Package org.eclipse.persistence.mappings

Examples of org.eclipse.persistence.mappings.ForeignReferenceMapping

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    }

    @Override
    public Class<?> getAttributeClass() {
        if (mapping.isForeignReferenceMapping()) {
            ForeignReferenceMapping refMapping = (ForeignReferenceMapping)mapping;
            if (refMapping.isCollectionMapping()) {
                return ((CollectionMapping)refMapping).getContainerPolicy().getContainerClass();
            }
            if (refMapping.usesIndirection()) {
                return ValueHolderInterface.class;
            }
            return refMapping.getReferenceClass();
        }
        else {
            if (mapping.getAttributeClassification() == null) {
                return ClassConstants.OBJECT;
            }
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                    xdm = xdesc.getMappingForAttributeName(attributeName);
                }
                dm.setAttributeAccessor(new XRDynamicEntityAccessor(dm));
                if (xdm != null) {
                    if (dm.isForeignReferenceMapping()) {
                        ForeignReferenceMapping frm = (ForeignReferenceMapping)dm;
                        if (frm.usesIndirection() && frm.getIndirectionPolicy().getClass().
                            isAssignableFrom(BasicIndirectionPolicy.class)) {
                            xdm.setAttributeAccessor(new XRDynamicEntityVHAccessor(dm));
                        }
                        else {
                            // no indirection or indirection that is transparent enough (!) to work
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        ObjectBuilder objectBuilder = getDescriptor().getObjectBuilder();
        if (objectBuilder.hasJoinedAttributes()) {
            List mappingJoinedAttributes = objectBuilder.getJoinedAttributes();
            if (!hasJoinedAttributeExpressions()) {
                for (int i = 0; i < mappingJoinedAttributes.size(); i++) {
                    ForeignReferenceMapping mapping = (ForeignReferenceMapping) mappingJoinedAttributes.get(i);
                    if(fetchGroupAttributes == null || fetchGroupAttributes.contains(mapping.getAttributeName())) {
                        addAndPrepareJoinedMapping(mapping, session);
                    }
                }
            } else {
                for (int i = 0; i < mappingJoinedAttributes.size(); i++) {
                    ForeignReferenceMapping mapping = (ForeignReferenceMapping) mappingJoinedAttributes.get(i);
                    if (!isAttributeExpressionJoined(mapping)) {
                        if(fetchGroupAttributes == null || fetchGroupAttributes.contains(mapping.getAttributeName())) {
                            addAndPrepareJoinedMapping(mapping, session);
                        }
                    }
                }
            }
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                raq.checkDescriptor(activeSession);
                ClassDescriptor descriptor = raq.getDescriptor();
                Expression expression = raq.getExpressionBuilder();
                while (tokenizer.hasMoreTokens()){
                    String token = tokenizer.nextToken();
                    ForeignReferenceMapping frMapping = null;
                    DatabaseMapping mapping = descriptor.getObjectBuilder().getMappingForAttributeName(token);
                    if (mapping == null){
                        throw QueryException.queryHintNavigatedNonExistantRelationship(query, QueryHints.BATCH, valueToApply, previousToken + "." + token);
                    } else if (!mapping.isForeignReferenceMapping()){
                        throw QueryException.queryHintNavigatedIllegalRelationship(query, QueryHints.BATCH, valueToApply, previousToken + "." + token);
                    } else {
                        frMapping = (ForeignReferenceMapping)mapping;
                    }
                    descriptor = frMapping.getReferenceDescriptor();
                    if (frMapping.isCollectionMapping()){
                        expression = expression.anyOf(token);
                    } else {
                        expression = expression.get(token);
                    }
                    previousToken = token;
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                olrq.checkDescriptor(activeSession);
                ClassDescriptor descriptor = olrq.getDescriptor();
                Expression expression = olrq.getExpressionBuilder();
                while (tokenizer.hasMoreTokens()){
                    String token = tokenizer.nextToken();
                    ForeignReferenceMapping frMapping = null;
                    DatabaseMapping mapping = descriptor.getObjectBuilder().getMappingForAttributeName(token);
                    if (mapping == null){
                        throw QueryException.queryHintNavigatedNonExistantRelationship(query, QueryHints.FETCH, valueToApply, previousToken + "." + token);
                    } else if (!mapping.isForeignReferenceMapping()){
                        throw QueryException.queryHintNavigatedIllegalRelationship(query, QueryHints.FETCH, valueToApply, previousToken + "." + token);
                    } else {
                        frMapping = (ForeignReferenceMapping)mapping;
                    }
                    descriptor = frMapping.getReferenceDescriptor();
                    if (frMapping.isCollectionMapping()){
                        expression = expression.anyOf(token);
                    } else {
                        expression = expression.get(token);
                    }
                    previousToken = token;
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                olrq.checkDescriptor(activeSession);
                ClassDescriptor descriptor = olrq.getDescriptor();
                Expression expression = olrq.getExpressionBuilder();
                while (tokenizer.hasMoreTokens()){
                    String token = tokenizer.nextToken();
                    ForeignReferenceMapping frMapping = null;
                    DatabaseMapping mapping = descriptor.getObjectBuilder().getMappingForAttributeName(token);
                    if (mapping == null){
                        throw QueryException.queryHintNavigatedNonExistantRelationship(query, QueryHints.LEFT_FETCH, valueToApply, previousToken + "." + token);
                    } else if (!mapping.isForeignReferenceMapping()){
                        throw QueryException.queryHintNavigatedIllegalRelationship(query, QueryHints.LEFT_FETCH, valueToApply, previousToken + "." + token);
                    } else {
                        frMapping = (ForeignReferenceMapping)mapping;
                    }
                    descriptor = frMapping.getReferenceDescriptor();
                    if (frMapping.isCollectionMapping()){
                        expression = expression.anyOfAllowingNone(token);
                    } else {
                        expression = expression.getAllowingNull(token);
                    }
                    previousToken = token;
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                value = Short.MIN_VALUE;
            } else if (primClass == ClassConstants.PBYTE) {
                value = Byte.MIN_VALUE;
            }
        } else if (mapping.isForeignReferenceMapping()) {
            ForeignReferenceMapping refMapping = (ForeignReferenceMapping) mapping;

