What is DB adapter?

What is DB adapter?

A database adapter is an implementation of a database connector. Unlike the way to access data with a fixed schema, stored procedures, or queues, one can access table data directly and transparently with a database adapter.

How do I create a DB adapter for SOA?

Below simple steps shows how to create Datasource.

1. Login into the weblogic console http://localhost:7101/console.
2. Click on lock and edit.
3. Expand Services and click on Data sources.
4. Click New -> Generic Data Dource.
5. Enter below information and click Next.

How to create Db Adapter in JDeveloper?

Create a Database Adapter (read & write) in JDeveloper

1. Leave the default Empty composite and click on Finish.
2. Save all.
3. Drag and drop a Database adapter from the Components palette into the “External References” pane.

What is distributed polling in DB adapter?

Once records appear in the database that match the polling SELECT statement, the real fun begins. Each thread will wake up after sleeping, start a transaction, and issue the SELECT FOR UPDATE SKIP LOCK.

What is the role of adapter class in database connection?

The DataAdapter serves as a bridge between a DataSet and a data source for retrieving and saving data. The DataAdapter provides this bridge by mapping Fill, which changes the data in the DataSet to match the data in the data source, and Update, which changes the data in the data source to match the data in the DataSet.

How do I use SOA Database Adapter?

Using a Simple Database Adapter in BPEL

1. Create a new SOA project in JDeveloper.
2. Open up your composite. In the Component Palette on the right, locate the Service Adapters section and drag the Database Adapter over to the External References column in your composite.

What is JMS adapter in SOA?

Today we will learn the concept of JMS adapter in SOA Suite. Oracle JCA Adapter for JMS (Oracle JMS Adapter), enables an Oracle BPEL process or an Oracle Mediator component to interact with JMS. While working with JMS adapter we can use either topics or queues.

How do I use a file adapter in OSB 12c?

File adapter configuration in Oracle Service Bus

1. Create a Service Bus application with service bus project.
2. Open the composite.
3. Right click on the left swim lane, Insert Adapters – > Database.
4. Select connection and enter JNDI name.
5. Select Poll for New or Changed Records in a Table, click Next.

What is logical delete in DB adapter?

Logical Delete Polling Strategy: In this polling strategy, a column in the table is marked with particular value to designate the logical delete thus avoids DB adapter to pick it up the same record again and again.

What is JCA adapter in SOA?

Oracle technology adapters are based on J2EE Connector Architecture (JCA) 1.5 standards and deployed as a resource adapter in the same Oracle WebLogic Server as Oracle Fusion Middleware. Oracle Adapter for Oracle Applications consists of the same architecture as Oracle technology adapters.

What does an Oracle database adapter do for BPEL?

The Oracle Database Adapter enables a BPEL process to communicate with Oracle databases or third party databases through JDBC. The Oracle Database Adapter service is defined within a BPEL process partner link by using the Adapter Configuration Wizard of Oracle BPEL Process Manager.

How does an Oracle database adapter work with JDBC?

The Oracle Database Adapter enables a BPEL process to communicate with Oracle databases or third party databases through JDBC. The Oracle Database Adapter service is defined within a BPEL process partner link by using the Adapter Configuration Wizard of Oracle BPEL Process Manager (Oracle BPEL PM).

When to use Oracle database adapter in mediator?

When the Oracle Database Adapter is used to invoke a one-time DML statement such as INSERTor SELECT, in a Mediator component or an SOA composite, it is called a service reference. In Oracle BPEL process, it is a partner link tied to an Invoke activity.

What does inbound mean in Oracle BPEL process?

The expression inbound (from database into SOA) is commonly used. When the Oracle Database Adapter is used to invoke a one-time DML statement such as INSERT or SELECT, in a Mediator component or an SOA composite, it is called a service reference. In Oracle BPEL process, it is a partner link tied to an Invoke activity.