Contents

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Title and Copyright Information

Preface

• Documentation Accessibility
• Conventions

1 Introduction and Roadmap

• Document Scope and Audience
• Guide to this Document
• Related Documentation
• Samples and Tutorials for the EJB Developer
  • Avitek Medical Records Application (MedRec) and Tutorials
  • EJB Examples in the WebLogic Server Distribution
• New and Changed Features in This Release

2 Understanding Enterprise JavaBeans

• How Do Applications Use EJBs?
  • Session EJBs Implement Business Logic
    • Stateless Session Beans
    • Stateful Session Beans
  • Entity EJBs Maintain Persistent Data
  • Message-Driven Beans Implement Loosely Coupled Business Logic
• EJB Anatomy and Environment
  • EJB Components
  • The EJB Container
  • EJB Deployment Descriptors
  • Key Deployment Element Mappings
    • Bean and Resource References
    • Security Roles
• EJBs, Clients, and Application Objects
  • EJB Communications
• EJBs and Message Destination References
• WebLogic Server Value-Added EJB Features
  • Performance-Enhancing Features for WebLogic Server EJBs
  • Pooling Improves EJB Response Time
  • Caching Improves EJB Performance
  • Additional Caching Capabilities for CMP Entities
  • Field Groups for Efficient Queries (CMP Entities)
  • Configurable Write Behaviors
  • Operation Ordering and Batching (CMP Entities)
  • Optimized Database Updates (CMP Entities)
  • Read-Only Pattern and Read-Only Invalidation (CMP Entities)
  • CMP Beans Increase Developer Productivity
  • Automatic Primary Key Generation (CMP Entities)
  • Automatic Table Creation (CMP Entities)
  • Dynamic Queries (CMP Entities)
  • Reliability and Availability Features
  • Load Balancing Among Clustered EJBs Increases Scalability
  • Failover for Clustered EJBs Increases Reliability
• Securing EJBs

3 Designing Enterprise JavaBeans

• Choosing the Right Bean Type
  • Session Bean Features
  • Stateful Session Beans
  • Stateless Session Beans
    • Stateless Beans Offer Performance and Scalability Advantages
    • Exposing Stateless Session Beans as Web Services
  • Entity Bean Features
    • Key Features of Entity Beans
    • Read-Write versus Read-Only Entity Beans
    • Entity Bean Performance and Data Consistency Characteristics
  • Message-Driven Beans
• Persistence Management Alternatives
  • Use Container-Managed Persistence (CMP) for Productivity and Portability
  • Use Bean-Managed Persistence (BMP) Only When Necessary
• Transaction Design and Management Options
  • Understanding Transaction Demarcation Strategies and Performance
  • Demarcating Transactions at the Server Level is Most Efficient
  • Container-Managed Transactions Are Simpler to Develop and Perform Well
    • Rollback
    • Transaction Boundaries
    • Distributing Transactions Across Beans
    • Costly Option: Distributing Transactions Across Databases
  • Bean-Level Transaction Management
    • When to Use Bean-Managed Transactions
    • Keep Bean-Managed Transactions Short
  • Client-Level Transaction Management is Costly
  • Transaction Isolation: A Performance vs. Data Consistency Choice
• Satisfying Application Requirements with WebLogic Server EJBs

