Example usage for javax.persistence.metamodel SingularAttribute getName

Introduction

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

Prototype

String getName();

Source Link

Document

Return the name of the attribute.

Usage

From source file:org.apache.click.extras.jpa.JpaForm.java

/**
 * Applies the <tt>ClassMetadata</tt> validation database meta data to the
 * form fields./*from w w w .ja v a2s.  c o m*/
 * <p/>
 * The field validation attributes include:
 * <ul>
 * <li>required - is a mandatory field and cannot be null</li>
 * </ul>
 */
protected void applyMetaData() {
    if (metaDataApplied) {
        return;
    }

    try {
        Class valueClass = Class.forName(classField.getValue());

        /*
        String classname = getClassname(valueClass);
                
        Metamodel metadata =
        ((HibernateEntityManagerFactory) getEntityManagerFactory()).getSessionFactory().getMetamodel(classname);
                
        String[] propertyNames = metadata.getPropertyNames();
                
        boolean[] propertyNullability = metadata.getPropertyNullability();
                 
        for (int i = 0; i < propertyNames.length; i++) {
        Field field = getField(propertyNames[i]);
        if (field != null) {
            field.setRequired(propertyNullability[i]);
        }
        }
         */
        Metamodel classMetadata = getEntityManager().getMetamodel();
        EntityType entityType = classMetadata.entity(valueClass);

        Set<SingularAttribute> attrs = entityType.getAttributes();

        for (SingularAttribute a : attrs) {
            Field field = getField(a.getName());
            if (field != null) {
                field.setRequired(a.isOptional());
            }
        }
    } catch (ClassNotFoundException cnfe) {
        throw new RuntimeException(cnfe);
    }

    metaDataApplied = true;
}

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From source file:org.apache.openejb.util.proxy.QueryProxy.java

private void remove(final Object[] args, final Class<?> returnType) {
    if (args != null && args.length == 1 && returnType.equals(Void.TYPE)) {
        Object entity = args[0];/*from   w w  w  .j a v  a2s  . c  o  m*/
        if (!em.contains(entity)) { // reattach the entity if possible
            final Class<?> entityClass = entity.getClass();
            final EntityType<? extends Object> et = em.getMetamodel().entity(entityClass);

            if (!et.hasSingleIdAttribute()) {
                throw new IllegalArgumentException("Dynamic EJB doesn't manage IdClass yet");
            }

            SingularAttribute<?, ?> id = null; // = et.getId(entityClass); doesn't work with openJPA
            for (final SingularAttribute<?, ?> sa : et.getSingularAttributes()) {
                if (sa.isId()) {
                    id = sa;
                    break;
                }
            }
            if (id == null) {
                throw new IllegalArgumentException("id field not found");
            }
            final String idName = id.getName();

            final Object idValue;
            try {
                idValue = BeanUtils.getProperty(entity, idName);
            } catch (final InvocationTargetException e) {
                throw new IllegalArgumentException("can't invoke to get entity id");
            } catch (final NoSuchMethodException e) {
                throw new IllegalArgumentException("can't find the method to get entity id");
            } catch (final IllegalAccessException e) {
                throw new IllegalArgumentException("can't access field/method to get entity id");
            }

            entity = em.getReference(et.getJavaType(), idValue);
            if (entity == null) {
                throw new IllegalArgumentException("entity " + entity + " is not managed and can't be found.");
            }
        }
        em.remove(entity);
    } else {
        throw new IllegalArgumentException(REMOVE_NAME + " should have only one parameter and return void");
    }
}

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From source file:org.batoo.jpa.core.impl.criteria.join.AbstractFrom.java

/**
 * {@inheritDoc}/* www .ja v a 2  s. co m*/
 * 
 */
@Override
public <Y> AbstractJoin<X, Y> join(SingularAttribute<? super X, Y> attribute, JoinType jt) {
    return this.join(attribute.getName(), jt);
}

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From source file:org.batoo.jpa.core.impl.criteria.join.FetchParentImpl.java

/**
 * {@inheritDoc}/* ww w. jav  a 2 s .  c o m*/
 * 
 */
@Override
public final <Y> FetchImpl<X, Y> fetch(SingularAttribute<? super X, Y> attribute, JoinType jt) {
    return this.fetch(attribute.getName(), jt);
}

---

From source file:org.batoo.jpa.core.impl.model.EntityTypeImpl.java

/**
 * Returns if the method is an id method.
 * /* w  ww  .j a  v  a 2 s  . com*/
 * @param method
 *            the method
 * @return if the method is an id method
 * 
 * @since 2.0.0
 */
public boolean isIdMethod(Method method) {
    if (this.idMethods.containsKey(method)) { // if known id method, let go
        return true;
    }

    final String methodName = method.getName();
    if (methodName.startsWith("get") && (methodName.length() > 3)) { // check if id method
        for (final SingularAttribute<? super X, ?> attribute : this.getSingularAttributes()) {
            final String getterName = "get" + StringUtils.capitalize(attribute.getName());
            if (attribute.isId() && getterName.equals(method.getName())) {
                this.idMethods.put(method, method);
                return true;
            }
        }
    }

    return false;
}

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From source file:org.easy.criteria.CriteriaComposer.java

