index-group=Unrevised type=page status=published title=Custom Injection
*Help us document this example! Click the blue pencil icon in the upper right to edit this page.* ## Pickup package org.superbiz.enventries; //START SNIPPET: code import java.beans.PropertyEditorManager; public enum Pickup { HUMBUCKER, SINGLE_COIL; // Here's the little magic where we register the PickupEditor // which knows how to create this object from a string. // You can add any of your own Property Editors in the same way. static { PropertyEditorManager.registerEditor(Pickup.class, PickupEditor.class); } } ## PickupEditor package org.superbiz.enventries; /** * With a java.beans.PropertyEditor, you can go way beyond the built-in * types that OpenEJB supports and can extend dependency injection to * just about anywhere. * <p/> * In the world of electric guitars, two types of pickups are used: humbucking, and single-coil. * Guitarists often refer to their guitars as HSS, meaning a guitar with 1 humbucker and * 2 single coil pickups, and so on. This little PropertyEditor supports that shorthand notation. * * @version $Revision$ $Date$ */ //START SNIPPET: code public class PickupEditor extends java.beans.PropertyEditorSupport { public void setAsText(String text) throws IllegalArgumentException { text = text.trim(); if (text.equalsIgnoreCase("H")) setValue(Pickup.HUMBUCKER); else if (text.equalsIgnoreCase("S")) setValue(Pickup.SINGLE_COIL); else throw new IllegalStateException("H and S are the only supported Pickup aliases"); } } ## Stratocaster package org.superbiz.enventries; import javax.annotation.Resource; import javax.ejb.Stateless; import java.io.File; import java.util.Date; import java.util.List; import java.util.Map; /** * In addition to the standard env-entry types (String, Integer, Long, Short, Byte, Boolean, Double, Float, Character) * OpenEJB supports many other types. */ //START SNIPPET: code @Stateless public class Stratocaster { @Resource(name = "pickups") private List<Pickup> pickups; @Resource(name = "style") private Style style; @Resource(name = "dateCreated") private Date dateCreated; @Resource(name = "guitarStringGuages") private Map<String, Float> guitarStringGuages; @Resource(name = "certificateOfAuthenticity") private File certificateOfAuthenticity; public Date getDateCreated() { return dateCreated; } /** * Gets the guage of the electric guitar strings * used in this guitar. * * @param string * @return */ public float getStringGuage(String string) { return guitarStringGuages.get(string); } public List<Pickup> getPickups() { return pickups; } public Style getStyle() { return style; } public File getCertificateOfAuthenticity() { return certificateOfAuthenticity; } } ## Style package org.superbiz.enventries; /** * @version $Revision$ $Date$ */ //START SNIPPET: code public enum Style { STANDARD, DELUX, VINTAGE; } ## StratocasterTest package org.superbiz.enventries; import junit.framework.TestCase; import javax.ejb.EJB; import javax.ejb.embeddable.EJBContainer; import java.io.File; import java.text.DateFormat; import java.util.Date; import java.util.List; import java.util.Locale; import static java.util.Arrays.asList; /** * @version $Rev: 1090810 $ $Date: 2011-04-10 07:49:26 -0700 (Sun, 10 Apr 2011) $ */ //START SNIPPET: code public class StratocasterTest extends TestCase { @EJB private Stratocaster strat; public void test() throws Exception { EJBContainer.createEJBContainer().getContext().bind("inject", this); Date date = DateFormat.getDateInstance(DateFormat.MEDIUM, Locale.US).parse("Mar 1, 1962"); assertEquals("Strat.getDateCreated()", date, strat.getDateCreated()); List<Pickup> pickups = asList(Pickup.SINGLE_COIL, Pickup.SINGLE_COIL, Pickup.SINGLE_COIL); assertEquals("Strat.getPickups()", pickups, strat.getPickups()); assertEquals("Strat.getStyle()", Style.VINTAGE, strat.getStyle()); assertEquals("Strat.getStringGuage(\"E1\")", 0.052F, strat.getStringGuage("E1")); assertEquals("Strat.getStringGuage(\"A\")", 0.042F, strat.getStringGuage("A")); assertEquals("Strat.getStringGuage(\"D\")", 0.030F, strat.getStringGuage("D")); assertEquals("Strat.getStringGuage(\"G\")", 0.017F, strat.getStringGuage("G")); assertEquals("Strat.getStringGuage(\"B\")", 0.013F, strat.getStringGuage("B")); assertEquals("Strat.getStringGuage(\"E\")", 0.010F, strat.getStringGuage("E")); File file = new File("/tmp/strat-certificate.txt"); assertEquals("Strat.getCertificateOfAuthenticity()", file, strat.getCertificateOfAuthenticity()); } } # Running ------------------------------------------------------- T E S T S ------------------------------------------------------- Running org.superbiz.enventries.StratocasterTest Apache OpenEJB 4.0.0-beta-1 build: 20111002-04:06 http://tomee.apache.org/ INFO - openejb.home = /Users/dblevins/examples/custom-injection INFO - openejb.base = /Users/dblevins/examples/custom-injection INFO - Using 'javax.ejb.embeddable.EJBContainer=true' INFO - Configuring Service(id=Default Security Service, type=SecurityService, provider-id=Default Security Service) INFO - Configuring Service(id=Default Transaction Manager, type=TransactionManager, provider-id=Default Transaction Manager) INFO - Found EjbModule in classpath: /Users/dblevins/examples/custom-injection/target/classes INFO - Beginning load: /Users/dblevins/examples/custom-injection/target/classes INFO - Configuring enterprise application: /Users/dblevins/examples/custom-injection WARN - Method 'lookup' is not available for 'javax.annotation.Resource'. Probably using an older Runtime. INFO - Configuring Service(id=Default Stateless Container, type=Container, provider-id=Default Stateless Container) INFO - Auto-creating a container for bean Stratocaster: Container(type=STATELESS, id=Default Stateless Container) INFO - Configuring Service(id=Default Managed Container, type=Container, provider-id=Default Managed Container) INFO - Auto-creating a container for bean org.superbiz.enventries.StratocasterTest: Container(type=MANAGED, id=Default Managed Container) INFO - Enterprise application "/Users/dblevins/examples/custom-injection" loaded. INFO - Assembling app: /Users/dblevins/examples/custom-injection INFO - Jndi(name="java:global/custom-injection/Stratocaster!org.superbiz.enventries.Stratocaster") INFO - Jndi(name="java:global/custom-injection/Stratocaster") INFO - Jndi(name="java:global/EjbModule1663626738/org.superbiz.enventries.StratocasterTest!org.superbiz.enventries.StratocasterTest") INFO - Jndi(name="java:global/EjbModule1663626738/org.superbiz.enventries.StratocasterTest") INFO - Created Ejb(deployment-id=Stratocaster, ejb-name=Stratocaster, container=Default Stateless Container) INFO - Created Ejb(deployment-id=org.superbiz.enventries.StratocasterTest, ejb-name=org.superbiz.enventries.StratocasterTest, container=Default Managed Container) INFO - Started Ejb(deployment-id=Stratocaster, ejb-name=Stratocaster, container=Default Stateless Container) INFO - Started Ejb(deployment-id=org.superbiz.enventries.StratocasterTest, ejb-name=org.superbiz.enventries.StratocasterTest, container=Default Managed Container) INFO - Deployed Application(path=/Users/dblevins/examples/custom-injection) Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 1.11 sec Results : Tests run: 1, Failures: 0, Errors: 0, Skipped: 0