4 Implementing Enterprise JavaBeans

• Overview of the EJB Development Process
• Create a Source Directory
• Create EJB Classes and Interfaces
  • Using WebLogic Server Generic Bean Templates
  • Programming Client Access to EJBs
  • Programming Client to Obtain Initial Context
  • Programming Client to Look Up a Home Interface
    • Using EJB Links
  • Configuring EJBs to Send Requests to a URL
  • Specifying an HTTP Resource by URL
  • Specifying an HTTP Resource by Its JNDI Name
  • Accessing HTTP Resources from Bean Code
  • Configuring Network Communications for an EJB
  • Programming and Configuring Transactions
  • Programming Container-Managed Transactions
  • Configuring Automatic Retry of Container-Managed Transactions
  • Programming Bean-Managed Transactions
  • Programming Transactions That Are Distributed Across EJBs
    • Calling multiple EJBs from a client's transaction context
    • Using an EJB "Wrapper" to Encapsulate a Cross-EJB Transaction
• Programming the EJB Timer Service
  • Clustered Versus Local EJB Timer Services
  • Clustered EJB Timer Services
  • Local EJB Timer Services
  • Using Java Programming Interfaces to Program Timer Objects
  • EJB 2.1 Timer-related Programming Interfaces
  • WebLogic Server-specific Timer-related Programming Interfaces
  • Timer Deployment Descriptors
  • Configuring Clustered EJB Timers
• Declare Web Service References
• Compile Java Source
• Generate Deployment Descriptors
• Edit Deployment Descriptors
  • Security Elements
  • Resource Mapping Elements
  • Persistence Elements
  • Clustering Elements
  • Data Consistency Elements
  • Container-Managed Transactions Elements
  • Performance Elements
  • Network Communications Elements
• Generate EJB Wrapper Classes, and Stub and Skeleton Files
  • appc and Generated Class Name Collisions
• Package
  • Packaging Considerations for EJBs with Clients in Other Applications
• Deploy
• Solving Problems During Development
  • Adding Line Numbers to Class Files
  • Monitoring Data
  • Creating Debug Messages
• WebLogic Server Tools for Developing EJBs
  • Oracle JDeveloper
  • Oracle Enterprise Pack for Eclipse
  • Administration Console
  • javac
  • EJBGen
  • DDInit
  • WebLogic Server Ant Utilities
  • weblogic.Deployer
  • appc
  • DDConverter
  • Comparison of EJB Tool Features

5 Session EJBs

• Comparing Stateless and Stateful Session Beans
• Pooling for Stateless Session EJBs
• Caching and Passivating Stateful Session EJBs
  • Stateful Session EJB Creation
  • Stateful Session EJB Passivation
  • Controlling Passivation
    • Eager Passivation (LRU)
    • Lazy Passivation (NRU)
  • Specifying the Persistent Store Directory for Passivated Beans
  • Configuring Concurrent Access to Stateful Session Beans
• Design Decisions for Session Beans
  • Choosing Between Stateless and Stateful Beans
  • Choosing the Optimal Free Pool Setting for Stateless Session Beans
• Implementing Session Beans
  • WebLogic-Specific Configurable Behaviors for Session Beans

6 Entity EJBs

• Managing Entity Bean Pooling and Caching
  • Understanding Entity Pooling
  • Understanding Entity Caching
  • Understanding Passivation of Entity Beans
  • Understanding ejbLoad() and ejbStore() Behavior
  • Controlling the Behavior of ejbLoad() and ejbStore()
  • Disabling Cache Flushing
  • Configuring Application-Level Caching
• Using Primary Keys
  • Specifying Primary Keys and Primary Key Classes
  • Guidelines for Primary Keys
  • Automatically Generating Primary Keys
  • Specifying Automatic Key Generation for Oracle Databases
  • Specifying Automatic Key Generation for Microsoft SQL Server
  • Generating Primary Keys with a Named Sequence Table
  • Declaring Primary Key Field Type
  • Support for Oracle Database SEQUENCE
  • String-Valued CMP Field Trimming
  • Benefits of String Trimming
  • Disabling String Trimming
• Configuring Entity EJBs for Database Operations
  • Configuring Table Mapping
  • Automatic Table Creation (Development Only)
  • Delaying Database Inserts
  • Why Delay Database Inserts?
  • Configuring Delayed Database Inserts
  • Limiting Database Reads with cache-between-transactions
  • Updating the Database Before Transaction Ends
  • Dynamic Queries
  • Enabling Dynamic Queries
  • Executing Dynamic Queries
  • Enabling BLOB and CLOB Column Support for Oracle or DB2 Databases
  • Specifying a BLOB Column Using the Deployment Descriptor
  • Serialization for cmp-fields of Type byte[] Mapped to an Oracle Blob
  • Specifying a CLOB Column Using the Deployment Descriptor
  • Optimized CLOB Column Insertion on Oracle 10g
  • Specifying Field Groups
  • Ordering and Batching Operations
  • Operation Ordering
  • Batch Operations Guidelines and Limitations
  • Using Query Caching (Read-Only Entity Beans)
• Using SQL in Entity Beans
• Using Container-Managed Relationships (CMRs)
  • CMR Requirements and Limitations
  • CMR Cardinality
  • CMR Direction
  • Removing CMRs
  • Defining Container-Managed Relationships (CMRs)
  • Specifying Relationships in ejb-jar.xml
    • Specifying Relationship Cardinality
    • Specifying Relationship Directionality
  • Specifying Relationships in weblogic-cmp-jar.xml
    • One-to-One and One-to-Many Relationships
    • Many-to-Many Relationships
    • Specifying CMRs for EJBs that Map to Multiple Tables
  • About CMR Fields and CMR Field Accessor Methods
  • Using Cascade Delete for Entities in CMRs
  • Relationship Caching
  • Enabling Relationship Caching
• Choosing a Concurrency Strategy
  • Exclusive Concurrency
  • Database Concurrency
  • Optimistic Concurrency
  • Preventing Stale Optimistic Bean Data
  • Explicit Invalidation of Optimistic Beans
  • Invalidation Options for Optimistic Concurrency in Clusters
  • Check Data for Validity with Optimistic Concurrency
  • Optimistic Concurrency and Oracle Databases
  • Read Only Concurrency
  • Concurrency Strategy Trade-Offs
  • Configuring Concurrency Strategy
  • Deadlock Prevention for Exclusive Concurrency and Cascade Deletes
  • Using the Read-Mostly Pattern
  • Configuring Entity Beans for Read-Mostly Pattern
  • Invalidating Read-Only Entity EJBs Implicitly
  • Invalidating Entity EJBs Explicitly
• CMP Entity Bean Descriptors Element by Feature
  • Container-Managed Relationship Elements
  • Primary Key Elements

