Package org.eclipse.persistence.internal.identitymaps

Examples of org.eclipse.persistence.internal.identitymaps.CacheId

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        if (reference == null) {
            // if reference is null, create a new instance and set it on the resolver
            reference = new Reference(this, srcObject, referenceClass, new HashMap(), container);
            resolver.addReference(reference);
        }
        CacheId primaryKeys;
        if(null == referenceClass || ClassConstants.OBJECT == referenceClass) {
            HashMap primaryKeyMap = reference.getPrimaryKeyMap();
            CacheId pks = (CacheId) primaryKeyMap.get(null);
            if (pks == null){
                Object[] pkValues = new Object[1];
                pks = new CacheId(pkValues);
                primaryKeyMap.put(null, pks);
            }
            if(usesSingleNode) {
                for (StringTokenizer stok = new StringTokenizer((String) object); stok.hasMoreTokens();) {
                    pks.add(stok.nextToken());
                    reference = resolver.getReference(this, srcObject, xmlField);
                    if (reference == null) {
                        // if reference is null, create a new instance and set it on the resolver
                        reference = new Reference(this, srcObject, referenceClass, new HashMap(), container);
                        resolver.addReference(reference);
                    }
                    primaryKeyMap = reference.getPrimaryKeyMap();
                    pks = (CacheId) primaryKeyMap.get(null);
                    if (pks == null){
                        Object[] pkValues = new Object[1];
                        pks = new CacheId(pkValues);
                        primaryKeyMap.put(null, pks);
                    }
                }
            } else {
                pks.add(object);
            }
        } else {
            XMLField tgtFld = (XMLField) getSourceToTargetKeyFieldAssociations().get(xmlField);
            String tgtXPath = tgtFld.getXPath();
            HashMap primaryKeyMap = reference.getPrimaryKeyMap();
            CacheId pks = (CacheId) primaryKeyMap.get(tgtXPath);
            ClassDescriptor descriptor = session.getClassDescriptor(referenceClass);
            if (pks == null){
                pks = new CacheId(new Object[0]);
                primaryKeyMap.put(tgtXPath, pks);
            }
            Class type = descriptor.getTypedField(tgtFld).getType();
            XMLConversionManager xmlConversionManager = (XMLConversionManager) session.getDatasourcePlatform().getConversionManager();
            if(usesSingleNode) {
                for (StringTokenizer stok = new StringTokenizer((String) object); stok.hasMoreTokens();) {
                    Object value = xmlConversionManager.convertObject(stok.nextToken(), type);
                    if (value != null) {
                        pks.add(value);
                    }
                    reference = resolver.getReference(this, srcObject, xmlField);
                    if (reference == null) {
                        // if reference is null, create a new instance and set it on the resolver
                        reference = new Reference(this, srcObject, referenceClass, new HashMap(), container);
                        resolver.addReference(reference);
                    }
                    primaryKeyMap = reference.getPrimaryKeyMap();
                    pks = (CacheId) primaryKeyMap.get(null);
                    if (pks == null){
                        pks = new CacheId(new Object[0]);
                        primaryKeyMap.put(tgtXPath, pks);
                    }                   
                }
            } else {
                Object value = xmlConversionManager.convertObject(object, type);
                if (value != null) {
                    pks.add(value);
                }
            }
        }
    }
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            if (getDescriptor().getCacheKeyType() == CacheKeyType.ID_VALUE) {
                return fieldValue;
            }
            primaryKey[index] = fieldValue;
        }
        return new CacheId(primaryKey);
    }
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                    primaryKey = null;
                } else {
                    primaryKey = ((List)id).get(0);
                }
            } else {
                primaryKey = new CacheId(((List)id).toArray());
            }
        } else if (id instanceof CacheId) {
            primaryKey = id;
        } else {
            CMPPolicy policy = descriptor.getCMPPolicy();
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     */
    private void createPKVectorsFromMap(Reference reference, XMLCollectionReferenceMapping mapping) {
        ClassDescriptor referenceDescriptor = mapping.getReferenceDescriptor();
        Vector pks = new Vector();
        if(null == referenceDescriptor) {
            CacheId pkVals = (CacheId) reference.getPrimaryKeyMap().get(null);
            if(null == pkVals) {
                return;
            }
            for(int x=0;x<pkVals.getPrimaryKey().length; x++) {
                Object[] values = new Object[1];
                values[0] = pkVals.getPrimaryKey()[x];
                pks.add(new CacheId(values));
            }
        } else{
            List pkFields = referenceDescriptor.getPrimaryKeyFieldNames();
            if (pkFields.isEmpty()) {
                return;
            }

            boolean init = true;

