Example usage for javax.persistence.metamodel Attribute getName

Introduction

In this page you can find the example usage for javax.persistence.metamodel Attribute getName.

Prototype

String getName();

Source Link

Document

Return the name of the attribute.

Usage

From source file:org.querybyexample.jpa.JpaUtil.java

public static <T, A> SingularAttribute<? super T, A> attribute(ManagedType<? super T> mt,
        Attribute<? super T, A> attr) {
    return mt.getSingularAttribute(attr.getName(), attr.getJavaType());
}

---

From source file:org.querybyexample.jpa.JpaUtil.java

public static <T> SingularAttribute<? super T, String> stringAttribute(ManagedType<? super T> mt,
        Attribute<? super T, ?> attr) {
    return mt.getSingularAttribute(attr.getName(), String.class);
}

---

From source file:org.querybyexample.jpa.JpaUtil.java

public static String getPath(List<Attribute<?, ?>> attributes) {
    StringBuilder builder = new StringBuilder();
    for (Attribute<?, ?> attribute : attributes) {
        builder.append(attribute.getName()).append(".");
    }/*  w  w  w.  j a  v  a 2  s .  com*/
    return builder.substring(0, builder.length() - 1);
}

---

From source file:org.querybyexample.jpa.JpaUtil.java

/**
 * Convert the passed propertyPath into a JPA path.
 * <p>/*www .  ja v a2  s .com*/
 * Note: JPA will do joins if the property is in an associated entity.
 */
@SuppressWarnings("unchecked")
public static <E, F> Path<F> getPath(Root<E> root, List<Attribute<?, ?>> attributes) {
    Path<?> path = root;
    for (Attribute<?, ?> attribute : attributes) {
        boolean found = false;
        // handle case when order on already fetched attribute
        for (Fetch<E, ?> fetch : root.getFetches()) {
            if (attribute.getName().equals(fetch.getAttribute().getName()) && (fetch instanceof Join<?, ?>)) {
                path = (Join<E, ?>) fetch;
                found = true;
                break;
            }
        }
        for (Join<E, ?> join : root.getJoins()) {
            if (attribute.getName().equals(join.getAttribute().getName())) {
                path = join;
                found = true;
                break;
            }
        }
        if (!found) {
            path = path.get(attribute.getName());
        }
    }
    return (Path<F>) path;
}

---

From source file:org.jdal.dao.jpa.JpaUtils.java

/**
 * Initialize a entity. /*from   www  .j a v a 2 s .c om*/
 * @param em entity manager to use
 * @param entity entity to initialize
 * @param depth max depth on recursion
 */
@SuppressWarnings({ "rawtypes", "unchecked" })
public static void initialize(EntityManager em, Object entity, int depth) {
    // return on nulls, depth = 0 or already initialized objects
    if (entity == null || depth == 0) {
        return;
    }

    PersistenceUnitUtil unitUtil = em.getEntityManagerFactory().getPersistenceUnitUtil();
    EntityType entityType = em.getMetamodel().entity(entity.getClass());
    Set<Attribute> attributes = entityType.getDeclaredAttributes();

    Object id = unitUtil.getIdentifier(entity);

    if (id != null) {
        Object attached = em.find(entity.getClass(), unitUtil.getIdentifier(entity));

        for (Attribute a : attributes) {
            if (!unitUtil.isLoaded(entity, a.getName())) {
                if (a.isCollection()) {
                    intializeCollection(em, entity, attached, a, depth);
                } else if (a.isAssociation()) {
                    intialize(em, entity, attached, a, depth);
                }
            }
        }
    }
}

---

From source file:com.github.gekoh.yagen.util.MappingUtils.java

private static void appendNonCollectionReferences(Set<Attribute> attributes, Map<String, Field> fields,
        String context) {/*from www.  ja v  a  2 s  . com*/
    for (Attribute attribute : attributes) {
        String attributeName = context + attribute.getName();

        if (attribute instanceof SingularAttribute
                && ((SingularAttribute) attribute).getType() instanceof EmbeddableType) {
            appendNonCollectionReferences(
                    ((EmbeddableType) ((SingularAttribute) attribute).getType()).getAttributes(), fields,
                    attributeName + ".");
        } else if (!attribute.isCollection()
                && attribute.getPersistentAttributeType() != Attribute.PersistentAttributeType.BASIC
                && attribute.getDeclaringType() instanceof EntityType) {
            fields.put(attributeName, (Field) attribute.getJavaMember());
        }
    }
}

---

From source file:org.jdal.dao.jpa.JpaUtils.java

/** 
 * Initialize entity attribute//from   www  .ja v a2s  . c o m
 * @param em
 * @param entity
 * @param a
 * @param depth
 */
@SuppressWarnings("rawtypes")
private static void intialize(EntityManager em, Object entity, Object attached, Attribute a, int depth) {
    Object value = PropertyAccessorFactory.forDirectFieldAccess(attached).getPropertyValue(a.getName());
    if (!em.getEntityManagerFactory().getPersistenceUnitUtil().isLoaded(value)) {
        em.refresh(value);
    }