7 Message-Driven EJBs

8 Deployment Guidelines for Enterprise JavaBeans

• Before You Deploy an EJB
• Understanding and Performing Deployment Tasks
• Deployment Guidelines for EJBs
  • Deploy EJBs as Part of an Enterprise Application
  • Deploy EJBs That Call Each Other in the Same Application
  • Deploying EJBs that Use Dependency Injection
  • Deploy Homogeneously to a Cluster
  • Deploying Pinned EJBs to a Cluster
  • Redeploying an EJB
  • Using FastSwap Deployment to Minimize Deployment
  • Understanding Warning Messages
  • Disabling EJB Deployment Warning Messages

A Deployment Descriptor Schema and Document Type Definitions Reference

• XML Schema Definitions and Namespace Declarations
  • weblogic-ejb-jar.xml Namespace Declaration and Schema Location
  • weblogic-cmp-jar.xml Namespace Declaration and Schema Location
  • ejb-jar.xml Namespace Declaration and Schema Location
• Document Type Definitions and DOCTYPE Header Information

B weblogic-ejb-jar.xml Deployment Descriptor Reference

• 2.1 weblogic-ejb-jar.xml File Structure
• 2.1 weblogic-ejb-jar.xml Elements
• allow-concurrent-calls
  • Function
  • Example
• allow-remove-during-transaction
  • Function
  • Example
• cache-between-transactions
  • Function
  • Example
• cache-type
  • Function
  • Example
• client-authentication
  • Function
  • Example
• client-cert-authentication
  • Function
  • Example
• clients-on-same-server
  • Function
  • Example
• component-factory-class-name
  • Function
• concurrency-strategy
  • Function
  • Example
• confidentiality
  • Function
  • Example
• connection-factory-jndi-name
  • Function
  • Example
• connection-factory-resource-link
  • Function
• create-as-principal-name
  • Function
• delay-updates-until-end-of-tx
  • Function
  • Example
• description
  • Function
  • Example
• destination-jndi-name
  • Function
  • Example
• destination-resource-link
  • Function
• disable-warning
  • Function
  • Example
• dispatch-policy
  • Function
  • Example
• distributed-destination-connection
  • Function
  • Example
• durable-subscription-deletion
  • Function
  • Example
• ejb-name
  • Function
  • Example
• ejb-reference-description
  • Function
  • Example
• ejb-ref-name
  • Function
  • Example
• enable-bean-class-redeploy
  • Function
  • Example
• enable-call-by-reference
  • Function
  • Example
• enable-dynamic-queries
  • Function
  • Example
• entity-always-uses-transaction
  • Function
• entity-cache
  • Function
  • Example
• entity-cache-name
  • Function
  • Example
• entity-cache-ref
  • Function
  • Example
• entity-clustering
  • Function
  • Example
• entity-descriptor
  • Function
  • Example
• estimated-bean-size
  • Function
  • Example
• externally-defined
  • Function
• finders-load-bean
  • Function
  • Example
• generate-unique-jms-client-id
  • Function
• global-role
• home-call-router-class-name
  • Function
  • Example
• home-is-clusterable
  • Function
  • Example
• home-load-algorithm
  • Function
  • Example
• idempotent-methods
  • Function
  • Example
• identity-assertion
  • Function
  • Example
• idle-timeout-seconds
  • Function
  • Example
• iiop-security-descriptor
  • Function
  • Example
• init-suspend-seconds
  • Function
• initial-beans-in-free-pool
  • Function
  • Example
• initial-context-factory
  • Function
  • Example
• integrity
  • Function
  • Example
• invalidation-target
  • Function
  • Example
• is-modified-method-name
  • Function
  • Example
• isolation-level
  • Function
  • Oracle Database-Only Isolation Levels
  • Example
• jms-client-id
  • Function
  • Example
