Package javax.persistence.metamodel

Examples of javax.persistence.metamodel.Attribute

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                // Search the mappings for Id mappings
                for(DatabaseMapping aMapping : getDescriptor().getMappings()) {                   
                    if(aMapping.isDerivedIdMapping()) {
                        String attributeName = aMapping.getAttributeName();
                        // get the attribute Id (declared or not)
                        Attribute anAttribute = this.getAttribute(attributeName);
                        if(anAttribute != null) {
                            return this.getMetamodel().getType(anAttribute.getJavaType());
                        }
                       
                    }
                }
            }
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         *     attribute not found && no superType exists = false
         *   Recursive Case
         *     Exit(false) as soon as attribute is found in a superType - without continuing to the root
         *     continue as long as we find an attribute in the superType (essentially only MappedSuperclass parents)         
         **/
        Attribute anAttribute = this.getMembers().get(attributeName);
        ManagedTypeImpl<?> aSuperType = getManagedSuperType();       
       
        // Base Case: If we are at the root, check for the attribute and return results immediately
        if(null == aSuperType) {
            if(null == anAttribute && null != firstLevelAttribute) {
                return true;
            } else {
                // UC 1.3 (part of the else condition (anAttribute != null)) is handled by the return false in null != aSuperTypeAttribute
                // UC 1.4 (when caller is firstLevel) superType does not contain the attribute - check that the current attribute and the first differ
                if(null != anAttribute && anAttribute == firstLevelAttribute) {
                    return true;
                } else {
                    return false; // TODO: verify use case
                }
            }
        } else {           
           // Recursive Case: check hierarchy both if the immediate superclass is a MappedSuperclassType or EntityType
           Attribute aSuperTypeAttribute = aSuperType.getMembers().get(attributeName);
           // UC1.3 The immediate mappedSuperclass may have the attribute - we check it in the base case of the next recursive call
           if(null != aSuperTypeAttribute) {
               // return false immediately if a superType exists above the first level
               return false;
           } else {
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     * @param jt
     *            join type
     * @return the resulting fetch join
     */
    public <X, Y> Fetch<X, Y> fetch(String assocName, JoinType jt){
        Attribute attribute = this.managedType.getAttribute(assocName);
        if (attribute.isCollection()) {
            return fetch(((PluralAttribute)attribute), jt);
        }else{
            return fetch(((SingularAttribute)attribute), jt);
        }
    }
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        return new ExpressionImpl(this.metamodel, ClassConstants.CLASS,this.currentNode.type());
    }
   
