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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.ui.element;
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import org.apache.commons.lang.StringUtils;
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import org.eclipse.jface.util.IPropertyChangeListener;
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import org.eclipse.jface.util.PropertyChangeEvent;
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import org.eclipse.jface.wizard.WizardPage;
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import org.eclipse.swt.graphics.Color;
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import org.eclipse.swt.widgets.Composite;
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import org.eclipse.ui.forms.widgets.ScrolledForm;
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import org.eclipse.ui.forms.widgets.TableWrapLayout;
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import eu.etaxonomy.cdm.api.conversation.ConversationHolder;
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import eu.etaxonomy.cdm.api.conversation.IConversationEnabled;
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import eu.etaxonomy.cdm.model.common.IIdentifiableEntity;
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import eu.etaxonomy.cdm.persistence.hibernate.CdmDataChangeMap;
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import eu.etaxonomy.taxeditor.ui.section.AbstractCdmDetailElement;
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/**
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* <p>
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* Abstract AbstractCdmEntityWizardPage class.
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* </p>
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*
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* @author n.hoffmann
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* @created Jun 1, 2010
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*/
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public abstract class AbstractCdmEntityWizardPage<T> extends WizardPage
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implements IConversationEnabled, IPropertyChangeListener {
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protected CdmFormFactory formFactory;
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protected T entity;
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AbstractCdmDetailElement<T> detailElement;
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private final ConversationHolder conversation;
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/**
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* <p>
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* Constructor for AbstractCdmEntityWizardPage.
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* </p>
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*
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* @param formFactory
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* a {@link eu.etaxonomy.taxeditor.ui.element.CdmFormFactory}
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* object.
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* @param conversation
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* a {@link eu.etaxonomy.cdm.api.conversation.ConversationHolder}
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* object.
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* @param entity
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* a T object.
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* @param <T>
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* a T object.
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*/
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protected AbstractCdmEntityWizardPage(CdmFormFactory formFactory,
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ConversationHolder conversation, T entity) {
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super("page");
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this.formFactory = formFactory;
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this.entity = entity;
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this.conversation = conversation;
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setDescription(getEntityTitle());
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formFactory.addPropertyChangeListener(this);
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setPageComplete(false);
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}
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/**
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* @return
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*/
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private String getEntityTitle() {
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if (entity instanceof IIdentifiableEntity) {
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((IIdentifiableEntity) entity).getTitleCache();
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}
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return "";
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}
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/** {@inheritDoc} */
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@Override
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public void createControl(Composite parent) {
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ScrolledForm scrolledForm = formFactory.createScrolledForm(parent);
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scrolledForm.getBody().setLayout(LayoutConstants.LAYOUT());
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Composite control = formFactory.createComposite(scrolledForm.getBody());
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control.setLayoutData(LayoutConstants.FILL());
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TableWrapLayout layout = LayoutConstants.LAYOUT(2, false);
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layout.horizontalSpacing = 5;
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control.setLayout(layout);
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WizardPageRootElement rootElement = new WizardPageRootElement(
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formFactory, control, getConversationHolder());
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Color bgColor = getShell().getBackground();
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detailElement = createElement(rootElement);
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rootElement.setBackground(bgColor);
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control.setBackground(bgColor);
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scrolledForm.setBackground(bgColor);
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setControl(scrolledForm);
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}
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/**
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* <p>
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* Getter for the field <code>entity</code>.
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* </p>
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*
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* @return a T object.
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*/
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public T getEntity() {
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return entity;
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}
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/**
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* Creates the detail element for this wizard page
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*
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* @param rootElement
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* a {@link eu.etaxonomy.taxeditor.ui.element.ICdmFormElement}
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* object.
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* @return a
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* {@link eu.etaxonomy.taxeditor.ui.section.AbstractCdmDetailElement}
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* object.
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*/
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public abstract AbstractCdmDetailElement<T> createElement(
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ICdmFormElement rootElement);
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protected class WizardPageRootElement extends RootElement implements
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IConversationEnabled {
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private final ConversationHolder conversation;
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public WizardPageRootElement(CdmFormFactory formFactory,
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Composite layoutComposite, ConversationHolder conversation) {
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super(formFactory, layoutComposite);
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this.conversation = conversation;
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}
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@Override
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public void refresh() {
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super.refresh();
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this.removeElements();
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detailElement = createElement(this);
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((Composite) getControl()).layout();
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}
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@Override
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public ConversationHolder getConversationHolder() {
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return conversation;
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}
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@Override
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public void update(CdmDataChangeMap changeEvents) {
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}
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}
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@Override
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public void propertyChange(PropertyChangeEvent event) {
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if (event.getSource() == getDetailElement()) {
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checkComplete();
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}
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else if(event.getSource() instanceof AbstractCdmDetailElement){
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//check if parent element is set as detail element
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ICdmFormElement formElement = (ICdmFormElement) event.getSource();
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while(formElement.getParentElement()!=null){
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if(formElement.getParentElement() == getDetailElement()){
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checkComplete();
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return;
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}
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formElement = formElement.getParentElement();
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}
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}
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}
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/**
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* Should check whether the wizard is complete in a sense that it contains
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* sane data. Should setPageComplete to true if that is the case.
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*/
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protected void checkComplete() {
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setPageComplete(titleCacheIsNotEmpty());
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}
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protected boolean titleCacheIsNotEmpty() {
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if (getEntity() instanceof IIdentifiableEntity) {
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IIdentifiableEntity entity = (IIdentifiableEntity) getEntity();
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return !StringUtils.isEmpty(entity.getTitleCache());
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}
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return true;
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}
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/**
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* <p>
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* getConversationHolder
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* </p>
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*
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* @return a {@link eu.etaxonomy.cdm.api.conversation.ConversationHolder}
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* object.
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*/
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@Override
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public ConversationHolder getConversationHolder() {
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return conversation;
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}
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/** {@inheritDoc} */
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@Override
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public void dispose() {
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if (detailElement != null) {
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detailElement.removeElements();
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}
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formFactory.removePropertyChangeListener(this);
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super.dispose();
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}
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/**
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* <p>
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* Getter for the field <code>detailElement</code>.
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* </p>
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*
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* @return a
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* {@link eu.etaxonomy.taxeditor.ui.section.AbstractCdmDetailElement}
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* object.
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*/
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public AbstractCdmDetailElement<T> getDetailElement() {
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return detailElement;
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}
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/** {@inheritDoc} */
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@Override
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public void update(CdmDataChangeMap changeEvents) {
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}
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}
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