• jms-polling-interval-seconds
  • Function
  • Example
• jndi-binding
  • Function
  • Example
• jndi-name
  • Function
  • Example
• local-jndi-name
  • Function
  • Example
• max-beans-in-cache
  • Function
  • Example
• max-beans-in-free-pool
  • Function
  • Example
• max-messages-in-transaction
  • Function
• max-queries-in-cache
  • Function
• max-suspend-seconds
  • Function
• message-destination-descriptor
  • Function
  • Example
• message-destination-name
  • Function
  • Example
• message-driven-descriptor
  • Function
  • Example
• method
  • Function
  • Example
• method-intf
  • Function
  • Example
• method-name
  • Function
  • Example
• method-param
  • Function
  • Example
• method-params
  • Function
  • Example
• network-access-point
  • Function
  • Example
• passivate-as-principal-name
  • Function
• persistence
  • Function
  • Example
• persistence-use
  • Function
  • Example
• persistent-store-dir
  • Function
  • Example
• persistent-store-logical-name
  • Function
• pool
  • Function
  • Example
• principal-name
  • Function
  • Example
• provider-url
  • Function
  • Example
• read-timeout-seconds
  • Function
  • Example
• remote-client-timeout
  • Function
  • Example
• remove-as-principal-name
  • Function
• replication-type
  • Function
  • Example
• resource-env-ref-name
  • Function
  • Example
• res-ref-name
  • Function
  • Example
• resource-adapter-jndi-name
  • Function
• resource-description
  • Function
  • Example
• resource-env-description
  • Function
  • Example
• resource-link
  • Function
  • Example
• retry-count
  • Function
• retry-methods-on-rollback
  • Function
• role-name
  • Function
  • Example
• run-as-identity-principal
  • Function
  • Example
• run-as-principal-name
  • Function
  • Example
• run-as-role-assignment
  • Function
  • Example
  • A_EJB_with_runAs_role_X
  • B_EJB_with_runAs_role_X
  • C_EJB_with_runAs_role_Y
• security-permission
  • Function
  • Example
• security-permission-spec
  • Function
  • Example
• security-role-assignment
  • Function
  • Example
• service-reference-description
  • Function
  • Example
• session-timeout-seconds
  • Function
  • Example
• singleton-bean-call-router-class-name
  • Function
  • Example
• singleton-bean-is-clusterable
  • Function
  • Example
• singleton-bean-load-algorithm
  • Function
  • Example
• singleton-clustering
  • Function
  • Example
• singleton-session-descriptor
  • Function
  • Example
• stateful-session-cache
  • Function
  • Example
• stateful-session-clustering
  • Function
  • Example
• stateful-session-descriptor
  • Function
  • Example
• stateless-bean-call-router-class-name
  • Function
  • Example
• stateless-bean-is-clusterable
  • Function
  • Example
• stateless-bean-load-algorithm
  • Function
  • Example
• stateless-clustering
  • Function
  • Example
• stateless-session-descriptor
  • Function
  • Example
• stick-to-first-server
  • Function
  • Example
• timer-descriptor
  • Function
• timer-implementation
  • Function
  • Example
• transaction-descriptor
  • Function
  • Example
• transaction-isolation
  • Function
  • Example
• transport-requirements
  • Function
  • Example
• trans-timeout-seconds
  • Function
  • Example
• type-identifier
  • Function
  • Example
• type-storage
  • Function
  • Example
• type-version
  • Function
  • Example
• use-serverside-stubs
  • Function
  • Example
• use81-style-polling
  • Function
  • Example
• weblogic-compatibility
  • Function
• weblogic-ejb-jar
  • Function
• weblogic-enterprise-bean
  • Function
• work-manager
  • Function