            // for each primary key field name
            for (Iterator pkFieldNameIt = pkFields.iterator(); pkFieldNameIt.hasNext(); ) {
                CacheId pkVals = (CacheId) reference.getPrimaryKeyMap().get(pkFieldNameIt.next());

                if (pkVals == null) {
                    return;
                }
                // initialize the list of pk vectors once and only once
                if (init) {
                    for (int i=0; i<pkVals.getPrimaryKey().length; i++) {
                        pks.add(new CacheId(new Object[0]));
                    }
                    init = false;
                }

                // now add each value for the current target key to it's own vector
                for (int i=0; i<pkVals.getPrimaryKey().length; i++) {
                    Object val = pkVals.getPrimaryKey()[i];
                    ((CacheId)pks.get(i)).add(val);
                }
            }
        }
        reference.setPrimaryKey(pks);
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                }
                // loop over each pk vector and get object from cache - then add to collection and set on object
                Object value = null;
                if(!mapping.isWriteOnly()) {
                    for (Iterator pkIt = ((Vector)reference.getPrimaryKey()).iterator(); pkIt.hasNext();) {
                        CacheId primaryKey = (CacheId) pkIt.next();

                        if (userSpecifiedResolver != null) {
                            final Callable c;
                            try {
                                if (primaryKey.getPrimaryKey().length > 1) {
                                    Map<String, Object> idWrapper = new HashMap<String, Object>();
                                    for (int y = 0; y < primaryKey.getPrimaryKey().length; y++) {
                                        XMLObjectReferenceMapping refMapping = (XMLObjectReferenceMapping) reference.getMapping();
                                        String idName = (String) refMapping.getReferenceDescriptor().getPrimaryKeyFieldNames().get(y);
                                        Object idValue = primaryKey.getPrimaryKey()[y];
                                        idWrapper.put(idName, idValue);
                                    }
                                    c = userSpecifiedResolver.resolve(idWrapper, reference.getTargetClass());
                                } else {
                                    c = userSpecifiedResolver.resolve(primaryKey.getPrimaryKey()[0], reference.getTargetClass());
                                }
                                if (c != null) {
                                    value = c.call();
                                }
                            } catch (Exception e) {
                                throw XMLMarshalException.unmarshalException(e);
                            }
                        } else {
                            value = getValue(session, reference, primaryKey, handler);
                        }
                       
                        if (value != null) {
                             cPolicy.addInto(value, container, session);
                        }
                    }
                }
                // for each reference, get the source object and add it to the container policy
                // when finished, set the policy on the mapping
                mapping.setAttributeValueInObject(referenceSourceObject, container);
                XMLInverseReferenceMapping inverseReferenceMapping = mapping.getInverseReferenceMapping();
                if(inverseReferenceMapping != null && value != null) {
                    AttributeAccessor backpointerAccessor = inverseReferenceMapping.getAttributeAccessor();
                    ContainerPolicy backpointerContainerPolicy = inverseReferenceMapping.getContainerPolicy();
                    if(backpointerContainerPolicy == null) {
                        backpointerAccessor.setAttributeValueInObject(value, referenceSourceObject);
                    } else {
                        Object backpointerContainer = backpointerAccessor.getAttributeValueFromObject(value);
                        if(backpointerContainer == null) {
                            backpointerContainer = backpointerContainerPolicy.containerInstance();
                            backpointerAccessor.setAttributeValueInObject(value, backpointerContainer);
                        }
                        backpointerContainerPolicy.addInto(referenceSourceObject, backpointerContainer, session);
                    }
                }
            } else if (reference.getMapping() instanceof XMLObjectReferenceMapping) {
                CacheId primaryKey = (CacheId) reference.getPrimaryKey();
                Object value = null;
                if (userSpecifiedResolver != null) {
                    final Callable c;
                    try {
                        if (primaryKey.getPrimaryKey().length > 1) {
                            Map<String, Object> idWrapper = new HashMap<String, Object>();
                            for (int y = 0; y < primaryKey.getPrimaryKey().length; y++) {
                                XMLObjectReferenceMapping refMapping = (XMLObjectReferenceMapping) reference.getMapping();
                                String idName = (String) refMapping.getReferenceDescriptor().getPrimaryKeyFieldNames().get(y);
                                Object idValue = primaryKey.getPrimaryKey()[y];
                                idWrapper.put(idName, idValue);
                            }
                            c = userSpecifiedResolver.resolve(idWrapper, reference.getTargetClass());
                        } else {
                            c = userSpecifiedResolver.resolve(primaryKey.getPrimaryKey()[0], reference.getTargetClass());
                        }
                        if (c != null) {
                            value = c.call();
                        }
                    } catch (Exception e) {
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                            Object[] pkValues = primaryKey.getPrimaryKey();
                            Object[] convertedPkValues = new Object[pkValues.length];
                            for(int x=0; x<pkValues.length; x++) {
                                convertedPkValues[x] = session.getDatasourcePlatform().getConversionManager().convertObject(pkValues[x], targetType);
                            }
                            value = getValue(targetDescriptor.getJavaClass(), new CacheId(convertedPkValues));
                        } catch(ConversionException e) {
                        }
                    }
                    if(null != value) {
                        return value;
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     */
    public AbstractRecord buildRow(Object object, AbstractSession session, DatabaseField xmlField, XMLRecord parentRecord) {
        if (isXmlDescriptor() && ((XMLDescriptor)getDescriptor()).shouldPreserveDocument()) {
            Object pk = extractPrimaryKeyFromObject(object, session);
            if ((pk == null) || (pk instanceof CacheId) && (((CacheId)pk).getPrimaryKey().length == 0)) {
                pk = new CacheId(new Object[]{ new WeakObjectWrapper(object) });
            }
            CacheKey cacheKey = session.getIdentityMapAccessorInstance().getCacheKeyForObject(pk, getDescriptor().getJavaClass(), getDescriptor(), false);
            if ((cacheKey != null) && (cacheKey.getRecord() != null)) {
                XMLRecord nestedRecord = (XMLRecord)cacheKey.getRecord();
                nestedRecord.setMarshaller(parentRecord.getMarshaller());
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        // the order in which the primary keys are added to the vector is
        // relevant for cache lookup - it must match the ordering of the
        // reference descriptor's primary key entries

