JDBCIdentityColumnCreateCommand (JBoss Server API) - JBoss 4.0.1 sp1 server API Documentation 英文版文档

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org.jboss.ejb.plugins.cmp.jdbc
Class JDBCIdentityColumnCreateCommand

java.lang.Object
  org.jboss.ejb.plugins.cmp.jdbc.JDBCAbstractCreateCommand
      org.jboss.ejb.plugins.cmp.jdbc.JDBCIdentityColumnCreateCommand

All Implemented Interfaces:: JDBCCreateCommand

Direct Known Subclasses:: JDBC30GeneratedKeysCreateCommand, JDBCDB2IdentityValLocalCreateCommand, JDBCHsqldbCreateCommand, JDBCInformixCreateCommand, JDBCMySQLCreateCommand, JDBCOracleCreateCommand, JDBCPostgreSQLCreateCommand, JDBCSQLServerCreateCommand, JDBCSybaseCreateCommand

public abstract class JDBCIdentityColumnCreateCommand
extends JDBCAbstractCreateCommand

Base class for create commands where the PK value is generated as side effect of performing the insert operation. This is typically associated with database platforms that use identity columns

Author:: Jeremy Boynes

Field Summary

protected JDBCCMPFieldBridge pkField


protected String pkSQL


Fields inherited from class org.jboss.ejb.plugins.cmp.jdbc.JDBCAbstractCreateCommand

createAllowed, debug, entity, exceptionProcessor, insertAfterEjbPostCreate, insertFields, insertSQL, log, securityManager, trace

Constructor Summary

JDBCIdentityColumnCreateCommand()


Method Summary

protected int executeInsert(int paramIndex, PreparedStatement ps, EntityEnterpriseContext ctx)


protected void initGeneratedFields()


protected boolean isInsertField(JDBCFieldBridge field)


protected SQLException processException(Throwable t)
          Helper for subclasses that use reflection to avoid driver dependencies.

Methods inherited from class org.jboss.ejb.plugins.cmp.jdbc.JDBCAbstractCreateCommand

afterInsert, beforeInsert, checkCreateAllowed, execute, generateFields, getGeneratedPKField, getPrimaryKey, init, initEntityCommand, initInsertFields, initInsertSQL, performInsert, prepareStatement

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

pkField

protected JDBCCMPFieldBridge pkField

pkSQL

protected String pkSQL

Constructor Detail

JDBCIdentityColumnCreateCommand

public JDBCIdentityColumnCreateCommand()

Method Detail

isInsertField

protected boolean isInsertField(JDBCFieldBridge field)

Overrides:: isInsertField in class JDBCAbstractCreateCommand

initGeneratedFields

protected void initGeneratedFields()
                            throws org.jboss.deployment.DeploymentException

Overrides:: initGeneratedFields in class JDBCAbstractCreateCommand

Throws:: org.jboss.deployment.DeploymentException

executeInsert

protected int executeInsert(int paramIndex,
                            PreparedStatement ps,
                            EntityEnterpriseContext ctx)
                     throws SQLException

Overrides:: executeInsert in class JDBCAbstractCreateCommand

Throws:: SQLException

processException

protected SQLException processException(Throwable t)

Helper for subclasses that use reflection to avoid driver dependencies.

Parameters:: t - an Exception raised by a reflected call
Returns:: SQLException extracted from the Throwable