C weblogic-cmp-jar.xml Deployment Descriptor Reference

• 2.1 weblogic-cmp-jar.xml Deployment Descriptor File Structure
• 2.1 weblogic-cmp-jar.xml Deployment Descriptor Elements
• allow-readonly-create-and-remove
  • Function
  • Example
• automatic-key-generation
  • Function
  • Example
• caching-element
  • Function
  • Example
• caching-name
  • Function
  • Example
• check-exists-on-method
  • Function
  • Example
• cluster-invalidation-disabled
  • Function
  • Example
• cmp-field
  • Function
  • Example
• cmr-field
  • Function
  • Example
• column-map
  • Function
  • Example
• compatibility
  • Function
  • Example
• create-default-dbms-table
  • Function
  • Automatic Table Creation
  • Automatic Oracle Database SEQUENCE Generation
  • Example
• database-specific-sql
  • Function
  • Example
• database-type
  • Function
  • Example
• data-source-jndi-name
  • Function
  • Example
• db-cascade-delete
  • Function
  • Setting up Oracle Database for Cascade Delete
  • Example
• dbms-column
  • Function
  • Example
• dbms-column-type
  • Function
  • Example
• dbms-default-value
  • Function
  • Example
• default-dbms-tables-ddl
  • Function
• delay-database-insert-until
  • Function
  • Example
• description
  • Function
  • Example
• disable-string-trimming
  • Function
  • Example
• ejb-name
  • Function
  • Example
• ejb-ql-query
  • Function
  • Example
• enable-batch-operations
  • Function
  • Example
• enable-query-caching
  • Function
  • Example
• field-group
  • Function
  • Example
• field-map
  • Function
  • Example
• finders-return-nulls
  • Function
  • Example
• foreign-key-column
  • Function
  • Example
• foreign-key-table
  • Function
  • Example
• generator-name
  • Function
  • Example
• generator-type
  • Function
  • Example
• group-name
  • Function
  • Example
• include-result-cache-hint
  • Function
• include-updates
  • Function
  • Example
• instance-lock-order
  • Function
  • Example
• key-cache-size
  • Function
  • Example
• key-column
  • Function
  • Example
• lock-order
  • Function
  • Example
• max-elements
  • Function
  • Example
• method-name
  • Function
  • Example
• method-param
  • Function
  • Example
• method-params
  • Function
  • Example
• optimistic-column
  • Function
  • Example
• order-database-operations
  • Function
  • Example
• pass-through-columns
  • Function
  • Example
• primary-key-table
  • Function
  • Example
• query-method
  • Function
  • Example
• relation-name
  • Function
  • Example
• relationship-caching
  • Function
  • Example
• relationship-role-map
  • Function
  • Example
  • Mapping a Bean on Foreign Key Side of a Relationship to Multiple Tables
  • Mapping a Bean on Primary Key Side of a Relationship to Multiple Tables
• relationship-role-name
  • Function
  • Example
• serialize-byte-array-to-oracle-blob
  • Function
  • Example
• serialize-char-array-to-bytes
  • Function
  • Example
• sql
  • Function
  • Example
• sql-query
  • Function
  • Example
• sql-select-distinct
  • Function
  • Example
• sql-shape
  • Function
  • Example
• sql-shape-name
  • Function
  • Example
• table-map
  • Function
  • Example
• table-name
  • Function
  • Example
• trigger-updates-optimistic-column
  • Function
  • Example
• unknown-primary-key-field
  • Function
  • Example
• use-select-for-update
  • Function
  • Example
• validate-db-schema-with
  • Function
  • Example
• verify-columns
  • Function
  • Example
• verify-rows
  • Function
  • Example
• version-column-initial-value
  • Function
  • Example
• weblogic-ql
  • Function
  • Example
• weblogic-query
  • Function
  • Example
• weblogic-rdbms-bean
  • Function
  • Example
• weblogic-rdbms-jar
  • Function
  • Example
• weblogic-rdbms-relation
  • Function
  • Examples
  • Defining a One-to-One Relationship
  • Defining a One-to-Many Relationship
  • Defining a Many-to-Many Relationship
• weblogic-relationship-role
  • Function
  • Example