        Reference reference = resolver.getReference(this, srcObject);
        CacheId primaryKeys;
        if(null == referenceClass || ClassConstants.OBJECT == referenceClass) {
            if (reference == null) {
                // if reference is null, create a new instance and set it on the resolver
                primaryKeys = new CacheId(new Object[1]);
                reference = new Reference(this, srcObject, referenceClass, primaryKeys);
                resolver.addReference(reference);
                record.reference(reference);
            }  else {
                primaryKeys = (CacheId) reference.getPrimaryKey();
            }
            primaryKeys.set(0, object);
        } else {
            Vector pkFieldNames = referenceDescriptor.getPrimaryKeyFieldNames();
            // if reference is null, create a new instance and set it on the resolver
            if (reference == null) {
                primaryKeys = new CacheId(new Object[pkFieldNames.size()]);
                reference = new Reference(this, srcObject, referenceClass, primaryKeys);
                resolver.addReference(reference);
                record.reference(reference);
            } else {
                primaryKeys = (CacheId) reference.getPrimaryKey();
            }
            XMLField tgtFld = (XMLField) getSourceToTargetKeyFieldAssociations().get(xmlField);
            int idx = pkFieldNames.indexOf(tgtFld.getXPath());
            // fix for bug# 5687430
            // need to get the actual type of the target (i.e. int, String, etc.)
            // and use the converted value when checking the cache.
            Object value = session.getDatasourcePlatform().getConversionManager().convertObject(object, referenceDescriptor.getTypedField(tgtFld).getType());
            if (value != null) {
                primaryKeys.set(idx, value);
            }
        }
    }
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     */
    public Object readFromRowIntoObject(AbstractRecord databaseRow, JoinedAttributeManager joinManager, Object targetObject, CacheKey parentCacheKey, ObjectBuildingQuery sourceQuery, AbstractSession executionSession, boolean isTargetProtected) throws DatabaseException {
        // the order in which the primary keys are added to the vector is
        // relevant for cache lookup - it must match the ordering of the
        // reference descriptor's primary key entries
        CacheId primaryKeys;
        ClassDescriptor descriptor = sourceQuery.getSession().getClassDescriptor(referenceClass);
        Vector pkFieldNames = null;
        if(null == descriptor) {
            primaryKeys = new CacheId(new Object[1]);
        } else {
            pkFieldNames = descriptor.getPrimaryKeyFieldNames();
            primaryKeys = new CacheId(new Object[pkFieldNames.size()]);
        }
        Iterator keyIt = sourceToTargetKeys.iterator();
        while (keyIt.hasNext()) {
            XMLField keyFld = (XMLField) keyIt.next();
            XMLField tgtFld = (XMLField) getSourceToTargetKeyFieldAssociations().get(keyFld);
            Object value;
            int idx = 0;
            if(null == tgtFld) {
               value = databaseRow.get(keyFld);
            } else {
                idx = pkFieldNames.indexOf(tgtFld.getXPath());
                if (idx == -1) {
                    continue;
                }
                // fix for bug# 5687430
                // need to get the actual type of the target (i.e. int, String, etc.)
                // and use the converted value when checking the cache.
                value = executionSession.getDatasourcePlatform().getConversionManager().convertObject(databaseRow.get(keyFld), descriptor.getTypedField(tgtFld).getType());
            }
            if (value != null) {
                primaryKeys.set(idx, value);
            }
        }
        // store the Reference instance on the resolver for use during mapping
        // resolution phase
        ReferenceResolver resolver = ReferenceResolver.getInstance(sourceQuery.getSession());
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        if (reference == null) {
            // if reference is null, create a new instance and set it on the resolver
            reference = new Reference(this, srcObject, referenceClass, new HashMap());