/**
 * Adds the attribute to having clause of the entity
 * // w ww .j av a 2s  . c o m
 * @param function
 *            - {@link AggregateFunction}
 * @param attribute
 *            - SingularAttribute of the entity for which this search was
 *            created.
 * @param nOperator
 *            - {@link NegationOperator}
 * @param cOperator
 *            - {@link ComparisonOperator}
 * @param value
 *            - value to match with the attribute.
 * @param lOperator
 *            - {@link LogicOperator} logic operator that will be applied
 *            with next having.
 * @return
 */
@SuppressWarnings({ "rawtypes", "unchecked" })
public <V> CriteriaComposer<E> having(AggregateFunction function, SingularAttribute<? super E, V> attribute,
        NegationOperator nOperator, ComparisonOperator cOperator, V value) {

    Preconditions.checkArgument(_selects.indexOf(new SelectContainer(attribute, "")) >= 0,
            "Unable to find related select clasue.");

    Preconditions.checkNotNull(function);
    Preconditions.checkNotNull(attribute);
    Preconditions.checkNotNull(nOperator);
    Preconditions.checkNotNull(cOperator);

    HavingContainer<E> havingContainer = new HavingContainer<E>(function, attribute, nOperator, cOperator,
            value);

    int index = _havings.indexOf(havingContainer);

    if (index >= 0)
        _havings.add(index, havingContainer);
    else
        _havings.add(havingContainer);

    log.debug("Adding having for " + attribute.getName() + " " + cOperator.toString() + " value "
            + value.toString());

    lastCallType = LastCallType.HAVING;

    return this;
}

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From source file:org.easy.criteria.CriteriaComposer.java

/**
 * Creates a singular join with the next entity.
 * //from w ww.  j  a  v a 2 s  .  c  om
 * @param <R>
 *            - The entity type to join with. (right side)
 * @param attribute
 *            - SingularAttribute of this entity that has reference to next
 *            entity
 * @return - Sub criteria for the next entity
 */
@SuppressWarnings("unchecked")
public <V> CriteriaComposer<V> join(JoinType joinType, SingularAttribute<? super E, V> attribute,
        CriteriaComposer<V> subCriteria) {
    Preconditions.checkNotNull(attribute);

    Class<V> classToJoin = attribute.getBindableJavaType();

    JoinContainer<E> join = new JoinContainer<E>(joinType, attribute);

    // Don't overwrite join
    if (_joins.containsKey(join))
        return (CriteriaComposer<V>) _joins.get(join);

    if (subCriteria == null)
        subCriteria = new CriteriaComposer<V>(classToJoin);

    _joins.put(join, subCriteria);

    log.debug("Addeding join " + joinType.toString() + " on " + classToJoin.getSimpleName() + " "
            + attribute.getName());

    return subCriteria;
}

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From source file:org.easy.criteria.CriteriaComposer.java

/**
 * @param attribute//w w  w  .ja va  2 s.c o m
 * @param ascending
 * @param rank
 *            - precedence order - should be greater then zero and should be
 *            unique across the entire graph. Subsequent occurrences of the
 *            attribute with the same ranked number will be ignored and will
 *            not be added into orderBy clause.
 * 
 */
public <V> CriteriaComposer<E> orderBy(SingularAttribute<? super E, V> attribute, boolean ascending, int rank) {

    Preconditions.checkArgument(rank > 0);
    Preconditions.checkNotNull(attribute);

    log.debug("Adding _orderBy for " + attribute.getName());

    OrderByContainer<E> orderByContainer = new OrderByContainer<E>(attribute, ascending, rank);

    int index = _orderBys.indexOf(orderByContainer);

    if (index > -0)
        _orderBys.add(index, orderByContainer);
    else
        _orderBys.add(orderByContainer);

    return this;
}

---

From source file:org.easy.criteria.CriteriaComposer.java

/**
 * @param function/*w w w. j  av a 2s.  com*/
 * @param attribute
 * @param alias
 * @return
 */
public <V> CriteriaComposer<E> select(AggregateFunction function, SingularAttribute<? super E, V> attribute,
        String alias) {
    Preconditions.checkNotNull(function);
    Preconditions.checkNotNull(attribute);

    if (alias == null || alias.trim().length() == 0)
        alias = function.toString().toLowerCase() + "." + this._entityClass.getSimpleName() + "."
                + attribute.getName();

    SelectContainer<E> selectContainer = new SelectContainer<E>(function, attribute, alias);

    int index = _selects.indexOf(selectContainer);

    if (index >= 0)
        _selects.add(index, selectContainer);
    else
        _selects.add(selectContainer);

    log.debug("Added select " + attribute.toString());

    return this;
}

---

From source file:org.easy.criteria.CriteriaComposer.java

/**
 * @param attribute/*from  w  ww  .ja v a 2 s  .  com*/
 * @param alias
 */
public <V> CriteriaComposer<E> select(SingularAttribute<? super E, V> attribute, String alias) {
    Preconditions.checkNotNull(attribute);

    if (alias == null || alias.trim().length() == 0)
        alias = this._entityClass.getSimpleName() + "." + attribute.getName();

    SelectContainer<E> selectContainer = new SelectContainer<E>(attribute, alias);

    // overwrite if exists.
    int index = _selects.indexOf(selectContainer);

    if (index >= 0)
        _selects.add(index, selectContainer);
    else
        _selects.add(selectContainer);

    log.debug("Added select for " + attribute.getName() + "with alias " + alias);

    return this;
}

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