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Built-in Type Converters

The following built-in types are supported for @Resource injection in EJBs via elements in a META-INF/ejb-jar.xml or via plain properties in a META-INF/env-entries.properties file.

EJB 3.0 required types:

  • java.lang.Boolean

  • java.lang.Byte

  • java.lang.Character

  • java.lang.Double

  • java.lang.Float

  • java.lang.Integer

  • java.lang.Long

  • java.lang.Short

  • java.lang.String

OpenEJB 3.0 additional types:

  • java.lang.Class

  • java.lang.Enum (any subclass of)

  • java.io.File

  • java.math.BigDecimal

  • java.math.BigInteger

  • java.net.Inet4Address

  • java.net.Inet6Address

  • java.net.InetAddress

  • java.net.URI

  • java.net.URL

  • java.util.ArrayList

  • java.util.Date

  • java.util.HashMap

  • java.util.Hashtable

  • java.util.IdentityHashMap

  • java.util.LinkedHashMap

  • java.util.LinkedHashSet

  • java.util.LinkedList

  • java.util.List

  • java.util.Map

  • java.util.Properties

  • java.util.Set

  • java.util.SortedMap

  • java.util.TreeMap

  • java.util.TreeSet

  • java.util.Vector

  • java.util.WeakHashMap

  • java.util.logging.Logger

  • java.util.regex.Pattern

  • javax.management.ObjectName

  • javax.naming.Context

  • org.apache.commons.logging.Log

  • org.apache.log4j.Logger

To use an OpenEJB additional type in xml, simply declare it as java.lang.String and it will be converted on the fly to the field/setter type used by the bean class. For example:

package org.superbiz.foo;

import java.util.Date;

@Stateless
public class MyBean {

    @Resource
    private Date myDate;
}

Works with an ejb-jar.xml as follows:

<ejb-jar xmlns="http://java.sun.com/xml/ns/javaee" version="3.0"
metadata-complete="false">
  <enterprise-beans>
    <session>
      <ejb-name>MyBean</ejb-name>
      <env-entry>
  <env-entry-name>org.superbiz.foo.MyBean/myDate</env-entry-name>
  <env-entry-value>2008-04-19</env-entry-value>
  <env-entry-type>java.lang.String</env-entry-type>
      </env-entry>
    </session>
  </enterprise-beans>
</ejb-jar>

Or with an env-entries.properties file as follows:

org.superbiz.foo.MyBean/myDate = 2008-04-19