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.github.gekoh.yagen.util.MappingUtils.java

private static void appendNonCollectionReferences(Set<Attribute> attributes, Map<String, Field> fields,
        String context) {/*from w ww  .j a  v a  2s. c  o  m*/
    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());
        }
    }
}

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From source file:com.dbs.sdwt.jpa.JpaUtil.java

public <T> Object getValue(T example, Attribute<? super T, ?> attr) {
    try {//  ww  w. j a va2  s.  c  om
        if (attr.getJavaMember() instanceof Method) {
            return ((Method) attr.getJavaMember()).invoke(example);
        } else {
            return ((Field) attr.getJavaMember()).get(example);
        }
    } catch (Exception e) {
        throw propagate(e);
    }
}

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From source file:com.impetus.client.neo4j.GraphEntityMapper.java

/**
 * Creates a Map containing all properties (and their values) for a given
 * relationship entity/*from w ww. ja va 2 s  .  c  o m*/
 * 
 * @param entityMetadata
 * @param targetEntityMetadata
 * @param relationshipProperties
 * @param relationshipEntity
 */
public Map<String, Object> createRelationshipProperties(EntityMetadata entityMetadata,
        EntityMetadata targetEntityMetadata, Object relationshipEntity) {
    MetamodelImpl metaModel = (MetamodelImpl) kunderaMetadata.getApplicationMetadata()
            .getMetamodel(entityMetadata.getPersistenceUnit());
    EntityType entityType = metaModel.entity(relationshipEntity.getClass());
    Map<String, Object> relationshipProperties = new HashMap<String, Object>();

    Set<Attribute> attributes = entityType.getSingularAttributes();
    for (Attribute attribute : attributes) {
        Field f = (Field) attribute.getJavaMember();
        if (!f.getType().equals(entityMetadata.getEntityClazz())
                && !f.getType().equals(targetEntityMetadata.getEntityClazz())) {
            String relPropertyName = ((AbstractAttribute) attribute).getJPAColumnName();
            Object value = PropertyAccessorHelper.getObject(relationshipEntity, f);
            relationshipProperties.put(relPropertyName, toNeo4JProperty(value));
        }
    }
    return relationshipProperties;
}

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From source file:com.impetus.client.neo4j.GraphEntityMapper.java

/**
 * Populates Node properties from Entity object
 * /*from   w ww .ja  v a  2 s .  c o  m*/
 * @param entity
 * @param m
 * @param node
 */
private void populateNodeProperties(Object entity, EntityMetadata m, Node node) {
    MetamodelImpl metaModel = (MetamodelImpl) kunderaMetadata.getApplicationMetadata()
            .getMetamodel(m.getPersistenceUnit());
    EntityType entityType = metaModel.entity(m.getEntityClazz());

    // Iterate over entity attributes
    Set<Attribute> attributes = entityType.getSingularAttributes();
    for (Attribute attribute : attributes) {
        Field field = (Field) attribute.getJavaMember();

        // Set Node level properties
        if (!attribute.isCollection() && !attribute.isAssociation()
                && !((SingularAttribute) attribute).isId()) {
            String columnName = ((AbstractAttribute) attribute).getJPAColumnName();
            Object value = PropertyAccessorHelper.getObject(entity, field);
            if (value != null) {
                node.setProperty(columnName, toNeo4JProperty(value));
            }
        }
    }
}

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From source file:com.impetus.client.neo4j.GraphEntityMapper.java

/**
 * Creates a Map containing all properties (and their values) for a given
 * entity// w ww  .  j a  va2 s.  c om
 * 
 * @param entity
 * @param m
 * @return
 */
public Map<String, Object> createNodeProperties(Object entity, EntityMetadata m) {
    Map<String, Object> props = new HashMap<String, Object>();

    MetamodelImpl metaModel = (MetamodelImpl) kunderaMetadata.getApplicationMetadata()
            .getMetamodel(m.getPersistenceUnit());

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

    // Iterate over entity attributes
    Set<Attribute> attributes = entityType.getSingularAttributes();
    for (Attribute attribute : attributes) {
        Field field = (Field) attribute.getJavaMember();

        // Set Node level properties
        if (!attribute.isCollection() && !attribute.isAssociation()) {

            String columnName = ((AbstractAttribute) attribute).getJPAColumnName();
            Object value = PropertyAccessorHelper.getObject(entity, field);
            if (value != null) {
                props.put(columnName, toNeo4JProperty(value));
            }
        }
    }
    return props;
}

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From source file:com.impetus.client.rdbms.query.RDBMSEntityReader.java

