Examples of org.eclipse.persistence.sessions.CopyGroup

Package org.eclipse.persistence.sessions

Examples of org.eclipse.persistence.sessions.CopyGroup

org.eclipse.persistence.sessions.CopyGroup
Purpose: Define how an object is to be copied.
Description: This is for usage with the object copying feature, not the unit of work. This is useful for copying an entire object graph as part of the host application's logic.
Responsibilities:
- Indicate through CASCADE levels the depth relationships will copied.
- Indicate if PK attributes should be copied with existing value or should be reset.
- Copies only the attributes found in the group.
@see Session#copy(Object,CopyGroup)

     * The object and all of its privately owned parts will be copied.
     *
     * @see #copy(Object, AttributeGroup)
     */
    public Object copy(Object originalObjectOrObjects) {
        return copy(originalObjectOrObjects, new CopyGroup());
    }

View Full Code Here

    public Object copy(Object originalObjectOrObjects, AttributeGroup group) {
        if (originalObjectOrObjects == null) {
            return null;
        }


        CopyGroup copyGroup = group.toCopyGroup();
        copyGroup.setSession(this);
        if(originalObjectOrObjects instanceof Collection) {
            // it's a collection - make sure all elements use the same instance of CopyGroup.
            Collection originalCollection = (Collection)originalObjectOrObjects;
            Collection copies;
            if(originalCollection instanceof List) {

View Full Code Here

     * @see #copyObject(Object, ObjectCopyingPolicy)
     * @deprecated since EclipseLink 2.1, replaced by copy(Object)
     * @see #copy(Object)
     */
    public Object copyObject(Object original) {
        CopyGroup copyGroup = new CopyGroup();
        copyGroup.setShouldResetPrimaryKey(true);
        return copy(original, copyGroup);
    }

View Full Code Here

                    boolean shouldCopy = shouldCopyAllAttributes || (attributesToCopy != null && attributesToCopy.contains(name));
                    boolean shouldVisit = attributesToVisit == null || attributesToVisit.contains(name);
                    if(shouldCopy || shouldVisit) {
                        boolean isVisiting = false;
                        // unless it's a reference mapping pass copyGroup - just to carry the session.
                        CopyGroup mappingCopyGroup = copyGroup;
                        if(mapping.isForeignReferenceMapping()) {
                            ForeignReferenceMapping frMapping = (ForeignReferenceMapping)mapping;
                            ClassDescriptor referenceDescriptor = frMapping.getReferenceDescriptor();
                            if(referenceDescriptor != null) {
                                isVisiting = true;
                                mappingCopyGroup = copyGroup.getGroup(name);
                                if(mappingCopyGroup == null) {
                                    FetchGroupManager referenceFetchGroupManager = referenceDescriptor.getFetchGroupManager();
                                    if(referenceFetchGroupManager != null) {
                                        EntityFetchGroup nonReferenceEntityFetchGroup = referenceFetchGroupManager.getNonReferenceEntityFetchGroup(copyGroup.shouldResetPrimaryKey(), copyGroup.shouldResetVersion());
                                        if(nonReferenceEntityFetchGroup != null) {
                                            mappingCopyGroup = nonReferenceEntityFetchGroup.toCopyGroup();
                                        } else {
                                            // null nonReferenceEntityFetchGroup is equivalent to containing all attributes:
                                            // create a new empty CopyGroup.
                                            mappingCopyGroup = new CopyGroup();
                                            mappingCopyGroup.shouldCascadeTree();
                                        }
                                    } else {
                                        // TODO: would that work?
                                        mappingCopyGroup = new CopyGroup();
                                        mappingCopyGroup.dontCascade();
                                        isVisiting = false;
                                    }
                                    mappingCopyGroup.setCopies(copyGroup.getCopies());
                                    mappingCopyGroup.setShouldResetPrimaryKey(copyGroup.shouldResetPrimaryKey());
                                    mappingCopyGroup.setShouldResetVersion(copyGroup.shouldResetVersion());
                                }
                                mappingCopyGroup.setSession(copyGroup.getSession());
                            }
                        }
                        if(shouldCopy || isVisiting) {
                            // TODO: optimization: (even when isVisiting == true) redefine buildCopy to take shouldCopy and don't copy if not required.
                            mapping.buildCopy(copy, original, mappingCopyGroup);

