Example usage for javax.persistence.metamodel Attribute getJavaMember

Introduction

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

Prototype

java.lang.reflect.Member getJavaMember();

Source Link

Document

Return the java.lang.reflect.Member for the represented attribute.

Usage

From source file:com.eclecticlogic.pedal.dm.internal.MetamodelUtil.java

/**
 * @param attribute JPA metamodel attribute.
 * @param entity Entity to set the value on.
 * @param value Value to set.//w  ww  .  j  av  a 2 s  .c  o  m
 */
public static <E extends Serializable, T extends Serializable> void set(Attribute<? super E, T> attribute,
        E entity, T value) {
    Member member = attribute.getJavaMember();
    if (member instanceof Field) {
        Field field = (Field) member;
        field.setAccessible(true);
        try {
            field.set(entity, value);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    } else if (member instanceof Method) {
        PropertyDescriptor pd = BeanUtils.findPropertyForMethod((Method) member);
        if (pd.getWriteMethod() != null) {
            pd.getWriteMethod().setAccessible(true);
            try {
                pd.getWriteMethod().invoke(entity, value);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        } else {
            throw new RuntimeException(
                    "No setter for " + attribute.getName() + " in " + entity.getClass().getName());
        }
    } else {
        throw new RuntimeException("Failed to set " + attribute.getName() + " of type "
                + member.getClass().getName() + " in entity " + entity.getClass().getName());
    }
}

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

public static <T> Object getValue(T example, Attribute<? super T, ?> attr) {
    try {// www .  j a  v a  2 s . c  o  m
        if (attr.getJavaMember() instanceof Method) {
            return ReflectionUtils.invokeMethod((Method) attr.getJavaMember(), example);
        } else {
            return ReflectionUtils.getField((Field) attr.getJavaMember(), example);
        }
    } catch (Exception e) {
        throw propagate(e);
    }
}

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

/**
 * Gets the mappedBy value from an attribute
 * @param attribute attribute//from w w w .j a  v a 2s .  co m
 * @return mappedBy value or null if none.
 */
public static String getMappedBy(Attribute<?, ?> attribute) {
    String mappedBy = null;

    if (attribute.isAssociation()) {
        Annotation[] annotations = null;
        Member member = attribute.getJavaMember();
        if (member instanceof Field) {
            annotations = ((Field) member).getAnnotations();
        } else if (member instanceof Method) {
            annotations = ((Method) member).getAnnotations();
        }

        for (Annotation a : annotations) {
            if (a.annotationType().equals(OneToMany.class)) {
                mappedBy = ((OneToMany) a).mappedBy();
                break;
            } else if (a.annotationType().equals(ManyToMany.class)) {
                mappedBy = ((ManyToMany) a).mappedBy();
                break;
            } else if (a.annotationType().equals(OneToOne.class)) {
                mappedBy = ((OneToOne) a).mappedBy();
                break;
            }
        }
    }

    return "".equals(mappedBy) ? null : mappedBy;
}

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From source file:com.impetus.kundera.utils.KunderaCoreUtils.java

/**
 * recursively populate all the fields present in partition key
 * //w  w w . j  ava  2s.  co m
 * @param embeddedAttributes
 * @param metaModel
 * @param embeddedIdFields
 */
private static void populateEmbeddedIdFields(Set<Attribute> embeddedAttributes, MetamodelImpl metaModel,
        Set<String> embeddedIdFields) {
    for (Attribute attribute : embeddedAttributes) {
        if (!ReflectUtils.isTransientOrStatic((Field) attribute.getJavaMember())) {
            if (metaModel.isEmbeddable(attribute.getJavaType())) {
                EmbeddableType embeddable = metaModel.embeddable(attribute.getJavaType());
                populateEmbeddedIdFieldsUtil(embeddable.getAttributes(), metaModel, embeddedIdFields);
            }
        }
    }
}

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From source file:com.impetus.kundera.utils.KunderaCoreUtils.java

private static void populateEmbeddedIdFieldsUtil(Set<Attribute> embeddedAttributes, MetamodelImpl metaModel,
        Set<String> embeddedIdFields) {
    for (Attribute attribute : embeddedAttributes) {
        if (!ReflectUtils.isTransientOrStatic((Field) attribute.getJavaMember())) {
            if (metaModel.isEmbeddable(attribute.getJavaType())) {
                EmbeddableType embeddable = metaModel.embeddable(attribute.getJavaType());
                populateEmbeddedIdFieldsUtil(embeddable.getAttributes(), metaModel, embeddedIdFields);
            } else {
                String columnName = ((AbstractAttribute) attribute).getJPAColumnName();
                embeddedIdFields.add(columnName);
            }//from   w w w  .jav a  2 s .  c o  m
        }
    }
}