            if (refMapping.usesIndirection() && refMapping.getIndirectionPolicy() instanceof BasicIndirectionPolicy) {
                value = new ValueHolder(value);
            } else if (refMapping.isCollectionMapping()) {
                value = ((CollectionMapping) refMapping).getContainerPolicy().containerInstance();
            }
        } else if (mapping.isAggregateObjectMapping()) {
            value = mapping.getReferenceDescriptor().getObjectBuilder().buildNewInstance();
        }
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    }

    @Override
    public Class<?> getAttributeClass() {
        if (getMapping().isForeignReferenceMapping()) {
            ForeignReferenceMapping refMapping = (ForeignReferenceMapping) getMapping();

            if (refMapping.isCollectionMapping()) {
                return ((CollectionMapping) refMapping).getContainerPolicy().getContainerClass();
            }
            if (refMapping.usesIndirection()) {
                return ValueHolderInterface.class;
            }
            return refMapping.getReferenceClass();
        } else {
            if (getMapping().getAttributeClassification() == null) {
                return ClassConstants.OBJECT;
            }
            return getMapping().getAttributeClassification();
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                    xdm = xdesc.getMappingForAttributeName(attributeName);
                }
                dm.setAttributeAccessor(new XRDynamicEntityAccessor(attributeName, idx));
                if (xdm != null) {
                    if (dm.isForeignReferenceMapping()) {
                        ForeignReferenceMapping frm = (ForeignReferenceMapping)dm;
                        if (frm.usesIndirection() && frm.getIndirectionPolicy().getClass().
                            isAssignableFrom(BasicIndirectionPolicy.class)) {
                            xdm.setAttributeAccessor(new XRDynamicEntityVHAccessor(attributeName, idx));
                        }
                        else {
                            // no indirection or indirection that is transparent enough (!) to work
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            }
            this.addJoinedAttribute(baseExpression.getName());
           
            // Ignore nested
            if ((objectExpression.getBaseExpression() == objectExpression.getBuilder()) && objectExpression.getMapping().isForeignReferenceMapping()) {
                ForeignReferenceMapping mapping = (ForeignReferenceMapping)objectExpression.getMapping();

                // A nested query must be built to pass to the descriptor that looks like the real query execution would.
                ObjectLevelReadQuery nestedQuery = mapping.prepareNestedJoins(this, readQuery, session);
                if (nestedQuery != null) {
                    // Register the nested query to be used by the mapping for all the objects.
                    getJoinedMappingQueries_().put(mapping, nestedQuery);
                }
                if (mapping.isCollectionMapping()){
                    ((CollectionMapping)mapping).getContainerPolicy().addNestedJoinsQueriesForMapKey(this, readQuery, session);
                }
            }
        }
    }
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Related Classes of org.eclipse.persistence.mappings.ForeignReferenceMapping

  • org.eclipse.persistence.annotations.BatchFetchType
  • org.eclipse.persistence.descriptors.ClassDescriptor
  • org.eclipse.persistence.descriptors.partitioning.PartitioningPolicy
  • org.eclipse.persistence.dynamic.DynamicTypeBuilder
  • org.eclipse.persistence.expressions.Expression
  • org.eclipse.persistence.expressions.ExpressionBuilder
  • org.eclipse.persistence.indirection.ValueHolder
  • org.eclipse.persistence.internal.dynamic.DynamicPropertiesInitializatonPolicy
  • org.eclipse.persistence.internal.dynamic.DynamicTypeInstantiationPolicy
  • org.eclipse.persistence.internal.dynamic.ValuesAccessor
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