java - Hibernate 搜索在索引中存储 byte[]

Question

我的 POJO 中有以下配置:

@Field(index = Index.NO, store = Store.YES)
private byte[] file;

当我启动我的 Apps 容器时，出现以下异常:

Caused by: org.hibernate.search.SearchException: Unable to guess FieldBridge for file at org.hibernate.search.bridge.BridgeFactory.guessType(BridgeFactory.java:249) at org.hibernate.search.engine.AbstractDocumentBuilder.bindFieldAnnotation(AbstractDocumentBuilder.java:707) at org.hibernate.search.engine.AbstractDocumentBuilder.checkForField(AbstractDocumentBuilder.java:568) at org.hibernate.search.engine.AbstractDocumentBuilder.initializeMemberLevelAnnotations(AbstractDocumentBuilder.java:436) at org.hibernate.search.engine.AbstractDocumentBuilder.initializeClass(AbstractDocumentBuilder.java:383) at org.hibernate.search.engine.AbstractDocumentBuilder.checkForIndexedEmbedded(AbstractDocumentBuilder.java:631) at org.hibernate.search.engine.AbstractDocumentBuilder.initializeMemberLevelAnnotations(AbstractDocumentBuilder.java:440) at org.hibernate.search.engine.AbstractDocumentBuilder.initializeClass(AbstractDocumentBuilder.java:383) at org.hibernate.search.engine.AbstractDocumentBuilder.(AbstractDocumentBuilder.java:134) at org.hibernate.search.engine.DocumentBuilderIndexedEntity.(DocumentBuilderIndexedEntity.java:178) at org.hibernate.search.spi.SearchFactoryBuilder.initDocumentBuilders(SearchFactoryBuilder.java:375) at org.hibernate.search.spi.SearchFactoryBuilder.buildNewSearchFactory(SearchFactoryBuilder.java:262) at org.hibernate.search.spi.SearchFactoryBuilder.buildSearchFactory(SearchFactoryBuilder.java:144) at org.hibernate.search.event.FullTextIndexEventListener.initialize(FullTextIndexEventListener.java:151) at org.hibernate.event.EventListeners$1.processListener(EventListeners.java:198) at org.hibernate.event.EventListeners.processListeners(EventListeners.java:181) at org.hibernate.event.EventListeners.initializeListeners(EventListeners.java:194) ... 41 more

如何在 Hibernate Search (Lucene) 索引中存储字节数组？

Answer 1

您需要一个 field bridge .

例如:

@Field(index = Index.NO, store = Store.YES)
@FieldBridge(impl = MyFieldBridge.class)
private byte[] file;


//The file bridge
public class MyFieldBridge implements StringBridge {

    @Override
    public String objectToString(final Object object) {

        byte[] file = (byte[]) object;

        return MagicFileUtil.getTextContent(file)
    }
}