D appc Reference

• appc
  • Advantages of Using appc
  • appc Syntax
  • Designating Alternative Deployment Descriptors
  • appc Options
  • appc and EJBs

E EJBGen Reference

• Running EJBGen
  • EJBGen Distribution and Examples
  • Invoking EJBGen
  • EJBGen Command Options
  • Using Key EJBGen Features
  • Controlling the Files EJBGen Generates
  • Using Property Files with EJBGen
  • Using User Variables
  • Using Predefined Variables
  • Surround Attributes that Contain Spaces With Double Quotes
  • EJBGen Supports Tag Inheritance
• Examples of EJBGen Tag Usage
  • Mapping an Entity Bean to Several Tables with EJBGen
  • Specifying Relationship Caching with EJBGen Tags
  • Specifying Relationships with EJBGen Tags
  • Upgrading Relationships to Use Local Interfaces
• Enum Attribute Constant Values
  • Constants.Bool
  • Constants.TransactionAttribute
  • Constants.IsolationLevel
  • Constants.RefType
  • Constants.HomeLoadAlgorithm
  • Constants.Interface
  • Constants.ConcurrencyStrategy
• EJBGen Annotation Reference
• EJB Container Annotations
  • weblogic.ejbgen.ActivationConfigProperties
  • weblogic.ejbgen.ActivationConfigProperty
  • Attributes
  • weblogic.ejbgen.AutomaticKeyGeneration
  • Attributes
  • weblogic.ejbgen.CmpField
  • Attributes
  • weblogic.ejbgen.CmrField
  • Attributes
  • weblogic.ejbgen.Compatibility
  • Attributes
  • weblogic.ejbgen.CreateDefaultDbmsTables
  • weblogic.ejbgen.CreateDefaultRdbmsTables
  • weblogic.ejbgen.DBSpecificSQL
  • Attributes
  • weblogic.ejbgen.EjbClientJar
  • weblogic.ejbgen.EjbInterface (deprecated)
  • Attributes
  • weblogic.ejbgen.EjbLocalRef
  • Attributes
  • weblogic.ejbgen.EjbLocalRefs
  • weblogic.ejbgen.EjbRef
  • Attributes
  • weblogic.ejbgen.EjbRefs
  • weblogic.ejbgen.Entity
  • Attributes
  • weblogic.ejbgen.EntityCacheRef
  • Attributes
  • weblogic.ejbgen.EnvEntries
  • weblogic.ejbgen.EnvEntry
  • Attributes
  • weblogic.ejbgen.FileGeneration
  • Attributes
  • weblogic.ejbgen.Finder
  • Attributes
  • weblogic.ejbgen.Finders
  • weblogic.ejbgen.ForeignJmsProvider
  • Attributes
  • weblogic.ejbgen.JarSettings
  • Attributes
  • weblogic.ejbgen.JndiName
  • Attributes
  • weblogic.ejbgen.LocalHomeMethod
  • Attributes
  • weblogic.ejbgen.LocalMethod
  • Attributes
  • weblogic.ejbgen.MessageDestination
  • Attributes
  • weblogic.ejbgen.MessageDestinationRef
  • Attributes
  • weblogic.ejbgen.MessageDestinationRefs
  • weblogic.ejbgen.MessageDestinations
  • weblogic.ejbgen.MessageDriven
  • Attributes
  • weblogic.ejbgen.MethodIsolationLevelPattern
  • Attributes
  • weblogic.ejbgen.MethodIsolationLevelPatterns
  • weblogic.ejbgen.MethodPermissionPattern
  • Attributes
  • weblogic.ejbgen.MethodPermissionPatterns
  • weblogic.ejbgen.PrimKeyField
  • weblogic.ejbgen.Relation
  • Attributes
  • weblogic.ejbgen.Relations
  • weblogic.ejbgen.RelationshipCachingElement
  • Attributes
  • weblogic.ejbgen.RelationshipCachingElements
  • weblogic.ejbgen.RemoteHomeMethod
  • Attributes
  • weblogic.ejbgen.RemoteMethod
  • Attributes
  • weblogic.ejbgen.ResourceEnvRef
  • Attributes
  • weblogic.ejbgen.ResourceEnvRefs
  • weblogic.ejbgen.ResourceRef
  • Attributes
  • weblogic.ejbgen.ResourceRefs
  • weblogic.ejbgen.RoleMapping
  • Attributes
  • weblogic.ejbgen.RoleMappings
  • weblogic.ejbgen.SecurityRoleRef
  • Attributes
  • weblogic.ejbgen.SecurityRoleRefs
  • weblogic.ejbgen.Select
  • Attributes
  • weblogic.ejbgen.ServiceEndpointMethod
  • Attributes
  • weblogic.ejbgen.ServiceRef
  • Attributes
  • weblogic.ejbgen.ServiceRefs
  • weblogic.ejbgen.Session
  • Attributes
  • weblogic.ejbgen.SqlFinder
  • Attributes
  • weblogic.ejbgen.SqlFinders
  • weblogic.ejbgen.SqlShape
  • Attributes
  • weblogic.ejbgen.SqlShapeTable
  • Attributes
  • weblogic.ejbgen.SqlShapes
  • weblogic.ejbgen.ValueObject
  • Attributes
  • weblogic.ejbgen.ValueObjectField
  • Attributes

