Examples of org.eclipse.persistence.internal.indirection.IndirectionPolicy

Package org.eclipse.persistence.internal.indirection

Examples of org.eclipse.persistence.internal.indirection.IndirectionPolicy

org.eclipse.persistence.internal.indirection.IndirectionPolicy
Purpose
: An IndirectionPolicy acts as a 'rules' holder that determines the behavior of a ForeignReferenceMapping (or TransformationMapping) with respect to indirection, or lack thereof.

Description
: IndirectionPolicy is an abstract class that defines the protocol to be implemented by subclasses so that the assorted DatabaseMappings can use an assortment of indirection policies:
- no indirection policy (read everything from database)
- basic indirection policy (use ValueHolders)
- transparent indirection policy (collections only)
- proxy indirection policy (transparent 1:1 indirection using JDK 1.3's Proxy)
Responsibilities
:
- instantiate the various IndirectionPolicies
@see ForeignReferenceMapping @author Mike Norman @since TOPLink/Java 2.5

        XMLCompositeObjectMapping indirectionPolicyMapping = new XMLCompositeObjectMapping();
        indirectionPolicyMapping.setReferenceClass(IndirectionPolicy.class);
        // Handle translation of NoIndirectionPolicy -> null.
        indirectionPolicyMapping.setAttributeAccessor(new AttributeAccessor() {
            public Object getAttributeValueFromObject(Object object) {
                IndirectionPolicy policy = ((ForeignReferenceMapping)object).getIndirectionPolicy();
                if (policy instanceof NoIndirectionPolicy) {
                    return null;
                }
                return policy;
            }


            public void setAttributeValueInObject(Object object, Object value) {
                IndirectionPolicy policy = (IndirectionPolicy)value;
                if (value == null) {
                    policy = new NoIndirectionPolicy();
                }
                ((ForeignReferenceMapping)object).setIndirectionPolicy(policy);
            }

View Full Code Here

        XMLCompositeObjectMapping indirectionPolicyMapping = new XMLCompositeObjectMapping();
        indirectionPolicyMapping.setReferenceClass(IndirectionPolicy.class);
        // Handle translation of NoIndirectionPolicy -> null.
        indirectionPolicyMapping.setAttributeAccessor(new AttributeAccessor() {
            public Object getAttributeValueFromObject(Object object) {
                IndirectionPolicy policy = ((ForeignReferenceMapping)object).getIndirectionPolicy();
                if (policy instanceof NoIndirectionPolicy) {
                    return null;
                }
                return policy;
            }


            public void setAttributeValueInObject(Object object, Object value) {
                IndirectionPolicy policy = (IndirectionPolicy)value;
                if (value == null) {
                    policy = new NoIndirectionPolicy();
                }
                ((ForeignReferenceMapping)object).setIndirectionPolicy(policy);
            }

View Full Code Here

        XMLCompositeObjectMapping indirectionPolicyMapping = new XMLCompositeObjectMapping();
        indirectionPolicyMapping.setReferenceClass(IndirectionPolicy.class);
        // Handle translation of NoIndirectionPolicy -> null.
        indirectionPolicyMapping.setAttributeAccessor(new AttributeAccessor() {
            public Object getAttributeValueFromObject(Object object) {
                IndirectionPolicy policy = ((ForeignReferenceMapping)object).getIndirectionPolicy();
                if (policy instanceof NoIndirectionPolicy) {
                    return null;
                }
                return policy;
            }


            public void setAttributeValueInObject(Object object, Object value) {
                IndirectionPolicy policy = (IndirectionPolicy)value;
                if (value == null) {
                    policy = new NoIndirectionPolicy();
                }
                ((ForeignReferenceMapping)object).setIndirectionPolicy(policy);
            }

View Full Code Here

        XMLCompositeObjectMapping indirectionPolicyMapping = new XMLCompositeObjectMapping();
        indirectionPolicyMapping.setReferenceClass(IndirectionPolicy.class);
        // Handle translation of NoIndirectionPolicy -> null.
        indirectionPolicyMapping.setAttributeAccessor(new AttributeAccessor() {
            public Object getAttributeValueFromObject(Object object) {
                IndirectionPolicy policy = ((AbstractTransformationMapping)object).getIndirectionPolicy();
                if (policy instanceof NoIndirectionPolicy) {
                    return null;
                }
                return policy;
            }


            public void setAttributeValueInObject(Object object, Object value) {
                IndirectionPolicy policy = (IndirectionPolicy)value;
                if (value == null) {
                    policy = new NoIndirectionPolicy();
                }
                ((AbstractTransformationMapping)object).setIndirectionPolicy(policy);
            }

View Full Code Here

        XMLCompositeObjectMapping indirectionPolicyMapping = new XMLCompositeObjectMapping();
        indirectionPolicyMapping.setReferenceClass(IndirectionPolicy.class);
        // Handle translation of NoIndirectionPolicy -> null.
        indirectionPolicyMapping.setAttributeAccessor(new AttributeAccessor() {
            public Object getAttributeValueFromObject(Object object) {
                IndirectionPolicy policy = ((ForeignReferenceMapping)object).getIndirectionPolicy();
                if (policy instanceof NoIndirectionPolicy) {
                    return null;
                }
                return policy;
            }


            public void setAttributeValueInObject(Object object, Object value) {
                IndirectionPolicy policy = (IndirectionPolicy)value;
                if (value == null) {
                    policy = new NoIndirectionPolicy();
                }
                ((ForeignReferenceMapping)object).setIndirectionPolicy(policy);
            }