View Full Code Here

                    boolean shouldCopy = shouldCopyAllAttributes || (attributesToCopy != null && attributesToCopy.contains(name));
                    boolean shouldVisit = attributesToVisit == null || attributesToVisit.contains(name);
                    if(shouldCopy || shouldVisit) {
                        boolean isVisiting = false;
                        // unless it's a reference mapping pass copyGroup - just to carry the session.
                        CopyGroup mappingCopyGroup = copyGroup;
                        if(mapping.isForeignReferenceMapping()) {
                            ForeignReferenceMapping frMapping = (ForeignReferenceMapping)mapping;
                            ClassDescriptor referenceDescriptor = frMapping.getReferenceDescriptor();
                            if(referenceDescriptor != null) {
                                isVisiting = true;
                                mappingCopyGroup = copyGroup.getGroup(name);
                                if(mappingCopyGroup == null) {
                                    FetchGroupManager referenceFetchGroupManager = referenceDescriptor.getFetchGroupManager();
                                    if(referenceFetchGroupManager != null) {
                                        EntityFetchGroup nonReferenceEntityFetchGroup = referenceFetchGroupManager.getNonReferenceEntityFetchGroup(copyGroup.shouldResetPrimaryKey(), copyGroup.shouldResetVersion());
                                        if(nonReferenceEntityFetchGroup != null) {
                                            mappingCopyGroup = nonReferenceEntityFetchGroup.toCopyGroup();
                                        } else {
                                            // null nonReferenceEntityFetchGroup is equivalent to containing all attributes:
                                            // create a new empty CopyGroup.
                                            mappingCopyGroup = new CopyGroup();
                                            mappingCopyGroup.shouldCascadeTree();
                                            mappingCopyGroup.setShouldResetPrimaryKey(copyGroup.shouldResetPrimaryKey());
                                            mappingCopyGroup.setShouldResetVersion(copyGroup.shouldResetVersion());
                                        }
                                    } else {
                                        // TODO: would that work?
                                        mappingCopyGroup = new CopyGroup();
                                        mappingCopyGroup.dontCascade();
                                        isVisiting = false;
                                    }
                                    mappingCopyGroup.setCopies(copyGroup.getCopies());
                                }
                                mappingCopyGroup.setSession(copyGroup.getSession());
                            }
                        }
                        if(shouldCopy || isVisiting) {
                            // TODO: optimization: (even when isVisiting == true) redefine buildCopy to take shouldCopy and don't copy if not required.
                            mapping.buildCopy(copy, original, mappingCopyGroup);

View Full Code Here

     * The object and all of its privately owned parts will be copied.
     *
     * @see #copy(Object, AttributeGroup)
     */
    public Object copy(Object originalObjectOrObjects) {
        return copy(originalObjectOrObjects, new CopyGroup());
    }

View Full Code Here

    public Object copy(Object originalObjectOrObjects, AttributeGroup group) {
        if (originalObjectOrObjects == null) {
            return null;
        }


        CopyGroup copyGroup = group.toCopyGroup();
        copyGroup.setSession(this);
        if(originalObjectOrObjects instanceof Collection) {
            // it's a collection - make sure all elements use the same instance of CopyGroup.
            Collection originalCollection = (Collection)originalObjectOrObjects;
            Collection copies;
            if(originalCollection instanceof List) {

View Full Code Here

     * @see #copyObject(Object, ObjectCopyingPolicy)
     * @deprecated since EclipseLink 2.1, replaced by copy(Object)
     * @see #copy(Object)
     */
    public Object copyObject(Object original) {
        CopyGroup copyGroup = new CopyGroup();
        copyGroup.setShouldResetPrimaryKey(true);
        return copy(original, copyGroup);
    }

View Full Code Here


    public CopyGroup toCopyGroup() {
        if (isCopyGroup()) {
            return (CopyGroup) this;
        }
        CopyGroup copyGroup = new CopyGroup(getName());
        copyGroup.cascadeTree();
        if (this.hasItems()) {
            Iterator<Map.Entry<String, AttributeItem>> it = getItems().entrySet().iterator();
            while (it.hasNext()) {
                Map.Entry<String, AttributeItem> entry = it.next();
                AttributeGroup group = entry.getValue().getGroup();
                if (group == null) {
                    copyGroup.addAttribute(entry.getKey());
                } else {
                    copyGroup.addAttribute(entry.getKey(), group.toCopyGroup());
                }
            }
        }
        return copyGroup;
    }

View Full Code Here

     * The object and all of its privately owned parts will be copied.
     *
     * @see #copy(Object, AttributeGroup)
     */
    public Object copy(Object originalObjectOrObjects) {
        return copy(originalObjectOrObjects, new CopyGroup());
    }

View Full Code Here

0 1 2 3 4 5 6

TOP

Related Classes of org.eclipse.persistence.sessions.CopyGroup

org.eclipse.persistence.internal.descriptors.ObjectBuilder

org.eclipse.persistence.internal.sessions.AbstractSession

org.eclipse.persistence.queries.AttributeGroup

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.