delphi tclientDataset XML 파일의 메타 데이터 섹션을 설명하는 부분 XSD가있는 사람이 있습니까?

Question

행 요소에는 내용에 따라 이름이있는 속성이 있기 때문에 XSD 스키마가있는 tclientDataset의 XML을 완전히 설명 할 수는 없습니다.

그러나 그러한 XML의 메타 데이터 섹션은 있어야합니다.

그래서 : delphi tclientDatasets로 저장할 수있는 XML의 메타 데이터 부분을 설명하는 (부분) XSD를 가진 사람이 있습니까?

문안 인사.

추신:

XML-> XSD 변환 도구/사이트에 대한 포인터에 감사드립니다. 나는 또한 직접 그렇게했지만 XSD를 적절한 방식으로 생성하는 데 적절한 방식으로 (즉, 모든 가능성을 다루는) 모든 가능성 (왕복, 행 스테이트 등)을 다루는 입력 XML이 필요합니다. 나는 그런 식으로 괜찮은 XSD를 생각해 내고 여기에 게시 할 것입니다.

Answer 1

편집하다:
XSD를 두 부분으로 나누고이 파일을 사용하여 더 완전하게 만들었습니다. Delphi XE: dsconst.h, dspickle.h, dsxml.h.
추가 된 경우 PM 또는 의견을 제시하십시오.

아래 XSD 파일은 지금까지 합리적으로 작동하는 것 같습니다. 이로 유효한 tclientDataset XML이있는 경우 XML을 이메일로 보내주십시오 (Google 또는 내 메일 주소에 대한 아래에 의견을 넣으십시오).

먼저 파일 CDS.xsd, 파일이 포함되어 있습니다 CDS_METADATA_FIELDS_include.xsd 더 나아가.
tclientDataset XML 문서의 기본 구조를 정의합니다. DATAPACKET, 포함 METADATA 그리고 ROWDATA, 어디 METADATA 포함 FIELDS 그리고 PARAMS, 그리고 ROWDATA 포함 ROW 집단:

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xs:include schemaLocation="CDS_METADATA_FIELDS_include.xsd"/>
    <!-- DATAPACKET/datapacket -->
    <xs:element name="DATAPACKET" type="datapacket"/>
    <xs:complexType name="datapacket">
        <xs:sequence>
            <xs:element ref="METADATA"/>
            <xs:element ref="ROWDATA"/>
        </xs:sequence>
        <xs:attribute name="Version" type="xs:NMTOKEN" use="required"/>
    </xs:complexType>
    <!-- METADATA/metadata -->
    <xs:element name="METADATA" type="metadata"/>
    <xs:complexType name="metadata">
        <xs:sequence>
            <xs:element ref="FIELDS"/>
            <xs:element ref="PARAMS"/>
        </xs:sequence>
    </xs:complexType>
    <!-- PARAMS/params -->
    <xs:element name="PARAMS" type="params"/>
    <xs:complexType name="params">
        <xs:attribute name="MD_FIELDLINKS" type="xs:string" use="optional"/>
        <xs:attribute name="DEFAULT_ORDER" type="xs:positiveInteger"/>
        <xs:attribute name="LCID" type="xs:positiveInteger"/>
        <xs:attribute name="CHANGE_LOG" type="xs:string" use="optional"/>
        <xs:attribute name="PRIMARY_KEY" type="xs:positiveInteger" use="optional"/>
    </xs:complexType>
    <!-- ROWDATA/rowdata -->
    <xs:element name="ROWDATA" type="rowdata"/>
    <xs:complexType name="rowdata">
        <xs:sequence>
            <xs:element ref="ROW" minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>
    <!-- ROW/row -->
    <xs:element name="ROW" type="row"/>
    <xs:complexType name="row">
        <xs:sequence>
            <xs:any namespace="##any" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
        <xs:attribute name="RowState" type="xs:NMTOKEN" use="optional"/>
        <xs:anyAttribute namespace="##any" processContents="lax"/>
    </xs:complexType>
</xs:schema>

주목하십시오 ROW 요소는 동적으로 정의 된 속성 이름을 포함하므로 매우 느슨하게 입력됩니다.

그런 다음 파일 CDS_METADATA_FIELDS_include.xsd 여기에는 FIELDS 그리고 PARAMS 집단.
아래 주석에 언급 된 키워드가 포함 된 CDS XML 파일을 찾지 못했기 때문에 아직 완전히 완성되지 않았습니다.

