XmlSchemaPatternFacet クラスとは何？わかりやすく解説 Weblio辞書

.NET Framework クラスライブラリリファレンス

索引トップ用語の索引ランキング

XmlSchemaPatternFacet クラス

W3C (World Wide Web Consortium) で指定された XML スキーマの pattern 要素を表します。このクラスを使用すると、simpleType 要素に対して入力できる値に制限を設定できます。

名前空間: System.Xml.Schema
アセンブリ: System.Xml (system.xml.dll 内)
構文

Visual Basic (宣言)

Public Class XmlSchemaPatternFacet
    Inherits XmlSchemaFacet

Visual Basic (使用法)

Dim instance As XmlSchemaPatternFacet

public class XmlSchemaPatternFacet : XmlSchemaFacet

C++

public ref class XmlSchemaPatternFacet : public
 XmlSchemaFacet

public class XmlSchemaPatternFacet extends
 XmlSchemaFacet

JScript

public class XmlSchemaPatternFacet extends
 XmlSchemaFacet

使用例

XmlSchemaPatternFacet クラスを使用する例を次に示します。

Visual Basic

Imports System
Imports System.Xml
Imports System.Xml.Schema

Class XMLSchemaExamples
    Public Shared Sub Main()

        Dim schema As New
 XmlSchema()

        ' <xs:simpleType name="ZipCodeType">
        Dim ZipCodeType As New
 XmlSchemaSimpleType()
        ZipCodeType.Name = "ZipCodeType"

        ' <xs:restriction base="xs:string">
        Dim restriction As New
 XmlSchemaSimpleTypeRestriction()
        restriction.BaseTypeName = New XmlQualifiedName("string",
 "http://www.w3.org/2001/XMLSchema")

        ' <xs:pattern value="[0-9]{5}(-[0-9]{4})?"/>
        Dim pattern As New
 XmlSchemaPatternFacet()
        pattern.Value = "[0-9]{5}(-[0-9]{4})?"
        restriction.Facets.Add(pattern)

        ZipCodeType.Content = restriction

        schema.Items.Add(ZipCodeType)

        ' <xs:element name="Address">
        Dim element As New
 XmlSchemaElement()
        element.Name = "Address"

        ' <xs:complexType>
        Dim complexType As New
 XmlSchemaComplexType()

        ' <xs:attribute name="ZipCode" type="ZipCodeType"/>
        Dim ZipCodeAttribute As New
 XmlSchemaAttribute()
        ZipCodeAttribute.Name = "ZipCode"
        ZipCodeAttribute.SchemaTypeName = New XmlQualifiedName("ZipCodeType",
 "")
        complexType.Attributes.Add(ZipCodeAttribute)

        element.SchemaType = complexType

        schema.Items.Add(element)

        Dim schemaSet As New
 XmlSchemaSet()
        AddHandler schemaSet.ValidationEventHandler, AddressOf
 ValidationCallbackOne

        schemaSet.Add(schema)
        schemaSet.Compile()

        Dim compiledSchema As XmlSchema = Nothing

        For Each schema1 As
 XmlSchema In schemaSet.Schemas()
            compiledSchema = schema1
        Next

        Dim nsmgr As New
 XmlNamespaceManager(New NameTable())
        nsmgr.AddNamespace("xs", "http://www.w3.org/2001/XMLSchema")
        compiledSchema.Write(Console.Out, nsmgr)

    End Sub

    Public Shared Sub ValidationCallbackOne(ByVal
 sender As Object, ByVal
 args As ValidationEventArgs)
        Console.WriteLine(args.Message)
    End Sub

End Class

using System;
using System.Xml;
using System.Xml.Schema;

class XMLSchemaExamples
{
    public static void Main()
    {

        XmlSchema schema = new XmlSchema();

        // <xs:simpleType name="ZipCodeType">
        XmlSchemaSimpleType ZipCodeType = new XmlSchemaSimpleType();
        ZipCodeType.Name = "ZipCodeType";

        // <xs:restriction base="xs:string">
        XmlSchemaSimpleTypeRestriction restriction = new XmlSchemaSimpleTypeRestriction();
        restriction.BaseTypeName = new XmlQualifiedName("string",
 "http://www.w3.org/2001/XMLSchema");

        // <xs:pattern value="[0-9]{5}(-[0-9]{4})?"/>
        XmlSchemaPatternFacet pattern = new XmlSchemaPatternFacet();
        pattern.Value = "[0-9]{5}(-[0-9]{4})?";
        restriction.Facets.Add(pattern);

        ZipCodeType.Content = restriction;

        schema.Items.Add(ZipCodeType);

        // <xs:element name="Address">
        XmlSchemaElement element = new XmlSchemaElement();
        element.Name = "Address";

        // <xs:complexType>
        XmlSchemaComplexType complexType = new XmlSchemaComplexType();

        // <xs:attribute name="ZipCode" type="ZipCodeType"/>
        XmlSchemaAttribute ZipCodeAttribute = new XmlSchemaAttribute();
        ZipCodeAttribute.Name = "ZipCode";
        ZipCodeAttribute.SchemaTypeName = new XmlQualifiedName("ZipCodeType",
 "");
        complexType.Attributes.Add(ZipCodeAttribute);

        element.SchemaType = complexType;

        schema.Items.Add(element);

        XmlSchemaSet schemaSet = new XmlSchemaSet();
        schemaSet.ValidationEventHandler += new ValidationEventHandler(ValidationCallbackOne);
        schemaSet.Add(schema);
        schemaSet.Compile();

        XmlSchema compiledSchema = null;

        foreach (XmlSchema schema1 in schemaSet.Schemas())
        {
            compiledSchema = schema1;
        }

        XmlNamespaceManager nsmgr = new XmlNamespaceManager(new
 NameTable());
        nsmgr.AddNamespace("xs", "http://www.w3.org/2001/XMLSchema");
        compiledSchema.Write(Console.Out, nsmgr);
    }

    public static void ValidationCallbackOne(object
 sender, ValidationEventArgs args)
    {
        Console.WriteLine(args.Message);
    }
}

前述のコード例に対して生成される XML ファイルを次に示します。

<?xml version="1.0" encoding="IBM437"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">

    <xs:simpleType name="ZipCodeType">
        <xs:restriction base="xs:string">
            <xs:pattern value="[0-9]{5}(-[0-9]{4})?"/>
        </xs:restriction>
    </xs:simpleType>

    <xs:element name="Address">
        <xs:complexType>
            <xs:attribute name="ZipCode"
 type="ZipCodeType"/>
        </xs:complexType>
    </xs:element>
    
</xs:schema>

継承階層

System.Object
   System.Xml.Schema.XmlSchemaObject
     System.Xml.Schema.XmlSchemaAnnotated
       System.Xml.Schema.XmlSchemaFacet
        System.Xml.Schema.XmlSchemaPatternFacet

スレッドセーフ

この型の public static (Visual Basic では Shared) メンバはすべて、スレッドセーフです。インスタンスメンバの場合は、スレッドセーフであるとは限りません。

プラットフォーム

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