Then If (curObj.Site.Name.Equals(ISNDNNum)) Then Throw New SystemException("The ISBN number already exists in the container") End If End If Next i Dim data As ISBNSite = New ISBNSite(Me, book) data.Name = ISNDNNum book.Site = data m_bookList.Add(book) End Sub Public Sub Remove(ByVal book As IComponent) Implements IContainer.Remove Dim i As Integer Dim curComp As BookComponent = CType(book, BookComponent) For i = 0 To m_bookList.Count - 1 If (curComp.Equals(m_bookList(i)) = True) Then m_bookList.RemoveAt(i) Exit For End If Next i End Sub Public ReadOnly Property Components() As ComponentCollection Implements IContainer.Components Get Dim datalist(m_bookList.Count - 1) As IComponent m_bookList.CopyTo(datalist) Return New ComponentCollection(datalist) End Get End Property Public Overridable Sub Dispose() Implements IDisposable.Dispose Dim i As Integer For i = 0 To m_bookList.Count - 1 Dim curObj As IComponent = CType(m_bookList(i), IComponent) curObj.Dispose() Next i m_bookList.Clear() End Sub Public Shared Sub Main() Dim cntrExmpl As LibraryContainer = New LibraryContainer() Try Dim book1 As BookComponent = New BookComponent("Wizard's First Rule", "Terry Gooodkind") cntrExmpl.Add(book1, "0812548051") Dim book2 As BookComponent = New BookComponent("Stone of Tears", "Terry Gooodkind") cntrExmpl.Add(book2, "0812548094") Dim book3 As BookComponent = New BookComponent("Blood of the Fold", "Terry Gooodkind") cntrExmpl.Add(book3, "0812551478") Dim book4 As BookComponent = New BookComponent("The Soul of the Fire", "Terry Gooodkind") 'This will generate an exception, because the ISBN already exists in the container. cntrExmpl.Add(book4, "0812551478") Catch e As SystemException Console.WriteLine("Error description: " + e.Message) End Try Dim datalist As ComponentCollection = cntrExmpl.Components Dim denum As IEnumerator = datalist.GetEnumerator() While (denum.MoveNext()) Dim cmp As BookComponent = CType(denum.Current, BookComponent) Console.WriteLine("Book Title: " + cmp.Title) Console.WriteLine("Book Author: " + cmp.Author) Console.WriteLine("Book ISBN: " + cmp.Site.Name) End While End Sub End Class
//This code segment implements the IContainer interface. The code segment //containing the implementation of ISite and IComponent can be found in the documentation //for those interfaces. //Implement the LibraryContainer using the IContainer interface. class LibraryContainer : IContainer { private ArrayList m_bookList; public LibraryContainer() { m_bookList = new ArrayList(); } public virtual void Add(IComponent book) { //The book will be added without creation of the ISite object. m_bookList.Add(book); } public virtual void Add(IComponent book, string ISNDNNum) { for(int i =0; i < m_bookList.Count; ++i) { IComponent curObj = (IComponent)m_bookList[i]; if(curObj.Site != null) { if(curObj.Site.Name.Equals(ISNDNNum)) throw new SystemException("The ISBN number already exists in the container"); } } ISBNSite data = new ISBNSite(this, book); data.Name = ISNDNNum; book.Site = data; m_bookList.Add(book); } public virtual void Remove(IComponent book) { for(int i =0; i < m_bookList.Count; ++i) { if(book.Equals(m_bookList[i])) { m_bookList.RemoveAt(i); break; } } } public ComponentCollection Components { get { IComponent[] datalist = new BookComponent[m_bookList.Count]; m_bookList.CopyTo(datalist); return new ComponentCollection(datalist); } } public virtual void Dispose() { for(int i =0; i < m_bookList.Count; ++i) { IComponent curObj = (IComponent)m_bookList[i]; curObj.Dispose(); } m_bookList.Clear(); } static void Main(string[] args) { LibraryContainer cntrExmpl = new LibraryContainer(); try { BookComponent book1 = new BookComponent("Wizard's First Rule", "Terry