/**
 * Gets the sql query from jpa./*from ww  w. j a v  a2  s .  c  o  m*/
 * 
 * @param entityMetadata
 *            the entity metadata
 * @param relations
 *            the relations
 * @param primaryKeys
 *            the primary keys
 * @return the sql query from jpa
 */
public String getSqlQueryFromJPA(EntityMetadata entityMetadata, List<String> relations,
        Set<String> primaryKeys) {
    ApplicationMetadata appMetadata = kunderaMetadata.getApplicationMetadata();
    Metamodel metaModel = appMetadata.getMetamodel(entityMetadata.getPersistenceUnit());

    if (jpaQuery != null) {
        String query = appMetadata.getQuery(jpaQuery);
        boolean isNative = kunderaQuery != null ? kunderaQuery.isNative() : false;

        if (isNative) {
            return query != null ? query : jpaQuery;
        }
    }

    // Suffixing the UNDERSCORE instead of prefix as Oracle 11g complains
    // about invalid characters error while executing the request.
    String aliasName = entityMetadata.getTableName() + "_";

    StringBuilder queryBuilder = new StringBuilder("Select ");

    EntityType entityType = metaModel.entity(entityMetadata.getEntityClazz());
    Set<Attribute> attributes = entityType.getAttributes();
    for (Attribute field : attributes) {
        if (!field.isAssociation() && !field.isCollection()
                && !((Field) field.getJavaMember()).isAnnotationPresent(ManyToMany.class)
                && !((Field) field.getJavaMember()).isAnnotationPresent(Transient.class)
                && !((MetamodelImpl) metaModel)
                        .isEmbeddable(((AbstractAttribute) field).getBindableJavaType())) {
            queryBuilder.append(aliasName);
            queryBuilder.append(".");
            queryBuilder.append(((AbstractAttribute) field).getJPAColumnName());
            queryBuilder.append(", ");
        }
    }

    // Handle embedded columns, add them to list.
    Map<String, EmbeddableType> embeddedColumns = ((MetamodelImpl) metaModel)
            .getEmbeddables(entityMetadata.getEntityClazz());
    for (EmbeddableType embeddedCol : embeddedColumns.values()) {
        Set<Attribute> embeddedAttributes = embeddedCol.getAttributes();
        for (Attribute column : embeddedAttributes) {
            queryBuilder.append(aliasName);
            queryBuilder.append(".");
            queryBuilder.append(((AbstractAttribute) column).getJPAColumnName());
            queryBuilder.append(", ");
        }
    }

    if (relations != null) {
        for (String relation : relations) {
            Relation rel = entityMetadata.getRelation(entityMetadata.getFieldName(relation));
            String r = MetadataUtils.getMappedName(entityMetadata, rel, kunderaMetadata);
            if (!((AbstractAttribute) entityMetadata.getIdAttribute()).getJPAColumnName()
                    .equalsIgnoreCase(r != null ? r : relation) && rel != null
                    && !rel.getProperty().isAnnotationPresent(ManyToMany.class)
                    && !rel.getProperty().isAnnotationPresent(OneToMany.class)
                    && (rel.getProperty().isAnnotationPresent(OneToOne.class)
                            && StringUtils.isBlank(rel.getMappedBy())
                            || rel.getProperty().isAnnotationPresent(ManyToOne.class))) {
                queryBuilder.append(aliasName);
                queryBuilder.append(".");
                queryBuilder.append(r != null ? r : relation);
                queryBuilder.append(", ");
            }
        }
    }

    // Remove last ","
    queryBuilder.deleteCharAt(queryBuilder.lastIndexOf(","));

    queryBuilder.append(" From ");
    if (entityMetadata.getSchema() != null && !entityMetadata.getSchema().isEmpty()) {
        queryBuilder.append(entityMetadata.getSchema() + ".");
    }
    queryBuilder.append(entityMetadata.getTableName());
    queryBuilder.append(" ");
    queryBuilder.append(aliasName);
    // add conditions
    if (filter != null) {
        queryBuilder.append(" Where ");
    }

    // Append conditions
    onCondition(entityMetadata, (MetamodelImpl) metaModel, primaryKeys, aliasName, queryBuilder, entityType);

    return queryBuilder.toString();
}

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From source file:com.impetus.client.neo4j.GraphEntityMapper.java