    PropertyAccessorFactory.forDirectFieldAccess(entity).setPropertyValue(a.getName(), value);

    initialize(em, value, depth - 1);
}

---

From source file:de.micromata.genome.jpa.metainf.MetaInfoUtils.java

/**
 * To entity meta data.//from   w  w w.ja v a 2s .  c o m
 *
 * @param mt the mt
 * @return the entity metadata
 */
private static EntityMetadata toEntityMetaData(ManagedType<?> mt) {
    EntityMetadataBean ret = new EntityMetadataBean();
    ret.setJavaType(mt.getJavaType());
    if (mt instanceof EntityType) {
        EntityType ift = (EntityType) mt;
        ret.setDatabaseName(ift.getName());
    }
    // TODO RK delete propDesc
    List<PropertyDescriptor> propDescs = Arrays.asList(PropertyUtils.getPropertyDescriptors(ret.getJavaType()));
    Set<?> attr = mt.getAttributes();
    for (Object oa : attr) {

        Attribute<?, ?> at = (Attribute<?, ?>) oa;
        Optional<PropertyDescriptor> pdo = propDescs.stream().filter((el) -> el.getName().equals(at.getName()))
                .findFirst();
        ColumnMetadata colm = getColumnMetaData(ret, mt.getJavaType(), at, pdo);
        if (colm != null) {
            ret.getColumns().put(colm.getName(), colm);
        }
    }
    /// EntityType.getName() is not correct.
    Table[] tabs = mt.getJavaType().getAnnotationsByType(Table.class);
    if (tabs != null && tabs.length > 0) {
        for (Table tab : tabs) {
            if (StringUtils.isNotBlank(tab.name()) == true) {
                ret.setDatabaseName(tab.name());
                break;
            }
        }
    }
    return ret;
}

---

From source file:de.micromata.genome.jpa.metainf.MetaInfoUtils.java

/**
 * Gets the column meta data./* w  ww .  j av a  2  s.com*/
 *
 * @param entity the entity
 * @param entityClass the entity class
 * @param at the at
 * @param pdo the pdo
 * @return the column meta data
 */
public static ColumnMetadata getColumnMetaData(EntityMetadataBean entity, Class<?> entityClass,
        Attribute<?, ?> at, Optional<PropertyDescriptor> pdo) {
    ColumnMetadataBean ret = new ColumnMetadataBean(entity);
    ret.setName(at.getName());
    ret.setJavaType(at.getJavaType());
    ret.setAssociation(at.isAssociation());
    ret.setCollection(at.isCollection());

    if (at instanceof PluralAttribute) {
        PluralAttribute pa = (PluralAttribute) at;
        Type eltype = pa.getElementType();
        CollectionType coltype = pa.getCollectionType();
    }

    Member jm = at.getJavaMember();
    // TODO maybe handle this.
    at.getPersistentAttributeType();
    if ((jm instanceof AccessibleObject) == false) {
        LOG.warn("Column " + at.getName() + " ha no valid Java Member");
        return ret;
    }
    AccessibleObject ao = (AccessibleObject) jm;
    getGetterSetter(entityClass, ao, pdo, ret);
    ret.setAnnotations(getFieldAndMemberAnnots(entityClass, ao));
    if (ret.getAnnotations().stream().filter((anot) -> anot.getClass() == Transient.class).count() > 0) {
        return null;
    }
    Column colc = ao.getAnnotation(Column.class);
    if (colc == null) {
        ret.setMaxLength(255);
        return ret;
    }
    String name = colc.name();
    if (StringUtils.isEmpty(name) == true) {
        ret.setDatabaseName(ret.getName());
    } else {
        ret.setDatabaseName(name);
    }
    ret.setMaxLength(colc.length());
    ret.setUnique(colc.unique());
    ret.setColumnDefinition(colc.columnDefinition());
    ret.setInsertable(colc.insertable());
    ret.setNullable(colc.nullable());
    ret.setPrecision(colc.precision());
    ret.setScale(colc.scale());
    return ret;
}

---

From source file:org.jdal.dao.jpa.JpaUtils.java

/**
 * Initialize collection/*  w  ww.ja  v  a2  s.  com*/
 * @param em
 * @param entity
 * @param a
 * @param i
 */
@SuppressWarnings("rawtypes")
private static void intializeCollection(EntityManager em, Object entity, Object attached, Attribute a,
        int depth) {
    PropertyAccessor accessor = PropertyAccessorFactory.forDirectFieldAccess(attached);
    Collection c = (Collection) accessor.getPropertyValue(a.getName());

    for (Object o : c)
        initialize(em, o, depth - 1);

    PropertyAccessorFactory.forDirectFieldAccess(entity).setPropertyValue(a.getName(), c);
}

---

• «
• 1
• 2
• 3
• 4
• »