FDO .NET API Reference

Feature Data Objects

mgFeatureSchemaCollection.h

Go to the documentation of this file.

/*
* Copyright (C) 2004-2006  Autodesk, Inc.
* 
* This library is free software; you can redistribute it and/or
* modify it under the terms of version 2.1 of the GNU Lesser
* General Public License as published by the Free Software Foundation.
* 
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
* 
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*
*/

#pragma once

#include "FDO\Xml\mgIXmlDeserializable.h"
#include "FDO\Xml\mgIXmlSerializable.h"

class FdoFeatureSchemaCollection;

BEGIN_NAMESPACE_OSGEO_FDO
public __gc class IDisposableCollection;
END_NAMESPACE_OSGEO_FDO

BEGIN_NAMESPACE_OSGEO_FDO_XML
public __gc class XmlFlags;
END_NAMESPACE_OSGEO_FDO_XML

BEGIN_NAMESPACE_OSGEO_FDO_COMMANDS_SCHEMA
public __gc class PhysicalSchemaMappingCollection;
END_NAMESPACE_OSGEO_FDO_COMMANDS_SCHEMA

BEGIN_NAMESPACE_OSGEO_FDO_SCHEMA
public __gc class FeatureSchema;
public __gc class SchemaElement;

/// \ingroup (OSGeoFDOSchema)
/// \brief
/// The FeatureSchemaCollection class represents a collection of FeatureSchema objects.
[System::Reflection::DefaultMemberAttribute("RealTypeItem")]
public __sealed __gc class FeatureSchemaCollection : public NAMESPACE_OSGEO_RUNTIME::Disposable, public System::Collections::IList, public NAMESPACE_OSGEO_FDO_XML::IXmlDeserializable, public NAMESPACE_OSGEO_FDO_XML::IXmlSerializable
{
/// \cond DOXYGEN-IGNORE
private:
    /// \brief
    /// A Nested class defined to provide enumeration of Dictionary elements
    ///
    /// Enumerators can be used to read the data in the collection, 
    /// but they cannot be used to modify the underlying collection.
    ///
    /// An enumerator remains valid as long as the collection remains unchanged. 
    /// If changes are made to the collection, such as adding, modifying, or deleting 
    /// elements, the enumerator is irrecoverably invalidated and the next call to 
    /// MoveNext or Reset throws an InvalidOperationException. If the collection is 
    /// modified between MoveNext and Current, Current returns the element that it is 
    /// set to, even if the enumerator is already invalidated.
    ///
    /// The enumerator does not have exclusive access to the collection; therefore, 
    /// enumerating through a collection is intrinsically not a thread-safe procedure. 
    /// Even when a collection is synchronized, other threads can still modify the 
    /// collection, which causes the enumerator to throw an exception. To guarantee 
    /// thread safety during enumeration, you can either lock the collection during 
    /// the entire enumeration or catch the exceptions resulting from changes made 
    /// by other threads.
    /// 
    __gc class Enumerator : public System::Collections::IEnumerator
    {
    private:
        FeatureSchemaCollection* m_pCol;
        System::Int32 m_nIdx;

    public:
        /// \brief
        /// Constructs a new Collection Enumerator
        /// 
        /// \param col 
        /// Input The collection to enumerate.
        /// 
        Enumerator(FeatureSchemaCollection* elements) : m_pCol(elements), m_nIdx(-1) 
        {

        }

        /// \brief
        /// Retrieves the current object at the enumerator location
        /// 
        /// \return
        /// Retuns the current object referenced by the enumerator
        /// 
        __property System::Object *get_Current();

        /// \brief
        /// Initially, the enumerator is positioned before the first object in the collection. 
        /// At this position, calling the Current property throws an exception. 
        /// Therefore, you must call the MoveNext method to advance the enumerator 
        /// to the first element of the collection before reading the value of Current.
        /// If MoveNext passes the end of the collection, the enumerator is positioned 
        /// after the last element in the collection and MoveNext returns false. 
        /// When the enumerator is at this position, subsequent calls to MoveNext also return false. 
        /// If the last call to MoveNext returned false, calling Current throws an exception. 
        /// To set Current to the first element of the collection again, you can call Reset 
        /// followed by MoveNext.
        /// 
        /// \return
        /// Retuns true if the Enumerator is able to move to a valid element
        /// otherwise false.
        /// 
        System::Boolean MoveNext();