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From source file:com.impetus.kundera.metadata.MetadataUtils.java

/**
 * Creates the columns field map./* w w  w.j  a  va  2  s  . c  om*/
 * 
 * @param m
 *            the m
 * @param superColumn
 *            the super column
 * @return the map
 */
public static Map<String, Field> createColumnsFieldMap(EntityMetadata m, EmbeddableType superColumn) {
    Map<String, Field> columnNameToFieldMap = new HashMap<String, Field>();

    Set<Attribute> attributes = superColumn.getAttributes();
    for (Attribute column : attributes) {
        columnNameToFieldMap.put(((AbstractAttribute) column).getJPAColumnName(),
                (Field) column.getJavaMember());
    }
    return columnNameToFieldMap;
}

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From source file:com.impetus.kundera.metadata.MetadataUtils.java

/**
 * Checks whether an entity with given metadata contains a collection field
 * /* www.  ja  va  2  s  .c o  m*/
 * @param m
 * @return
 */
public static boolean containsBasicElementCollectionField(final EntityMetadata m,
        final KunderaMetadata kunderaMetadata) {
    Metamodel metaModel = kunderaMetadata.getApplicationMetadata().getMetamodel(m.getPersistenceUnit());
    EntityType entityType = metaModel.entity(m.getEntityClazz());
    Iterator<Attribute> iter = entityType.getAttributes().iterator();
    while (iter.hasNext()) {
        Attribute attr = iter.next();

        if (attr.isCollection() && !attr.isAssociation()
                && isBasicElementCollectionField((Field) attr.getJavaMember())) {
            return true;
        }
    }
    return false;
}

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From source file:com.impetus.kundera.metadata.MetadataUtils.java

private static void getEmbeddableType(EntityMetadata m, Map<String, Field> columnNameToFieldMap,
        Map<String, Field> superColumnNameToFieldMap, final KunderaMetadata kunderaMetadata) {
    Metamodel metaModel = kunderaMetadata.getApplicationMetadata().getMetamodel(m.getPersistenceUnit());

    EntityType entityType = metaModel.entity(m.getEntityClazz());

    Set attributes = entityType.getAttributes();
    Iterator<Attribute> iter = attributes.iterator();
    while (iter.hasNext()) {
        Attribute attribute = iter.next();
        if (((MetamodelImpl) metaModel).isEmbeddable(((AbstractAttribute) attribute).getBindableJavaType())) {
            superColumnNameToFieldMap.put(((AbstractAttribute) attribute).getJPAColumnName(),
                    (Field) attribute.getJavaMember());
            if (columnNameToFieldMap != null) {
                getAttributeOfEmbedddable(columnNameToFieldMap, metaModel, attribute);
            }/*from www  .  jav a2 s  .  com*/

        } else {
            if (columnNameToFieldMap != null) {
                columnNameToFieldMap.put(((AbstractAttribute) attribute).getJPAColumnName(),
                        (Field) attribute.getJavaMember());
            }
        }
    }
}

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From source file:com.impetus.kundera.metadata.MetadataUtils.java

private static void getAttributeOfEmbedddable(Map<String, Field> columnNameToFieldMap, Metamodel metaModel,
        Attribute attribute) {/*w  ww  .j  av a  2  s . co m*/
    EmbeddableType embeddable = metaModel.embeddable(((AbstractAttribute) attribute).getBindableJavaType());

    Iterator<Attribute> embeddableIter = embeddable.getAttributes().iterator();
    while (embeddableIter.hasNext()) {
        Attribute embedAttrib = embeddableIter.next();

        // Reason is to avoid in case embeddable attribute within
        // embeddable.
        if (!((MetamodelImpl) metaModel).isEmbeddable(embedAttrib.getJavaType())) {
            columnNameToFieldMap.put(((AbstractAttribute) embedAttrib).getJPAColumnName(),
                    (Field) embedAttrib.getJavaMember());
        } else {
            getAttributeOfEmbedddable(columnNameToFieldMap, metaModel, embedAttrib);
        }
    }
}

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

/**
 * Gets the column meta data./*from   w ww . j a  v  a2s. c om*/
 *
 * @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;
}

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