/**
 * Populates a {@link Relationship} with attributes of a given relationship
 * entity object <code>relationshipObj</code>
 * /*  ww w. ja va  2s .c o m*/
 * @param entityMetadata
 * @param targetNodeMetadata
 * @param relationship
 * @param relationshipObj
 */
public void populateRelationshipProperties(EntityMetadata entityMetadata, EntityMetadata targetNodeMetadata,
        Relationship relationship, Object relationshipObj) {
    MetamodelImpl metaModel = (MetamodelImpl) kunderaMetadata.getApplicationMetadata()
            .getMetamodel(entityMetadata.getPersistenceUnit());
    EntityType entityType = metaModel.entity(relationshipObj.getClass());

    Set<Attribute> attributes = entityType.getSingularAttributes();
    for (Attribute attribute : attributes) {
        Field f = (Field) attribute.getJavaMember();
        if (!f.getType().equals(entityMetadata.getEntityClazz())
                && !f.getType().equals(targetNodeMetadata.getEntityClazz())) {
            EntityMetadata relMetadata = KunderaMetadataManager.getEntityMetadata(kunderaMetadata,
                    relationshipObj.getClass());
            String columnName = ((AbstractAttribute) attribute).getJPAColumnName();
            if (metaModel.isEmbeddable(relMetadata.getIdAttribute().getBindableJavaType())
                    && ((SingularAttribute) attribute).isId()) {
                // Populate Embedded attribute value into relationship
                Object id = PropertyAccessorHelper.getId(relationshipObj, relMetadata);
                Object serializedIdValue = serializeIdAttributeValue(relMetadata, metaModel, id);
                relationship.setProperty(columnName, serializedIdValue);

                // Populate attributes of embedded fields into relationship
                Set<Attribute> embeddableAttributes = metaModel
                        .embeddable(relMetadata.getIdAttribute().getBindableJavaType()).getSingularAttributes();
                for (Attribute embeddableAttribute : embeddableAttributes) {
                    String embeddedColumn = ((AbstractAttribute) embeddableAttribute).getJPAColumnName();
                    if (embeddedColumn == null)
                        embeddedColumn = embeddableAttribute.getName();
                    Object value = PropertyAccessorHelper.getObject(id,
                            (Field) embeddableAttribute.getJavaMember());

                    if (value != null)
                        relationship.setProperty(embeddedColumn, value);
                }
            } else {
                Object value = PropertyAccessorHelper.getObject(relationshipObj, f);
                relationship.setProperty(columnName, toNeo4JProperty(value));
            }

        }
    }

}

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From source file:com.impetus.client.neo4j.GraphEntityMapper.java

/**
 * //w w  w. ja v  a  2 s.  c om
 * Converts a {@link Node} instance to entity object
 */
public Object getEntityFromNode(Node node, EntityMetadata m) {
    MetamodelImpl metaModel = (MetamodelImpl) kunderaMetadata.getApplicationMetadata()
            .getMetamodel(m.getPersistenceUnit());
    EntityType entityType = metaModel.entity(m.getEntityClazz());

    // Iterate over, entity attributes
    Set<Attribute> attributes = entityType.getSingularAttributes();

    Object entity = null;

    try {
        // entity = m.getEntityClazz().newInstance();

        for (Attribute attribute : attributes) {
            Field field = (Field) attribute.getJavaMember();
            String columnName = ((AbstractAttribute) attribute).getJPAColumnName();

            // Set Entity level properties
            if (metaModel.isEmbeddable(m.getIdAttribute().getBindableJavaType())
                    && m.getIdAttribute().getJavaType().equals(field.getType())) {
                Object idValue = deserializeIdAttributeValue(m, (String) node.getProperty(columnName));
                if (idValue != null) {
                    entity = initialize(m, entity);
                    PropertyAccessorHelper.set(entity, field, idValue);
                }
            } else if (!attribute.isCollection() && !attribute.isAssociation()
                    && !((AbstractAttribute) m.getIdAttribute()).getJPAColumnName().equals(columnName)) {
                Object columnValue = node.getProperty(columnName, null);
                if (columnValue != null) {
                    entity = initialize(m, entity);
                    PropertyAccessorHelper.set(entity, field, fromNeo4JObject(columnValue, field));
                }
            }
        }

        if (entity != null && !metaModel.isEmbeddable(m.getIdAttribute().getBindableJavaType())) {
            Object rowKey = node.getProperty(((AbstractAttribute) m.getIdAttribute()).getJPAColumnName());
            if (rowKey != null) {
                PropertyAccessorHelper.setId(entity, m,
                        fromNeo4JObject(rowKey, (Field) m.getIdAttribute().getJavaMember()));
            }
        }
    } catch (NotFoundException e) {
        log.info(e.getMessage());
        return null;
    }

    return entity;
}

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From source file:com.impetus.client.neo4j.GraphEntityMapper.java