View Full Code Here

        XMLCompositeObjectMapping indirectionPolicyMapping = new XMLCompositeObjectMapping();
        indirectionPolicyMapping.setReferenceClass(IndirectionPolicy.class);
        // Handle translation of NoIndirectionPolicy -> null.
        indirectionPolicyMapping.setAttributeAccessor(new AttributeAccessor() {
                public Object getAttributeValueFromObject(Object object) {
                    IndirectionPolicy policy = ((ForeignReferenceMapping)object).getIndirectionPolicy();
                    if (policy instanceof NoIndirectionPolicy) {
                        return null;
                    }
                    return policy;
                }


                public void setAttributeValueInObject(Object object, Object value) {
                    IndirectionPolicy policy = (IndirectionPolicy)value;
                    if (value == null) {
                        policy = new NoIndirectionPolicy();
                    }
                    ((ForeignReferenceMapping)object).setIndirectionPolicy(policy);
                }

View Full Code Here

        XMLCompositeObjectMapping indirectionPolicyMapping = new XMLCompositeObjectMapping();
        indirectionPolicyMapping.setReferenceClass(IndirectionPolicy.class);
        // Handle translation of NoIndirectionPolicy -> null.
        indirectionPolicyMapping.setAttributeAccessor(new AttributeAccessor() {
                public Object getAttributeValueFromObject(Object object) {
                    IndirectionPolicy policy = ((ForeignReferenceMapping)object).getIndirectionPolicy();
                    if (policy instanceof NoIndirectionPolicy) {
                        return null;
                    }
                    return policy;
                }


                public void setAttributeValueInObject(Object object, Object value) {
                    IndirectionPolicy policy = (IndirectionPolicy)value;
                    if (value == null) {
                        policy = new NoIndirectionPolicy();
                    }
                    ((ForeignReferenceMapping)object).setIndirectionPolicy(policy);
                }

View Full Code Here

     */
    public static boolean isLoaded(Object entity, String attributeName, DatabaseMapping mapping){
        if (mapping.isForeignReferenceMapping()){
            if (((ForeignReferenceMapping)mapping).isLazy()){
                Object value = mapping.getAttributeValueFromObject(entity);
                IndirectionPolicy policy = ((ForeignReferenceMapping)mapping).getIndirectionPolicy();
                return policy.objectIsInstantiated(value);
            }
        }


        if (entity instanceof FetchGroupTracker){
            return ((FetchGroupTracker)entity)._persistence_isAttributeFetched(attributeName);

View Full Code Here

        XMLCompositeObjectMapping indirectionPolicyMapping = new XMLCompositeObjectMapping();
        indirectionPolicyMapping.setReferenceClass(IndirectionPolicy.class);
        // Handle translation of NoIndirectionPolicy -> null.
        indirectionPolicyMapping.setAttributeAccessor(new AttributeAccessor() {
            public Object getAttributeValueFromObject(Object object) {
                IndirectionPolicy policy = ((ForeignReferenceMapping)object).getIndirectionPolicy();
                if (policy instanceof NoIndirectionPolicy) {
                    return null;
                }
                return policy;
            }


            public void setAttributeValueInObject(Object object, Object value) {
                IndirectionPolicy policy = (IndirectionPolicy)value;
                if (value == null) {
                    policy = new NoIndirectionPolicy();
                }
                ((ForeignReferenceMapping)object).setIndirectionPolicy(policy);
            }

View Full Code Here

        XMLCompositeObjectMapping indirectionPolicyMapping = new XMLCompositeObjectMapping();
        indirectionPolicyMapping.setReferenceClass(IndirectionPolicy.class);
        // Handle translation of NoIndirectionPolicy -> null.
        indirectionPolicyMapping.setAttributeAccessor(new AttributeAccessor() {
            public Object getAttributeValueFromObject(Object object) {
                IndirectionPolicy policy = ((ForeignReferenceMapping)object).getIndirectionPolicy();
                if (policy instanceof NoIndirectionPolicy) {
                    return null;
                }
                return policy;
            }


            public void setAttributeValueInObject(Object object, Object value) {
                IndirectionPolicy policy = (IndirectionPolicy)value;
                if (value == null) {
                    policy = new NoIndirectionPolicy();
                }
                ((ForeignReferenceMapping)object).setIndirectionPolicy(policy);
            }

View Full Code Here

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Related Classes of org.eclipse.persistence.internal.indirection.IndirectionPolicy

org.eclipse.persistence.eis.EISObjectPersistenceXMLProject

org.eclipse.persistence.internal.jpa.EntityManagerFactoryImpl

org.eclipse.persistence.internal.sessions.factories.ObjectPersistenceRuntimeXMLProject

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Examples of org.eclipse.persistence.internal.indirection.IndirectionPolicy

Purpose

Description

Responsibilities

Related Classes of org.eclipse.persistence.internal.indirection.IndirectionPolicy