        /// \brief
        /// Initially, the enumerator is positioned before the first element in the collection. 
        /// The Reset method brings the enumerator back to this position. 
        /// 
        System::Void Reset();
    };

public private:
    inline FdoFeatureSchemaCollection* GetImpObj();

private:
    // System::Collections::ICollection interface properties
    __property System::Object* System::Collections::ICollection::get_SyncRoot();
    __property System::Boolean System::Collections::ICollection::get_IsSynchronized();

    // System::Collections::ICollection interface methods
    System::Void System::Collections::ICollection::CopyTo(System::Array* array,System::Int32 index);

    // System::Collections::IList interface properties
    __property System::Boolean System::Collections::IList::get_IsFixedSize();
    __property System::Boolean System::Collections::IList::get_IsReadOnly();
    __property Object* System::Collections::IList::get_Item(System::Int32 index);
    __property System::Void  System::Collections::IList::set_Item(System::Int32 index, Object* value);

    // System::Collections::IList interface methods
    System::Int32 System::Collections::IList::Add(Object* value);
    System::Boolean System::Collections::IList::Contains(Object* value);
    System::Int32 System::Collections::IList::IndexOf(Object* value);
    System::Void System::Collections::IList::Insert(System::Int32 index, Object* value);
    System::Void System::Collections::IList::Remove(Object* value);

protected:
    System::Void ReleaseUnmanagedObject();
/// \endcond

public:
    /// \brief
    /// Constructs a FeatureSchemaCollection object
    /// 
    /// \param parent 
    /// Input A Pointer to the parent schema object of the collection
    /// 
    FeatureSchemaCollection(NAMESPACE_OSGEO_FDO_SCHEMA::SchemaElement* parent);

    /// \brief
    /// Constructs a FeatureSchemaCollection object based on an unmanaged instance of the object
    /// 
    /// \param unmanaged 
    /// Input A Pointer to the unmanaged object.
    /// 
    /// \param autoDelete 
    /// Input Indicates if the constructed object should be automatically deleted 
    /// once it no longer referenced.
    /// 
    FeatureSchemaCollection(System::IntPtr unmanaged, System::Boolean autoDelete) : NAMESPACE_OSGEO_RUNTIME::Disposable(unmanaged, autoDelete)
    {
    }

    /// \brief
    /// Gets the count of items in collection.
    /// 
    /// \return
    /// Returns the number of items in the collection.
    /// 
    __property System::Int32 get_Count(System::Void);

    /// \brief
    /// Gets an enumerator that can iterate through a collection.
    /// 
    /// \return
    /// Returns an enumerator on the dictionary.
    /// 
    __sealed System::Collections::IEnumerator* GetEnumerator(System::Void);

    /// \brief
    /// Removes the index-th FeatureSchema from this collection.
    /// 
    /// \param index 
    /// Input index of the element to remove.
    /// 
    System::Void RemoveAt(System::Int32 index);

    /// \brief
    /// Removes all elements from the collection.
    /// 
    System::Void  Clear();

    /// \brief
    /// Adds a FeatureSchema object into the collection.
    /// 
    /// \param value 
    /// Input the FeatureSchema object to add.
    /// 
    /// \return
    /// Returns the position into which the new element was inserted.
    /// 
    System::Int32 Add(FeatureSchema* value);

    /// \brief
    /// Determines the index of a specific FeatureSchema object.
    /// 
    /// \param value 
    /// Input the FeatureSchema object to locate in the collection.
    /// 
    /// \return
    /// The index of value if found in the collection; otherwise, -1.
    /// 
    System::Int32 IndexOf(FeatureSchema* value);

    /// \brief
    /// Determines the index of a specific FeatureSchema object.
    /// 
    /// \param name 
    /// Input the name of the FeatureSchema object to locate in the collection.
    /// 
    /// \return
    /// The index of value if found in the collection; otherwise, -1.
    /// 
    System::Int32 IndexOf(String* name);