<?xml version="1.0" encoding="UTF-8"?>
<!-- include portion of the METADATA FIELDS that CDS uses -->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <!-- FIELDS/fields -->
  <xs:element name="FIELDS" type="fields"/>
  <xs:complexType name="fields">
    <xs:sequence>
      <xs:element ref="FIELD" maxOccurs="unbounded"/>
    </xs:sequence>
  </xs:complexType>
  <!-- FIELD/field -->
  <xs:element name="FIELD" type="field"/>
  <xs:complexType name="field">
    <xs:sequence>
      <xs:element ref="PARAM" minOccurs="0"/>
      <!-- FIELDS is for nested datasets -->
      <xs:element ref="FIELDS" minOccurs="0" maxOccurs="unbounded"/>
      <!-- PARAMS is for nested datasets -->
      <xs:element name="PARAMS" type="fieldParams" minOccurs="0" maxOccurs="unbounded"/>
    </xs:sequence>
    <!-- fieldname is used when the DBMS allows for non-identifier characters (like spaces) in fieldnames -->
    <xs:attribute name="fieldname" use="optional" type="xs:string"/>
    <xs:attribute name="fieldtype" use="required" type="FIELDTYPE"/>
    <xs:attribute name="SUBTYPE" use="optional" type="subtype"/>
    <!-- DECIMALS is for BCD -->
    <xs:attribute name="DECIMALS" type="xs:positiveInteger" use="optional"/>
    <!-- WIDTH is for Character, BCD, Bytes and Unicode -->
    <xs:attribute name="WIDTH" type="xs:positiveInteger" use="optional"/>
    <xs:attribute name="attrname" type="xs:Name" use="required"/>
<!-- need to incorporate these; probably as attributes as FIELD :
#define szUNIQUE_KEY          "UNIQUE_KEY"
#define szSERVER_COL          "SERVER_COL"
#define szCONSTRAINTS         "CONSTRAINTS"
#define szDATASET_CONTEXT     "DATASET_CONTEXT"
#define szDATASET_DELTA       "DATASET_DELTA"
#define szREADONLY            "READONLY"
#define szBDEDOMX             "BDEDOMAIN_X"
#define szBDERECX             "BDERECORD_X"
#define szBDEDEFX             "BDEDEFAULT_X"
#define szAUTOINCVALUE        "AUTOINCVALUE"
#define szELEMENTS            "ELEMENTS"
#define szTABLENAME           "TABLENAME"
#define szTYPENAME            "TYPENAME"
#define szUPDATEMODE          "UPDATEMODE"
#define szMD_SEMANTICS        "MD_SEMANTICS"
#define szCALCULATED          "CALCULATED"
#define szFIELDNAME          "FIELDNAME"
-->
  </xs:complexType>
  <!-- fieldParams -->
  <xs:complexType name="fieldParams">
    <xs:attribute name="DEFAULT_ORDER" type="xs:positiveInteger"/>
    <xs:attribute name="PRIMARY_KEY" type="xs:positiveInteger"/>
    <xs:attribute name="LCID" type="xs:positiveInteger"/>
  </xs:complexType>
  <!-- FIELDTYPE -->
  <xs:simpleType name="FIELDTYPE">
    <xs:restriction base="xs:Name">
      <!-- observed in real life CDS XML: -->
      <xs:enumeration value="byte"/>
      <!-- from Delphi XE file dsxml.h: -->
      <xs:enumeration value="i1"/>
      <xs:enumeration value="i2"/>
      <xs:enumeration value="i4"/>
      <xs:enumeration value="i8"/>
      <xs:enumeration value="ui1"/>
      <xs:enumeration value="ui2"/>
      <xs:enumeration value="ui4"/>
      <xs:enumeration value="ui8"/>
      <xs:enumeration value="r4"/>
      <xs:enumeration value="r8"/>
      <xs:enumeration value="r10"/>
<!-- szXMLFloat/szXMLNumber <xs:enumeration value="r8"/> -->
      <xs:enumeration value="fixed"/>
      <xs:enumeration value="fixedFMT"/>
      <xs:enumeration value="boolean"/>
      <xs:enumeration value="date"/>
      <xs:enumeration value="dateTime"/>
      <xs:enumeration value="time"/>
      <xs:enumeration value="array"/>
      <xs:enumeration value="struct"/>
      <xs:enumeration value="nested"/>
      <xs:enumeration value="string.uni"/>
      <xs:enumeration value="string"/>
      <xs:enumeration value="bin.hex"/>
      <xs:enumeration value="IntArray"/>
      <xs:enumeration value="UIntArray"/>
      <xs:enumeration value="SQLdateTime"/>
      <xs:enumeration value="SQLdateTimeOffset"/>
    </xs:restriction>
  </xs:simpleType>
  <!-- subtype -->
  <xs:simpleType name="subtype">
    <xs:restriction base="xs:Name">
      <xs:enumeration value="Text"/>
      <xs:enumeration value="Binary"/>
      <xs:enumeration value="Formatted"/>
      <xs:enumeration value="Ole"/>
      <xs:enumeration value="Graphics"/>
      <xs:enumeration value="dBASEOle"/>
      <xs:enumeration value="TypedBinary"/>
      <xs:enumeration value="Money"/>
      <xs:enumeration value="Autoinc"/>
      <xs:enumeration value="AccessOle"/>
      <xs:enumeration value="HMemo"/>
      <xs:enumeration value="HBinary"/>
      <xs:enumeration value="ADTNestedTable"/>
      <xs:enumeration value="FixedChar"/>
      <xs:enumeration value="Reference"/>
      <xs:enumeration value="BFile"/>
      <xs:enumeration value="ADTDate"/>
      <xs:enumeration value="Guid"/>
      <xs:enumeration value="WideText"/>
      <!-- Binary is required for fieldtype="bin.hex" -->
      <!-- FixedChar is required for fieldtype="string" when the field is CHAR (but not NCHAR) -->
      <!-- Guid is required for fieldtype="string" when the field is GUID -->
      <!-- Text is required for fieldtype="bin.hex" when the underlying field is TEXT or NTEXT (memo?) -->
      <!-- Money is required for fieldtype="float" when the underlying field is CURRENCY -->
    </xs:restriction>
  </xs:simpleType>
  <!-- PARAM/param -->
  <xs:element name="PARAM" type="param"/>
  <xs:complexType name="param">
    <xs:attribute name="Name" type="paramName" use="required"/>
    <!-- two forms of Value are possible; xs:Name is for ORIGIN; xs:postiveInteger is for PROVFLAGS (in combination with Type)
        <xs:attribute name="Value" type="xs:Name" use="required"/>
        <xs:attribute name="Value" type="xs:postiveInteger" use="required"/>
-->
    <xs:attribute name="Value" type="xs:string" use="required"/>
    <xs:attribute name="Type" type="FIELDTYPE" use="optional"/>
    <xs:attribute name="Roundtrip" type="xs:Name" use="required" fixed="True"/>
  </xs:complexType>
  <!-- paramName -->
  <xs:simpleType name="paramName">
    <xs:restriction base="xs:Name">
      <xs:enumeration value="ORIGIN"/>
      <xs:enumeration value="PROVFLAGS"/>
    </xs:restriction>
  </xs:simpleType>
</xs:schema>