F Important Information for EJB 1.1 Users

• Writing for RDBMS Persistence for EJB 1.1 CMP
  • Finder Signature
  • finder-list Element
  • finder-query Element
• Using WebLogic Query Language (WLQL) for EJB 1.1 CMP
  • WLQL Syntax
  • WLQL Operators
  • WLQL Operands
  • Examples of WLQL Expressions
• Using SQL for CMP 1.1 Finder Queries
• Tuned EJB 1.1 CMP Updates in WebLogic Server
• Using is-modified-method-name to Limit Calls to ejbStore()
• 5.1 weblogic-ejb-jar.xml Deployment Descriptor File Structure
• 5.1 weblogic-ejb-jar.xml Deployment Descriptor Elements
  • caching-descriptor
  • max-beans-in-free-pool
  • initial-beans-in-free-pool
  • max-beans-in-cache
  • idle-timeout-seconds
  • cache-strategy
  • read-timeout-seconds
  • persistence-descriptor
  • is-modified-method-name
  • delay-updates-until-end-of-tx
  • persistence-type
  • db-is-shared
  • stateful-session-persistent-store-dir
  • persistence-use
  • clustering-descriptor
  • home-is-clusterable
  • home-load-algorithm
  • home-call-router-class-name
  • stateless-bean-is-clusterable
  • stateless-bean-load-algorithm
  • stateless-bean-call-router-class-name
  • stateless-bean-methods-are-idempotent
  • transaction-descriptor
  • trans-timeout-seconds
  • reference-descriptor
  • resource-description
  • ejb-reference-description
  • enable-call-by-reference
  • jndi-name
  • transaction-isolation
  • isolation-level
  • Oracle-Only Isolation Levels
  • method
  • security-role-assignment
• 1.1 weblogic-cmp-jar.xml Deployment Descriptor File Structure
• 1.1 weblogic-cmp-jar.xml Deployment Descriptor Elements
  • RDBMS Definition Elements
  • enable-tuned-updates
  • pool-name
  • schema-name
  • table-name
  • EJB Field-Mapping Elements
  • attribute-map
  • object-link
  • bean-field
  • dbms-column
  • Finder Elements
  • finder-list
  • finder
  • method-name
  • method-params
  • method-param
  • finder-query
  • finder-expression

G EJB Query Language (EJB-QL) and WebLogic Server

• EJB QL Requirement for EJB 2.x Beans
• Using the EJB 2.x WebLogic QL Extension for EJB QL
  • upper and lower Functions
  • upper
  • lower
  • Using ORDER BY
  • Using Subqueries
  • Subquery Return Types
  • Subqueries as Comparison Operands
  • Correlated and Uncorrelated Subqueries
    • DISTINCT Clause with Subqueries
  • Using Arithmetic Functions
  • Using Aggregate Functions
  • Using Queries that Return ResultSets
  • Using Oracle SELECT HINTS
  • "get" and "set" Method Restrictions
• Properties-Based Methods of the Query Interface
• Migrating from WLQL to EJB QL
• Known Issue with Implied Cross Products
• EJB QL Error-Reporting
  • Visual Indicator of Error in Query
  • Multiple Errors Reported after a Single Compilation