    @Override
    public <Y> Path<Y> get(String attName) {
        Attribute attribute = this.managedType.getAttribute(attName);
        Join join;
        if (attribute.isCollection()) {
            if (!((PluralAttribute) attribute).getElementType().getPersistenceType().equals(PersistenceType.BASIC)) {
                if (((PluralAttribute) attribute).getCollectionType().equals(CollectionType.COLLECTION)) {
                    join = new CollectionJoinImpl<X, Y>(this, metamodel.type(((PluralAttribute) attribute).getBindableJavaType()), this.metamodel, ((PluralAttribute) attribute).getBindableJavaType(), this.currentNode.anyOf(attribute.getName()), (Bindable) attribute);
                } else if (((PluralAttribute) attribute).getCollectionType().equals(CollectionType.LIST)) {
                    join = new ListJoinImpl<X, Y>(this, metamodel.type(((PluralAttribute) attribute).getBindableJavaType()), this.metamodel, ((PluralAttribute) attribute).getBindableJavaType(), this.currentNode.anyOf(attribute.getName()), (Bindable) attribute);
                } else if (((PluralAttribute) attribute).getCollectionType().equals(CollectionType.SET)) {
                    join = new SetJoinImpl<X, Y>(this, metamodel.type(((PluralAttribute) attribute).getBindableJavaType()), this.metamodel, ((PluralAttribute) attribute).getBindableJavaType(), this.currentNode.anyOf(attribute.getName()), (Bindable) attribute);
                } else {
                    join = new MapJoinImpl(this, metamodel.type(((PluralAttribute) attribute).getBindableJavaType()), this.metamodel, ((PluralAttribute) attribute).getBindableJavaType(), this.currentNode.anyOf(attribute.getName()), (Bindable) attribute);
                }
            } else {
                if (((PluralAttribute) attribute).getCollectionType().equals(CollectionType.COLLECTION)) {
                    join = new BasicCollectionJoinImpl<X, Y>(this, this.metamodel, ((PluralAttribute) attribute).getBindableJavaType(), this.currentNode.anyOf(attribute.getName()), (Bindable) attribute);
                } else if (((PluralAttribute) attribute).getCollectionType().equals(CollectionType.LIST)) {
                    join = new BasicListJoinImpl<X, Y>(this, this.metamodel, ((PluralAttribute) attribute).getBindableJavaType(), this.currentNode.anyOf(attribute.getName()), (Bindable) attribute);
                } else if (((PluralAttribute) attribute).getCollectionType().equals(CollectionType.SET)) {
                    join = new BasicSetJoinImpl<X, Y>(this, this.metamodel, ((PluralAttribute) attribute).getBindableJavaType(), this.currentNode.anyOf(attribute.getName()), (Bindable) attribute);
                } else{
                    join = new BasicMapJoinImpl(this, this.metamodel, ((PluralAttribute) attribute).getBindableJavaType(), this.currentNode.anyOf(attribute.getName()), (Bindable) attribute);
                }
            }
        }else{
            Class clazz = ((SingularAttribute)attribute).getBindableJavaType();
            if (((SingularAttribute)attribute).getType().getPersistenceType().equals(PersistenceType.BASIC)){
                return new PathImpl<Y>(this, this.metamodel, clazz, this.currentNode.get(attribute.getName()), (Bindable)attribute);
            }else{
                join = new JoinImpl(this, this.metamodel.type(clazz), this.metamodel, clazz, this.currentNode.get(attribute.getName()), (Bindable)attribute);
            }
        }
        this.joins.add(join);
        return join;
    }
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    public <X, Y> Join<X, Y> join(String attributeName) {
        return join(attributeName, JoinType.INNER);
    }

    public <X, Y> Join<X, Y> join(String attributeName, JoinType jt) {
        Attribute attribute = this.managedType.getAttribute(attributeName);
        if (attribute.isCollection()) {
            org.eclipse.persistence.expressions.Expression node;
            if (jt.equals(JoinType.LEFT)) {
                node = this.currentNode.anyOf(((PluralAttribute) attribute).getName());
            } else if (jt.equals(JoinType.RIGHT)) {
                throw new UnsupportedOperationException(ExceptionLocalization.buildMessage("RIGHT_JOIN_NOT_SUPPORTED"));
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            }
            if ( safeMapping.isVersioned() && property == safeMapping.getVersion() ) {
              // skip the version property, it was already handled previously.
              continue;
            }
            final Attribute attribute = attributeFactory.buildAttribute( jpa2Mapping, property );
            if ( attribute != null ) {
              jpa2Mapping.getBuilder().addAttribute( attribute );
            }
          }
          jpa2Mapping.lock();
          populateStaticMetamodel( jpa2Mapping );
        }
        finally {
                    LOG.trace("Completed entity [" + safeMapping.getEntityName() + "]");
        }
      }
      else if ( MappedSuperclass.class.isAssignableFrom( mapping.getClass() ) ) {
        @SuppressWarnings( "unchecked" )
        final MappedSuperclass safeMapping = (MappedSuperclass) mapping;
                LOG.trace("Starting mapped superclass [" + safeMapping.getMappedClass().getName() + "]");
        try {
          final MappedSuperclassTypeImpl<?> jpa2Mapping = mappedSuperclassByMappedSuperclassMapping.get(
              safeMapping
          );
          applyIdMetadata( safeMapping, jpa2Mapping );
          applyVersionAttribute( safeMapping, jpa2Mapping );
          Iterator<Property> properties = safeMapping.getDeclaredPropertyIterator();
          while ( properties.hasNext() ) {
            final Property property = properties.next();
            if ( safeMapping.isVersioned() && property == safeMapping.getVersion() ) {
              // skip the version property, it was already handled previously.
              continue;
            }
            final Attribute attribute = attributeFactory.buildAttribute( jpa2Mapping, property );
            if ( attribute != null ) {
              jpa2Mapping.getBuilder().addAttribute( attribute );
            }
          }
          jpa2Mapping.lock();
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         *     attribute not found && no superType exists = false
         *   Recursive Case
         *     Exit(false) as soon as attribute is found in a superType - without continuing to the root
         *     continue as long as we find an attribute in the superType (essentially only MappedSuperclass parents)         
         **/
        Attribute anAttribute = this.getMembers().get(attributeName);
        ManagedTypeImpl<?> aSuperType = getManagedSuperType();       
       
