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Java PluralAttributePath类代码示例

本文整理汇总了Java中org.hibernate.ejb.criteria.path.PluralAttributePath的典型用法代码示例。如果您正苦于以下问题:Java PluralAttributePath类的具体用法?Java PluralAttributePath怎么用?Java PluralAttributePath使用的例子?那么, 这里精选的类代码示例或许可以为您提供帮助。


PluralAttributePath类属于org.hibernate.ejb.criteria.path包,在下文中一共展示了PluralAttributePath类的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: getFieldPath

import org.hibernate.ejb.criteria.path.PluralAttributePath; //导入依赖的package包/类
public FieldPath getFieldPath(From root, String fullPropertyName) {
    String[] pieces = fullPropertyName.split("\\.");
    List<String> associationPath = new ArrayList<String>();
    List<String> basicProperties = new ArrayList<String>();
    int j = 0;
    for (String piece : pieces) {
        checkPiece: {
            if (j == 0) {
                Path path = root.get(piece);
                if (path instanceof PluralAttributePath) {
                    associationPath.add(piece);
                    break checkPiece;
                }
            }
            basicProperties.add(piece);
        }
        j++;
    }
    FieldPath fieldPath = new FieldPath()
        .withAssociationPath(associationPath)
        .withTargetPropertyPieces(basicProperties);

    return fieldPath;
}
 
开发者ID:passion1014,项目名称:metaworks_framework,代码行数:25,代码来源:FieldPathBuilder.java

示例2: getPath

import org.hibernate.ejb.criteria.path.PluralAttributePath; //导入依赖的package包/类
@SuppressWarnings({"rawtypes", "unchecked", "serial"})
    public Path getPath(From root, FieldPath fieldPath, final CriteriaBuilder builder) {
        FieldPath myFieldPath = fieldPath;
        if (!StringUtils.isEmpty(fieldPath.getTargetProperty())) {
            myFieldPath = getFieldPath(root, fieldPath.getTargetProperty());
        }
        From myRoot = root;
        for (String pathElement : myFieldPath.getAssociationPath()) {
            myRoot = myRoot.join(pathElement);
        }
        Path path = myRoot;
        
        for (int i = 0; i < myFieldPath.getTargetPropertyPieces().size(); i++) {
            String piece = myFieldPath.getTargetPropertyPieces().get(i);
            
            if (path.getJavaType().isAnnotationPresent(Embeddable.class)) {
                String original = ((SingularAttributePath) path).getAttribute().getDeclaringType().getJavaType().getName() + "." + ((SingularAttributePath) path).getAttribute().getName() + "." + piece;
                String copy = path.getJavaType().getName() + "." + piece;
                copyCollectionPersister(original, copy, ((CriteriaBuilderImpl) builder).getEntityManagerFactory().getSessionFactory());
            }
            
            try {
                path = path.get(piece);
            } catch (IllegalArgumentException e) {
                // We weren't able to resolve the requested piece, likely because it's in a polymoprhic version
                // of the path we're currently on. Let's see if there's any polymoprhic version of our class to
                // use instead.
        	    EntityManagerFactoryImpl em = ((CriteriaBuilderImpl) builder).getEntityManagerFactory();
        	    Metamodel mm = em.getMetamodel();
        	    boolean found = false;
        	    
        	    Class<?>[] polyClasses = dynamicDaoHelper.getAllPolymorphicEntitiesFromCeiling(
        	            path.getJavaType(), em.getSessionFactory(), true, true);
        	    
        	    for (Class<?> clazz : polyClasses) {
            		ManagedType mt = mm.managedType(clazz);
            		try {
            		    Attribute attr = mt.getAttribute(piece);
            		    if (attr != null) {
                		    Root additionalRoot = criteria.from(clazz);
                		    restrictions.add(builder.equal(path, additionalRoot));
                		    path = additionalRoot.get(piece);
                		    found = true;
                		    break;
            		    }
            		} catch (IllegalArgumentException e2) {
            		    // Do nothing - we'll try the next class and see if it has the attribute
            		}
        	    }
        	    
        	    if (!found) {
        	        throw new IllegalArgumentException("Could not resolve requested attribute against path, including" +
        	        		" known polymorphic versions of the root", e);
        	    }
            }
            
            if (path.getParentPath() != null && path.getParentPath().getJavaType().isAnnotationPresent(Embeddable.class) && path instanceof PluralAttributePath) {
                //We need a workaround for this problem until it is resolved in Hibernate (loosely related to and likely resolved by https://hibernate.atlassian.net/browse/HHH-8802)
                //We'll throw a specialized exception (and handle in an alternate flow for calls from BasicPersistenceModule)
                throw new CriteriaConversionException(String.format("Unable to create a JPA criteria Path through an @Embeddable object to a collection that resides therein (%s)", fieldPath.getTargetProperty()), fieldPath);
//                //TODO this code should work, but there still appear to be bugs in Hibernate's JPA criteria handling for lists
//                //inside Embeddables
//                Class<?> myClass = ((PluralAttributePath) path).getAttribute().getClass().getInterfaces()[0];
//                //we don't know which version of "join" to call, so we'll let reflection figure it out
//                try {
//                    From embeddedJoin = myRoot.join(((SingularAttributePath) path.getParentPath()).getAttribute());
//                    Method join = embeddedJoin.getClass().getMethod("join", myClass);
//                    path = (Path) join.invoke(embeddedJoin, ((PluralAttributePath) path).getAttribute());
//                } catch (Exception e) {
//                    throw new RuntimeException(e);
//                }
            }
        }

        return path;
    }
 
开发者ID:passion1014,项目名称:metaworks_framework,代码行数:77,代码来源:FieldPathBuilder.java


注:本文中的org.hibernate.ejb.criteria.path.PluralAttributePath类示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。