/**
 * //from w ww  .ja va 2s  . co  m
 * Converts a {@link Relationship} object to corresponding entity object
 */
public Object getEntityFromRelationship(Relationship relationship, EntityMetadata topLevelEntityMetadata,
        Relation relation) {
    EntityMetadata relationshipEntityMetadata = KunderaMetadataManager.getEntityMetadata(kunderaMetadata,
            relation.getMapKeyJoinClass());

    MetamodelImpl metaModel = (MetamodelImpl) kunderaMetadata.getApplicationMetadata()
            .getMetamodel(relationshipEntityMetadata.getPersistenceUnit());
    EntityType entityType = metaModel.entity(relationshipEntityMetadata.getEntityClazz());

    // Iterate over, entity attributes
    Set<Attribute> attributes = entityType.getSingularAttributes();

    Object entity = null;

    try {
        // entity =
        // relationshipEntityMetadata.getEntityClazz().newInstance();

        for (Attribute attribute : attributes) {
            Field field = (Field) attribute.getJavaMember();
            String columnName = ((AbstractAttribute) attribute).getJPAColumnName();

            // Set Entity level properties
            if (metaModel.isEmbeddable(relationshipEntityMetadata.getIdAttribute().getBindableJavaType())
                    && relationshipEntityMetadata.getIdAttribute().getJavaType().equals(field.getType())) {
                Object idValue = deserializeIdAttributeValue(relationshipEntityMetadata,
                        (String) relationship.getProperty(columnName));
                if (idValue != null) {
                    entity = initialize(relationshipEntityMetadata, entity);
                    PropertyAccessorHelper.set(entity, field, idValue);
                }
            } else if (!attribute.isCollection() && !attribute.isAssociation()
                    && !field.getType().equals(topLevelEntityMetadata.getEntityClazz())
                    && !field.getType().equals(relation.getTargetEntity())) {
                Object value = relationship.getProperty(columnName, null);
                if (value != null) {
                    entity = initialize(relationshipEntityMetadata, entity);
                    PropertyAccessorHelper.set(entity, field, fromNeo4JObject(value, field));
                }
            }
        }

        if (entity != null
                && !metaModel.isEmbeddable(relationshipEntityMetadata.getIdAttribute().getBindableJavaType())) {
            Object rowKey = relationship.getProperty(
                    ((AbstractAttribute) relationshipEntityMetadata.getIdAttribute()).getJPAColumnName());
            if (rowKey != null) {
                PropertyAccessorHelper.setId(entity, relationshipEntityMetadata, fromNeo4JObject(rowKey,
                        (Field) relationshipEntityMetadata.getIdAttribute().getJavaMember()));
            }
        }
    } catch (NotFoundException e) {
        log.info(e.getMessage());
        return null;
    }

    return entity;
}

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From source file:com.impetus.client.cassandra.query.ResultIterator.java

/**
 * Id value in byte arr./*from   ww  w . j a v a2 s .  com*/
 * 
 * @return the byte[]
 */
private byte[] idValueInByteArr() {
    Object entity = results.get(results.size() - 1);
    Object id = PropertyAccessorHelper.getId(entity, entityMetadata);
    String idName = ((AbstractAttribute) entityMetadata.getIdAttribute()).getJPAColumnName();
    Class idClazz = ((AbstractAttribute) entityMetadata.getIdAttribute()).getBindableJavaType();
    MetamodelImpl metaModel = (MetamodelImpl) kunderaMetadata.getApplicationMetadata()
            .getMetamodel(entityMetadata.getPersistenceUnit());

    EmbeddableType keyObj = null;
    ByteBuffer bytes = null;

    // if the key attribute is composite
    if (metaModel.isEmbeddable(entityMetadata.getIdAttribute().getBindableJavaType())) {
        keyObj = metaModel.embeddable(entityMetadata.getIdAttribute().getBindableJavaType());
        Field embeddedField = getPartitionKeyField();
        Attribute partitionKey = keyObj.getAttribute(embeddedField.getName());
        Object partitionKeyValue = PropertyAccessorHelper.getObject(id, (Field) partitionKey.getJavaMember());
        bytes = CassandraUtilities.toBytes(partitionKeyValue, (Field) partitionKey.getJavaMember());
    } else {
        bytes = query.getBytesValue(idName, entityMetadata, id);
    }
    return bytes.array();
}

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