    /// \brief
    /// Inserts a FeatureSchema object into the collection at the specified position.
    /// 
    /// \param index 
    /// Input the zero-based index at which value should be inserted.
    /// \param value 
    /// Input the FeatureSchema object to insert.
    /// 
    System::Void Insert(System::Int32 index, FeatureSchema* value);

    /// \brief
    /// Removes the first occurrence of a specific FeatureSchema object.
    /// 
    /// \param value 
    /// Input the FeatureSchema object to remove from the collection.
    /// 
    System::Void Remove(FeatureSchema* value);

    /// \brief
    /// Determines whether the collection contains a specific FeatureSchema object.
    /// 
    /// \param value 
    /// Input The FeatureSchema object to search in the collection.
    /// 
    /// \return
    /// Returns true if the value is found in the collection; otherwise, false.
    /// 
    System::Boolean Contains(FeatureSchema* value);

    /// \brief
    /// Determines whether the collection contains a specific FeatureSchema object.
    /// 
    /// \param name 
    /// Input The name of the FeatureSchema object to search in the collection.
    /// 
    /// \return
    /// Returns true if the value is found in the collection; otherwise, false.
    /// 
    System::Boolean Contains(String* name);

    /// \brief
    /// Copies the elements of the collection to an array.
    /// 
    /// \param array 
    /// Output the one-dimensional Array that is the destination of the elements copied from this collection.
    /// \param startAt 
    /// Input an integer that represents the index in array at which copying begins.
    /// 
    System::Void CopyTo(FeatureSchema* array[],System::Int32 startAt);

    /// \brief
    /// Gets the item in the collection at the specified index. 
    /// 
    /// \param index 
    /// The index of the item in the collection. The index is 0 based.
    /// 
    /// \return
    /// Returns an instance of a the collected item.
    /// Throws an instance of Exception if the index is out of range or an error occurs.
    /// 
    __property FeatureSchema* get_RealTypeItem(System::Int32 index);

    /// \brief
    /// Gets the item in the collection by name. 
    /// 
    /// \param index 
    /// The name of the item in the collection.
    /// 
    /// \return
    /// Returns an instance of a the collected item.
    /// 
    __property FeatureSchema* get_RealTypeItem(System::String* index);

    /// \brief
    /// Sets the value of the item at the specified index
    /// 
    /// \param index 
    /// Input index of the item to set.
    /// 
    /// \param value 
    /// Input the value of the item
    /// 
    __property System::Void  set_RealTypeItem(System::Int32 index, FeatureSchema* value);

    /// \brief
    /// Gets an item in the collection.
    /// 
    /// \param index 
    /// Input index of the item to retrieve.
    /// 
    /// \return
    /// Returns the item at the specified index
    /// 
    __property FeatureSchema* get_Item(System::Int32 index);

    /// \brief
    /// Sets the value of the item at the specified index
    /// 
    /// \param index 
    /// Input index of the item to set.
    /// 
    /// \param value 
    /// Input the value of the item
    /// 
    __property System::Void  set_Item(System::Int32 index, FeatureSchema* value);

    /*
        Additional interfaces
    */

    /// \brief
    /// Gets the stylesheet for converting a Feature Schema collection from 
    /// internal to external XML format. The internal format is very similar to 
    /// the Feature Schema class hierarchy. The external format is OGC GML.
    /// 
    /// \return
    /// Returns the stylesheet
    /// 
    NAMESPACE_OSGEO_COMMON_XML::XmlReader* GetFromInternalStylesheet();

    /// \brief
    /// Gets the stylesheet for converting a Feature Schema collection from 
    /// external to internal XML format. The internal format is very similar to 
    /// the Feature Schema class hierarchy. The external format is OGC GML.
    /// 
    /// \return
    /// Returns the stylesheet
    /// 
    NAMESPACE_OSGEO_COMMON_XML::XmlReader* GetFromExternalStylesheet();

    /// \brief
    /// Takes a qualified or unqualified class name and return a collection of class definitions
    /// that match the class name. For qualified name, the collection contains at most one class definition.
    /// 
    /// \param className 
    /// The class name
    /// 
    /// \return
    /// Returns a collection of classes
    /// 
    NAMESPACE_OSGEO_FDO::IDisposableCollection* FindClass(System::String* className);

