IOracleCustomType Interface

IOracleCustomType is an interface for converting between a Custom Type and an Oracle Object or Collection Type.

Declaration

// C#
public interface IOracleCustomType

Thread Safety

All public static methods are thread-safe, although instance methods do not guarantee thread safety.

Requirements

Namespace: Oracle.DataAccess.Types

Assembly: Oracle.DataAccess.dll

Microsoft .NET Framework Version: 2.0 or later

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IOracleCustomType Members

IOracleCustomType members are listed in the following tables.

IOracleCustomType Interface Methods

IOracleCustomType interface methods are listed in Table 16-22.

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IOracleCustomType Interface Methods

IOracleCustomType Interface methods are listed in Table 16-23.

FromCustomObject

This interface method creates an Oracle Object or Collection by setting the attribute or element values respectively on the specified Oracle UDT.

Declaration

// C#
void FromCustomObject(OracleConnection con, IntPtr pUdt);

Parameters

• con

  An OracleConnection instance.

• pUdt

  An opaque pointer to the Oracle Object or Collection to be created.

Remarks

The FromCustomObject method is used to build an Oracle Object or Collection from a custom object by setting attribute or element values respectively through the OracleUdt.SetValue method.

The OracleUdt.SetValue method is invoked as follows:

• Oracle Object Type

  For a custom type that represents an Oracle Object Type, the OracleUdt.SetValue method must be invoked for each non-NULL attribute value that needs to be set.

• Oracle Collection Type

  For a custom type that represents an Oracle Collection Type, a single call to OracleUdt.SetValue method specifies the collection element values.

ToCustomObject

This interface initializes a custom object using the specified Oracle UDT.

Declaration

// C#
void ToCustomObject (OracleConnection con, IntPtr pUdt);

Parameters

• con

  An OracleConnection instance.

• pUdt

  An opaque pointer to the Oracle UDT.

Remarks

The ToCustomObject method is used to initialize a custom object from the specified Oracle Object or Collection by retrieving attribute or element values respectively through the OracleUdt.GetValue method.

The OracleUdt.GetValue method is invoked as follows:

• Oracle Object Type

  For a custom type that represents an Oracle Object Type, the OracleUdt.GetValue method must be invoked for each attribute value to be retrieved.

• For a custom type that represents an Oracle Collection Type, a single call to OracleUdt.GetValue method retrieves the collection element values.