        // Base Case: If we are at the root, check for the attribute and return results immediately
        if(null == aSuperType) { // 315287: the superType will be null if the root is a BasicType (non-Entity|non-MappedSuperclass)
            if(null == anAttribute && null != firstLevelAttribute) {
                return true;
            } else {
                // UC 1.3 (part of the else condition (anAttribute != null)) is handled by the return false in null != aSuperTypeAttribute
                // UC 1.4 (when caller is firstLevel) superType does not contain the attribute - check that the current attribute and the first differ
                if(null != anAttribute && anAttribute == firstLevelAttribute) {
                    return true;
                } else {
                    return false;
                }
            }
        } else {           
           // Recursive Case: check hierarchy both if the immediate superclass is a MappedSuperclassType or EntityType
           Attribute aSuperTypeAttribute = aSuperType.getMembers().get(attributeName);
           // UC1.3 The immediate mappedSuperclass may have the attribute - we check it in the base case of the next recursive call
           if(null != aSuperTypeAttribute) {
               // return false immediately if a superType exists above the first level
               return false;
           } else {
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    @Override
    public Class<?> validate(Class<?> parent, String property, Class<?> propertyType) {
        try {
            ManagedType managedType = metamodel.managedType(parent);
            Attribute attribute = managedType.getAttribute(property);
            if (attribute instanceof PluralAttribute) {
                return ((PluralAttribute)attribute).getElementType().getJavaType();
            } else {
                return Primitives.wrap(attribute.getJavaType());
            }
        } catch (IllegalArgumentException e) {
            return null;
        }
    }
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         *     attribute not found && no superType exists = false
         *   Recursive Case
         *     Exit(false) as soon as attribute is found in a superType - without continuing to the root
         *     continue as long as we find an attribute in the superType (essentially only MappedSuperclass parents)         
         **/
        Attribute anAttribute = this.getMembers().get(attributeName);
        ManagedTypeImpl<?> aSuperType = getManagedSuperType();       
       
        // Base Case: If we are at the root, check for the attribute and return results immediately
        if(null == aSuperType) {
            if(null == anAttribute && null != firstLevelAttribute) {
                return true;
            } else {
                // UC 1.3 (part of the else condition (anAttribute != null)) is handled by the return false in null != aSuperTypeAttribute
                // UC 1.4 (when caller is firstLevel) superType does not contain the attribute - check that the current attribute and the first differ
                if(null != anAttribute && anAttribute == firstLevelAttribute) {
                    return true;
                } else {
                    return false;
                }
            }
        } else {           
           // Recursive Case: check hierarchy both if the immediate superclass is a MappedSuperclassType or EntityType
           Attribute aSuperTypeAttribute = aSuperType.getMembers().get(attributeName);
           // UC1.3 The immediate mappedSuperclass may have the attribute - we check it in the base case of the next recursive call
           if(null != aSuperTypeAttribute) {
               // return false immediately if a superType exists above the first level
               return false;
           } else {
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     * @param jt
     *            join type
     * @return the resulting fetch join
     */
    public <T, Y> Fetch<T, Y> fetch(String assocName, JoinType jt){
        Attribute attribute = this.managedType.getAttribute(assocName);
        if (attribute.isCollection()) {
            return fetch(((PluralAttribute)attribute), jt);
        }else{
            return fetch(((SingularAttribute)attribute), jt);
        }
    }
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