    /// \brief
    /// Gets a Schema Mapping Collection
    /// that describes the mappings between the elements in the GML Schema that were read
    /// and the FDO Feature Schema Elements that were created. This function returns the 
    /// Schema Mapping Collection generated by the last call to ReadXml(). The collection
    /// contains one XmlSchemaMapping per schema that was read.
    /// 
    /// \return
    /// Returns PhysicalSchemaMappingCollection*. Returns NULL if ReadXml() has not been
    /// called on this object.
    /// 
    __property NAMESPACE_OSGEO_FDO_COMMANDS_SCHEMA::PhysicalSchemaMappingCollection* get_XmlSchemaMappings();

    /*
        IXmlSaxHandler Implemenations
    */

    /// \brief
    /// Default Sax callback that is called when the XmlReader 
    /// starts reading an XML document. Does nothing.
    /// 
    /// \param context 
    /// Input caller specified contextual information
    /// 
    /// \return
    /// Returns the SAX Handler for the document's root element. If NULL then 
    /// this SAX handler will handle the root element
    /// 
    NAMESPACE_OSGEO_COMMON_XML::IXmlSaxHandler* XmlStartDocument(NAMESPACE_OSGEO_COMMON_XML::XmlSaxContext* context);

    /// \brief
    /// Default Sax callback that is called when the XmlReader 
    /// finishes reading an XML document. Does nothing
    /// 
    /// \param context 
    /// Input caller specified contextual information
    /// 
    System::Void XmlEndDocument(NAMESPACE_OSGEO_COMMON_XML::XmlSaxContext* context);

    /// \brief
    /// Default Sax callback that is called when the XmlReader 
    /// reads the start tag for an XML element in the document. Does nothing.
    /// 
    /// \param context 
    /// Input caller specified contextual information
    /// \param resourceLocation 
    /// Input the element's Universal Resource Indicator
    /// \param name 
    /// Input the unqualified element name (doesn't include namespace)
    /// \param qualifiedName 
    /// Input the qualified element name (includes namespace)
    /// \param attributes 
    /// Input the attributes for the element.
    /// 
    /// \return
    /// Returns the SAX Handler for the element's sub-elements. If NULL then 
    /// this SAX handler will handle the sub-elements
    /// 
    NAMESPACE_OSGEO_COMMON_XML::IXmlSaxHandler* XmlStartElement(NAMESPACE_OSGEO_COMMON_XML::XmlSaxContext* context, String* resourceLocation, String* name, String* qualifiedName, NAMESPACE_OSGEO_COMMON_XML::XmlAttributeCollection* attributes);

    /// \brief
    /// Default Sax callback that is called when the XmlReader 
    /// reads the end tag for an XML element in the document. Does nothing.
    /// 
    /// \param context 
    /// Input caller specified contextual information
    /// \param resourceLocation 
    /// Input the element's Universal Resource Indicator
    /// \param name 
    /// Input the unqualified element name (doesn't include namespace)
    /// \param qualifiedName 
    /// Input the qualified element name (includes namespace)
    /// 
    /// \return
    /// Returning true causes the current parse to stop. Returning false
    /// cause the parse to continue. Return value is ignored if the current parse
    /// is not an incremental parse ( see XmlReader::Parse())
    /// 
    System::Boolean XmlEndElement(NAMESPACE_OSGEO_COMMON_XML::XmlSaxContext* context, System::String* resourceLocation, System::String* name, System::String* qualifiedName);

    /// \brief
    /// Default Sax callback that is called when the XmlReader 
    /// reads a chunk of simple content for the current element. Does nothing by default.
    /// This function may be called multiple times for the same element, if the 
    /// the content is long. Applications must not make any assumptions about the
    /// chunk size or number of chunks for each element
    /// 
    /// \param context 
    /// Input caller specified contextual information
    /// \param characters 
    /// Input the next chunk of simple content
    /// 
    System::Void XmlCharacters(NAMESPACE_OSGEO_COMMON_XML::XmlSaxContext* context, System::String* characters);

    /*
        IXmlDeserializable Implemenations
    */

    /// \brief
    /// Reads from an XML document in a file.
    /// 
    /// \param fileName 
    /// Input the file name. Must consist of an XML document.
    /// 
    System::Void ReadXml(System::String* fileName);

