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Working with Opaque Types

In This Chapter

Using the IfmxUDTSQLInput Interface

Positioning in the Data Stream

Setting or Obtaining Data Attributes

Using the IfmxUDTSQLOutput Interface

Mapping Opaque Data Types

Caching Type Information

Unsupported Methods

Creating Opaque Types and UDRs

Overview of Creating Opaque Types and UDRs

Preparing to Create Opaque Types and UDRs

Steps to Creating Opaque Types

Steps to Creating UDRs

Requirements for the Java Class

Specifying Characteristics for an Opaque Type

Specifying Field Count

Specifying Additional Field Characteristics

Specifying Length

Specifying Alignment

Alignment Values

Specifying SQL Names

Specifying the Java Class Name

Specifying Java Source File Retention

Creating the JAR and Class Files

Creating the .class and .java Files

Creating the .jar File

Sending the Class Definition to the Database Server

Specifying Deployment Descriptor Actions

Specifying a JAR File Temporary Path

Creating an Opaque Type from Existing Code

Using setXXXCast() Methods

Using setSupportUDR() and setUDR()

Removing Opaque Types and JAR Files

Removing UDRs and JAR Files

Removing Overloaded UDRs

Obtaining Information About Opaque Types and UDRs

getXXX() Methods in the UDTMetaData Class

getXXX() Methods in the UDRMetaData Class

Executing in a Transaction

Class Definition

Retrieving Data

Using Smart Large Objects Within an Opaque Type

Creating an Opaque Type from an Existing Java Class with UDTManager

Creating an Opaque Type Using Default Support Functions

Creating an Opaque Type Using Support Functions You Supply

Creating an Opaque Type Without an Existing Java Class

Creating UDRs with UDRManager

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