문안 인사.

Answer 2

글쎄, 나도 찾을 수 없어서 이 웹 사이트 ClientDataset XML 파일을 기반 으로이 스키마를 생성합니다.

<?xml version="1.0" encoding="UTF-8" ?>

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="DATAPACKET">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="METADATA" />
        <xs:element ref="ROWDATA" />
      </xs:sequence>
      <xs:attribute name="Version" type="xs:NMTOKEN" use="required" />
    </xs:complexType>
  </xs:element>

  <xs:element name="FIELD">
    <xs:complexType>
      <xs:attribute name="fieldtype" type="xs:NMTOKEN" use="required" />
      <xs:attribute name="WIDTH" type="xs:NMTOKEN" use="optional" />
      <xs:attribute name="attrname" type="xs:NMTOKEN" use="required" />
      <xs:attribute name="required" type="xs:NMTOKEN" use="optional" />
    </xs:complexType>
  </xs:element>

  <xs:element name="FIELDS">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="FIELD" maxOccurs="unbounded" />
      </xs:sequence>
    </xs:complexType>
  </xs:element>

  <xs:element name="METADATA">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="FIELDS" />
        <xs:element ref="PARAMS" />
      </xs:sequence>
    </xs:complexType>
  </xs:element>

  <xs:element name="PARAMS">
    <xs:complexType>
      <xs:attribute name="CHANGE_LOG" type="xs:string" use="required" />
    </xs:complexType>
  </xs:element>

  <xs:element name="ROW">
    <xs:complexType>
    </xs:complexType>
  </xs:element>

  <xs:element name="ROWDATA">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="ROW" maxOccurs="unbounded" />
      </xs:sequence>
    </xs:complexType>
  </xs:element>

</xs:schema>

Answer 3

나는 델파이의 총 초보자이지만 XML 형식으로 tclientDataset을 구문 분석해야했습니다. 또한 필드 유형에 가능한 모든 값 목록이 필요했습니다. 델파이 소스를 파고이 목록을 생각해 냈습니다.

스키마에 필드 유형을 포함하려면 여기에 나열된 모든 유형을 포함시켜야합니다.

<xs:enumeration value="string" />
<xs:enumeration value="id" />
<xs:enumeration value="idref" />
<xs:enumeration value="idrefs" />
<xs:enumeration value="entity" />
<xs:enumeration value="entities" />
<xs:enumeration value="nmtoken" />
<xs:enumeration value="nmtokens" />
<xs:enumeration value="number" />
<xs:enumeration value="int" />
<xs:enumeration value="enumeration" />
<xs:enumeration value="notation" />
<xs:enumeration value="fixed" />
<xs:enumeration value="boolean" />
<xs:enumeration value="dateTime" />
<xs:enumeration value="dateTime.tz" />
<xs:enumeration value="date" />
<xs:enumeration value="time" />
<xs:enumeration value="time.tz" />
<xs:enumeration value="i1" />
<xs:enumeration value="byte" />
<xs:enumeration value="i2" />
<xs:enumeration value="i4" />
<xs:enumeration value="i8" />
<xs:enumeration value="ui1" />
<xs:enumeration value="ui2" />
<xs:enumeration value="ui4" />
<xs:enumeration value="ui8" />
<xs:enumeration value="r4" />
<xs:enumeration value="r8" />
<xs:enumeration value="float" />
<xs:enumeration value="char" />
<xs:enumeration value="uuid" />
<xs:enumeration value="bin.hex" />
<xs:enumeration value="bin.base64" />

이 스키마를 정의하는 좋은 일을 해주셔서 감사합니다. 이것은 많은 도움이됩니다.