    /// \brief
    /// Reads from an XML document in a file.
    /// 
    /// \param fileName 
    /// Input the file name. Must consist of an XML document.
    /// \param flags 
    /// Input controls the reading of the elements from the document.
    /// If NULL then the default flags are used (see NAMESPACE_OSGEO_FDO_XML::XmlFlags::Create())
    /// 
    System::Void ReadXml(System::String* fileName, NAMESPACE_OSGEO_FDO_XML::XmlFlags* flags);

    /// \brief
    /// Reads an XML document from an XML reader.
    /// 
    /// \param xmlReader 
    /// Input the XML reader.
    /// 
    System::Void ReadXml(NAMESPACE_OSGEO_COMMON_XML::XmlReader* xmlReader);

    /// \brief
    /// Reads an XML document from an XML reader.
    /// 
    /// \param xmlReader 
    /// Input the XML reader.
    /// \param flags 
    /// Input controls the reading of the elements from the document. 
    /// If NULL then the default flags are used (see NAMESPACE_OSGEO_FDO_XML::XmlFlags::Create())
    /// 
    System::Void ReadXml(NAMESPACE_OSGEO_COMMON_XML::XmlReader* xmlReader, NAMESPACE_OSGEO_FDO_XML::XmlFlags* flags);

    /// \brief
    /// Reads an XML document from a text reader.
    /// 
    /// \param textReader 
    /// Input the text reader. Must be positioned at the
    /// start of an XML document.
    /// 
    System::Void ReadXml(NAMESPACE_OSGEO_COMMON_IO::IoTextReader* textReader);

    /// \brief
    /// Reads an XML document from a text reader.
    /// 
    /// \param textReader 
    /// Input the text reader. Must be positioned at the
    /// start of an XML document.
    /// \param flags 
    /// Input controls the reading of the elements from the document. 
    /// If NULL then the default flags are used (see NAMESPACE_OSGEO_FDO_XML::XmlFlags::Create())
    /// 
    System::Void ReadXml(NAMESPACE_OSGEO_COMMON_IO::IoTextReader* textReader, NAMESPACE_OSGEO_FDO_XML::XmlFlags* flags);

    /// \brief
    /// Reads an XML document from a stream.
    /// 
    /// \param stream 
    /// Input the stream. Must be positioned at the
    /// start of an XML document.
    /// 
    System::Void ReadXml(NAMESPACE_OSGEO_COMMON_IO::IoStream* stream);

    /// \brief
    /// Reads an XML document from a stream.
    /// 
    /// \param stream 
    /// Input the stream. Must be positioned at the
    /// start of an XML document.
    /// \param flags 
    /// Input controls the reading of the elements from the document. 
    /// If NULL then the default flags are used (see NAMESPACE_OSGEO_FDO_XML::XmlFlags::Create())
    /// 
    System::Void ReadXml(NAMESPACE_OSGEO_COMMON_IO::IoStream* stream, NAMESPACE_OSGEO_FDO_XML::XmlFlags* flags);

    /// \brief
    /// Gets the XML Flags that were passed to the ReadXml() 
    /// function that is currently being executed. This function would 
    /// typically be called by the XmlSaxHandler callbacks.
    /// 
    /// \return
    /// Returns the XML Flags
    /// 
    NAMESPACE_OSGEO_FDO_XML::XmlFlags* GetDeserializationFlags();

    /// \brief
    /// Gets the current XML Reader. This function would 
    /// typically be called by the XmlSaxHandler callbacks when 
    /// ReadXml() is being invoked. When ReadXml() reads from a file, stream,
    /// or text reader, a wrapping XML reader is automatically created.
    /// 
    /// \return
    /// Returns the XML reader
    /// 
    NAMESPACE_OSGEO_COMMON_XML::XmlReader* GetXmlReader();

    /// \brief
    /// Gets the stylesheet for converting the XML document from 
    /// external to internal format. When classes derived from XmlDeserializable
    /// define an internal format, they must override this function to return a
    /// stylesheet that does the conversion.
    /// 
    /// \return
    /// Returns NULL by default (no internal format defined)
    /// 
    /// It has beed implemented in Additional Interfaces.
    // NAMESPACE_OSGEO_COMMON_XML::XmlReader* GetFromExternalStylesheet();