            resolver.addReference(reference);
        }
        CacheId primaryKeys;
        if(null == referenceClass || ClassConstants.OBJECT == referenceClass) {
            HashMap primaryKeyMap = reference.getPrimaryKeyMap();
            CacheId pks = (CacheId) primaryKeyMap.get(null);
            if (pks == null){
                Object[] pkValues = new Object[1];
                pks = new CacheId(pkValues);
                primaryKeyMap.put(null, pks);
            }
            if(usesSingleNode) {
                for (StringTokenizer stok = new StringTokenizer((String) object); stok.hasMoreTokens();) {
                    pks.add(stok.nextToken());
                    reference = resolver.getReference(this, srcObject, xmlField);
                    if (reference == null) {
                        // if reference is null, create a new instance and set it on the resolver
                        reference = new Reference(this, srcObject, referenceClass, new HashMap());
                        resolver.addReference(reference);
                    }
                    primaryKeyMap = reference.getPrimaryKeyMap();
                    pks = (CacheId) primaryKeyMap.get(null);
                    if (pks == null){
                        Object[] pkValues = new Object[1];
                        pks = new CacheId(pkValues);
                        primaryKeyMap.put(null, pks);
                    }
                }
            } else {
                pks.add(object);
            }
        } else {
            XMLField tgtFld = (XMLField) getSourceToTargetKeyFieldAssociations().get(xmlField);
            String tgtXPath = tgtFld.getXPath();
            HashMap primaryKeyMap = reference.getPrimaryKeyMap();
            CacheId pks = (CacheId) primaryKeyMap.get(tgtXPath);
            ClassDescriptor descriptor = session.getClassDescriptor(referenceClass);
            if (pks == null){
                pks = new CacheId(new Object[0]);
                primaryKeyMap.put(tgtXPath, pks);
            }
            Class type = descriptor.getTypedField(tgtFld).getType();
            XMLConversionManager xmlConversionManager = (XMLConversionManager) session.getDatasourcePlatform().getConversionManager();
            if(usesSingleNode) {
                for (StringTokenizer stok = new StringTokenizer((String) object); stok.hasMoreTokens();) {
                    Object value = xmlConversionManager.convertObject(stok.nextToken(), type);
                    if (value != null) {
                        pks.add(value);
                    }
                    reference = resolver.getReference(this, srcObject, xmlField);
                    if (reference == null) {
                        // if reference is null, create a new instance and set it on the resolver
                        reference = new Reference(this, srcObject, referenceClass, new HashMap());
                        resolver.addReference(reference);
                    }
                    primaryKeyMap = reference.getPrimaryKeyMap();
                    pks = (CacheId) primaryKeyMap.get(null);
                    if (pks == null){
                        pks = new CacheId(new Object[0]);
                        primaryKeyMap.put(tgtXPath, pks);
                    }                   
                }
            } else {
                Object value = xmlConversionManager.convertObject(object, type);
                if (value != null) {
                    pks.add(value);
                }
            }
        }
    }
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Related Classes of org.eclipse.persistence.internal.identitymaps.CacheId

  • org.eclipse.persistence.descriptors.CachePolicy
  • org.eclipse.persistence.eis.mappings.EISOneToOneMapping
  • org.eclipse.persistence.internal.jpa.CMP3Policy
  • org.eclipse.persistence.internal.jpa.EntityManagerImpl
  • org.eclipse.persistence.internal.oxm.documentpreservation.DescriptorLevelDocumentPreservationPolicy
  • org.eclipse.persistence.internal.oxm.record.UnmarshalRecordImpl
  • org.eclipse.persistence.internal.oxm.ReferenceResolver
  • org.eclipse.persistence.internal.oxm.XMLObjectBuilder
  • org.eclipse.persistence.internal.sessions.UnitOfWorkChangeSet
  • org.eclipse.persistence.jpa.dynamic.DynamicIdentityPolicy
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