Gooodkind"); cntrExmpl.Add(book1, "0812548051"); BookComponent book2 = new BookComponent("Stone of Tears", "Terry Gooodkind"); cntrExmpl.Add(book2, "0812548094"); BookComponent book3 = new BookComponent("Blood of the Fold", "Terry Gooodkind"); cntrExmpl.Add(book3, "0812551478"); BookComponent book4 = new BookComponent("The Soul of the Fire", "Terry Gooodkind"); //This will generate exception because the ISBN already exists in the container. cntrExmpl.Add(book4, "0812551478"); } catch(SystemException e) { Console.WriteLine("Error description: " + e.Message); } ComponentCollection datalist =cntrExmpl.Components; IEnumerator denum = datalist.GetEnumerator(); while(denum.MoveNext()) { BookComponent cmp = (BookComponent)denum.Current; Console.WriteLine("Book Title: " + cmp.Title); Console.WriteLine("Book Author: " + cmp.Author); Console.WriteLine("Book ISBN: " + cmp.Site.Name); } } }
// This code segment implements the IContainer interface. The code segment // containing the implementation of ISite and IComponent can be found in // the documentation for those interfaces. // Implement the LibraryContainer using the IContainer interface. class LibraryContainer implements IContainer { private ArrayList mBookList; public LibraryContainer() { mBookList = new ArrayList(); } //LibraryContainer public void Add(IComponent book) { // The book will be added without creation of the ISite object. mBookList.Add(book); } //Add public void Add(IComponent book, String isndNNum) throws SystemException { for (int i = 0; i < mBookList.get_Count(); ++i) { IComponent curObj = (IComponent)mBookList.get_Item(i); if (curObj.get_Site() != null) { if (curObj.get_Site().get_Name().Equals(isndNNum)) { throw new SystemException( "The ISBN number already exists in the container"); } } } ISBNSite data = new ISBNSite(this, book); data.set_Name(isndNNum); book.set_Site(data); mBookList.Add(book); } //Add public void Remove(IComponent book) { for (int i = 0; i < mBookList.get_Count(); ++i) { if (book.Equals(mBookList.get_Item(i))) { mBookList.RemoveAt(i); break; } } } //Remove /** @property */ public ComponentCollection get_Components() { IComponent dataList[] = new BookComponent[mBookList.get_Count()]; mBookList.CopyTo(dataList); return new ComponentCollection(dataList); } //get_Components public void Dispose() { for (int i = 0; i < mBookList.get_Count(); ++i) { IComponent curObj = (IComponent)mBookList.get_Item(i); curObj.Dispose(); } mBookList.Clear(); } //Dispose public static void main(String[] args) { LibraryContainer cntrExmpl = new LibraryContainer(); try { BookComponent book1 = new BookComponent("Wizard's First Rule", "Terry Gooodkind"); cntrExmpl.Add(book1, "0812548051"); BookComponent book2 = new BookComponent("Stone of Tears", "Terry Gooodkind"); cntrExmpl.Add(book2, "0812548094"); BookComponent book3 = new BookComponent("Blood of the Fold", "Terry Gooodkind"); cntrExmpl.Add(book3, "0812551478"); BookComponent book4 = new BookComponent("The Soul of the Fire", "Terry Gooodkind"); // This will generate exception because the ISBN already exists in // the container. cntrExmpl.Add(book4, "0812551478"); } catch (SystemException e) { Console.WriteLine("Error description: " + e.get_Message()); } ComponentCollection dataList = cntrExmpl.get_Components(); IEnumerator denum = dataList.GetEnumerator(); while (denum.MoveNext()) { BookComponent cmp = (BookComponent)denum.get_Current(); Console.WriteLine("Book Title: " + cmp.get_Title()); Console.WriteLine("Book Author: " + cmp.get_Author()); Console.WriteLine("Book ISBN: " + cmp.get_Site().get_Name()); } } //main } //LibraryContainer
Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。
参照
IContainer プロパティ
IContainer メソッド
IContainer メンバ
- IContainerのページへのリンク