    /// \brief
    /// Gets the SAX context to pass to the XmlSaxHandler callbacks.
    /// Classes derived from XmlDeserializable can override this function to 
    /// specify a SAX context with class-specific information.
    /// 
    /// \return
    /// Returns NULL by default, the default NAMESPACE_OSGEO_COMMON_XML::XmlSaxContext is used.
    /// The default provides basic error handling functionality.
    /// 
    NAMESPACE_OSGEO_COMMON_XML::XmlSaxContext* GetSaxContext();

    /*
        IXmlSerializable Implemenations
    */

    /// \brief
    /// Writes this object to a file. A complete XML document,
    /// containing this object, is written.
    /// 
    /// \param fileName 
    /// Input the file name.
    /// 
    System::Void WriteXml(String* fileName);

    /// \brief
    /// Writes this object to a file. A complete XML document,
    /// containing this object, is written.
    /// 
    /// \param fileName 
    /// Input the file name.
    /// \param flags 
    /// Input controls the writing of the elements to the document.
    /// If NULL then the default flags are used (see XmlFlags::Create())
    /// 
    System::Void WriteXml(String* fileName, NAMESPACE_OSGEO_FDO_XML::XmlFlags* flags);

    /// \brief
    /// Writes to an XML writer. This object is appended to the XML document
    /// being written. Unlike the other WriteXml() functions it is not necessarily 
    /// the only object in its document.
    /// 
    /// \param xmlWriter 
    /// Input the XML writer. When this function completes, the
    /// XML writer's current position will be just after this object.
    /// 
    System::Void WriteXml(NAMESPACE_OSGEO_COMMON_XML::XmlWriter* xmlWriter);

    /// \brief
    /// Writes to an XML writer. This object is appended to the XML document
    /// being written. Unlike the other WriteXml() functions it is not necessarily 
    /// the only object in its document.
    /// 
    /// \param xmlWriter 
    /// Input the XML writer. When this function completes, the
    /// XML writer's current position will be just after this object.
    /// \param flags 
    /// Input controls the writing of the elements to the writer.
    /// If NULL then the default flags are used (see XmlFlags::Create())
    /// 
    System::Void WriteXml(NAMESPACE_OSGEO_COMMON_XML::XmlWriter* xmlWriter, NAMESPACE_OSGEO_FDO_XML::XmlFlags* flags);

    /// \brief
    /// Writes to a text writer. A complete XML document,
    /// containing this object, is written.
    /// 
    /// \param textWriter 
    /// Input the text writer.When this function completes, the
    /// text writer's current position will be just after this object.
    /// 
    System::Void WriteXml(NAMESPACE_OSGEO_COMMON_IO::IoTextWriter* textWriter);

    /// \brief
    /// Writes to a text writer. A complete XML document,
    /// containing this object, is written.
    /// 
    /// \param textWriter 
    /// Input the text writer.When this function completes, the
    /// text writer's current position will be just after this object.
    /// \param flags 
    /// Input controls the writing of the elements to the writer.
    /// If NULL then the default flags are used (see XmlFlags::Create())
    /// 
    System::Void WriteXml(NAMESPACE_OSGEO_COMMON_IO::IoTextWriter* textWriter, NAMESPACE_OSGEO_FDO_XML::XmlFlags* flags);

    /// \brief
    /// Writes to a stream. A complete XML document,
    /// containing this object, is written.
    /// 
    /// \param stream 
    /// Input the stream. When this function completes, the
    /// stream's current position will be just after this object.
    /// 
    System::Void WriteXml(NAMESPACE_OSGEO_COMMON_IO::IoStream* stream);

    /// \brief
    /// Writes to a stream. A complete XML document,
    /// containing this object, is written.
    /// 
    /// \param stream 
    /// Input the stream. When this function completes, the
    /// stream's current position will be just after this object.
    /// \param flags 
    /// Input controls the writing of the elements to the stream.
    /// If NULL then the default flags are used (see XmlFlags::Create())
    /// 
    System::Void WriteXml(NAMESPACE_OSGEO_COMMON_IO::IoStream* stream, NAMESPACE_OSGEO_FDO_XML::XmlFlags* flags);
};

END_NAMESPACE_OSGEO_FDO_SCHEMA

---

Comments or suggestions? Send us feedback.