hibernate - 独立模式导出 Hibernate Validator 集成

Question

如此处所述：

http://devmint.blogspot.com/2013/02/hibernate-schema-export-with-hibernate.html

SchemaExport 不再识别验证器特定的注释。

如何将方法“injectBeanValidationConstraintToDdlTranslator”翻译为 Hibernate 5.2？

配置文件不再存在，如此处所述：

Configuration.generateSchemaCreationScript() 在 Hibernate 5 中去了哪里

谢谢。

标签： hibernateddlschemaexport

Answer 1

我发现以下方法可以在 Hibernate 5.1 的模式导出期间实现对验证器属性的评估。

添加一个新的类CustomMetadataContributor：

package de.test;

import org.hibernate.MappingException;
import org.hibernate.boot.internal.ClassLoaderAccessImpl;
import org.hibernate.boot.registry.StandardServiceRegistry;
import org.hibernate.boot.registry.classloading.spi.ClassLoaderService;
import org.hibernate.boot.spi.ClassLoaderAccess;
import org.hibernate.boot.spi.InFlightMetadataCollector;
import org.hibernate.boot.spi.MetadataContributor;
import org.hibernate.cfg.SecondPass;
import org.hibernate.dialect.Dialect;
import org.hibernate.engine.config.spi.ConfigurationService;
import org.hibernate.engine.jdbc.spi.JdbcServices;
import org.jboss.jandex.IndexView;

import javax.validation.Validation;
import javax.validation.ValidatorFactory;
import java.lang.reflect.Method;
import java.util.Collection;
import java.util.Map;

public class CustomMetadataContributor implements MetadataContributor {

    public void contribute(InFlightMetadataCollector metadataCollector, IndexView jandexIndex){
        metadataCollector.addSecondPass(new SecondPass() {
            @Override
            public void doSecondPass(final Map persistentClasses) throws MappingException {
                try {
                    Method applyDDL = Class.forName("org.hibernate.cfg.beanvalidation.TypeSafeActivator") //
                            .getMethod("applyRelationalConstraints", ValidatorFactory.class, Collection.class, Map.class, Dialect.class, ClassLoaderAccess.class);
                    applyDDL.setAccessible(true);
                    StandardServiceRegistry serviceRegistry = metadataCollector.getMetadataBuildingOptions().getServiceRegistry();
                    applyDDL.invoke(null, Validation.buildDefaultValidatorFactory() ,metadataCollector.getEntityBindings(), serviceRegistry.getService( ConfigurationService.class ).getSettings(), serviceRegistry.getService( JdbcServices.class ).getDialect(),new ClassLoaderAccessImpl(serviceRegistry.getService( ClassLoaderService.class )));
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
            }
        });
    }
}

此外，您需要在路径中添加一个文本文件（没有文件扩展名）

META-INF/services/org.hibernate.boot.spi.MetadataContributor

包含

de.test.CustomMetadataContributor

而de.test需要替换为您的包名称。