[英]How to use hibernate-search with JBoss datagrid?
我有使用JBoss Datagrid停止某些文檔並使之可搜索的要求。 因此,我正在考慮使用已經屬於JBoss的Hibernate-search。 但是現在我被卡住了。 這是我在JUnit中生成的簡單代碼。
@Test
public void testName() throws Exception {
Cache<Object, Object> c = new DefaultCacheManager().getCache();
c.put("id", new ProductDG("ean", "desc", newArrayList("image1")));
ProductDG product = (ProductDG) c.get("id");
assertTrue(product.getEAN().equals("ean"));
SessionFactory factory = new AnnotationConfiguration().buildSessionFactory();
Session session = factory.openSession();
FullTextSession fts = getFullTextSession(session);
fts.index(product);
}
@Indexed(index="Product")
class ProductDG {
private String EAN;
private String description;
private List<String> images;
ProductDG(String EAN, String description, List<String> images) {
this.EAN = EAN;
this.description = description;
this.images = images;
}
String getEAN() {
return EAN;
}
String getDescription() {
return description;
}
List<String> getImages() {
return images;
}
}
但是我有這樣的錯誤。
org.hibernate.HibernateException: Connection cannot be null when 'hibernate.dialect' not set
at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.determineDialect(DialectFactoryImpl.java:97)
at org.hibernate.service.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:67)
at org.hibernate.engine.jdbc.internal.JdbcServicesImpl.configure(JdbcServicesImpl.java:174)
at org.hibernate.service.internal.StandardServiceRegistryImpl.configureService(StandardServiceRegistryImpl.java:75)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:159)
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:131)
at org.hibernate.cfg.Configuration.buildTypeRegistrations(Configuration.java:1797)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1755)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1840)
at com.tesco.adapters.JBossDataGrid.testName(JBossDataGrid.java:27)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:77)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:195)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:63)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)
我以為我沒有要連接的數據庫。 這將如何工作? 有人告訴我必須使用JBoss Datagrid。 我知道https://docs.jboss.org/hibernate/ogm/3.0/reference/en-US/html_single/,但它太新了,幾個月前才問世。 可以做到嗎?
您是正確的,JBoss Data Grid使用了Hibernate Search,但是它僅用於索引和查詢定義:您不需要通過“傳統” Hibernate Session使用它。
要創建一個受您的域啟發的示例,要使用它,只需在Cache的配置中啟用索引。
@Test
public void testName() throws Exception {
Cache<Object, Object> c = new DefaultCacheManager("configuration-file.xml").getCache();
c.put("id", new ProductDG("ean", "desc", newArrayList("image1")));
//at this point your Product is already indexed (assuming you don't use transactions)
//Using the MatchAllDocsQuery we'll get a list of all instances:
CacheQuery query = searchManager.getQuery(new MatchAllDocsQuery(), ProductDG.class);
// Execute Query
List objectList = query.list();
for (Object prod : objectList)
System.out.println(prod);
}
您的最后一個問題是關於Hibernate OGM。 是的,也可以這樣做,但是您可能想要閱讀版本4的文檔:
https://docs.jboss.org/hibernate/ogm/4.0/reference/en-US/html_single/
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