org.eclipse.osbp.ecview.core.common.editparts.emf/src/org/eclipse/osbp/ecview/core/common/editpart/emf/binding/ListBindingEditpart.java - osbp/org.eclipse.osbp.ecview.core - Git at Google

 /**
  * Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *         Florian Pirchner - Initial implementation
  */
 package org.eclipse.osbp.ecview.core.common.editpart.emf.binding;

 import org.eclipse.core.databinding.Binding;
 import org.eclipse.core.databinding.observable.list.IObservableList;
 import org.eclipse.emf.common.notify.Notification;
 import org.eclipse.emf.common.notify.impl.AdapterImpl;
 import org.eclipse.osbp.ecview.core.common.binding.IECViewBindingManager;
 import org.eclipse.osbp.ecview.core.common.editpart.DelegatingEditPartManager;
 import org.eclipse.osbp.ecview.core.common.editpart.binding.IBindableListEndpointEditpart;
 import org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingSetEditpart;
 import org.eclipse.osbp.ecview.core.common.editpart.binding.IListBindingEditpart;
 import org.eclipse.osbp.ecview.core.common.editpart.emf.ElementEditpart;
 import org.eclipse.osbp.ecview.core.common.model.binding.BindingPackage;
 import org.eclipse.osbp.ecview.core.common.model.binding.YBindingEndpoint;
 import org.eclipse.osbp.ecview.core.common.model.binding.YBindingUpdateStrategy;
 import org.eclipse.osbp.ecview.core.common.model.binding.YListBinding;
 import org.eclipse.osbp.ecview.core.common.model.binding.YListBindingEndpoint;
 import org.eclipse.osbp.ecview.core.databinding.emf.common.ECViewUpdateListStrategy;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;

 // TODO: Auto-generated Javadoc
 /**
  * Implementation of {@link IBindingSetEditpart}.
  */
 public class ListBindingEditpart extends ElementEditpart<YListBinding> implements IListBindingEditpart {

 	/** The Constant LOGGER. */
 	private static final Logger LOGGER = LoggerFactory.getLogger(ListBindingEditpart.class);

 	/** The target value. */
 	private IBindableListEndpointEditpart targetValue;

 	/** The model value. */
 	private IBindableListEndpointEditpart modelValue;

 	/** The bound. */
 	private boolean bound;

 	/** The binding. */
 	private Binding binding;

 	private ActiveAdapter adapter = new ActiveAdapter();

 	private boolean isBinding;

 	/**
 	 * A default constructor.
 	 */
 	public ListBindingEditpart() {
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.ecview.core.common.editpart.emf.ElementEditpart#
 	 * handleModelSet(int, org.eclipse.emf.common.notify.Notification)
 	 */
 	@Override
 	protected void handleModelSet(int featureId, Notification notification) {
 		checkDisposed();

 		boolean shouldRebind = false;
 		switch (featureId) {
 		case BindingPackage.YLIST_BINDING__TARGET_ENDPOINT:
 			YBindingEndpoint YBindingEndpoint = (YBindingEndpoint) notification.getNewValue();

 			IBindableListEndpointEditpart editPart = (IBindableListEndpointEditpart) getEditpart(viewContext,
 					YBindingEndpoint);
 			internalSetTargetValue(editPart);

 			shouldRebind = true;
 			break;
 		case BindingPackage.YLIST_BINDING__MODEL_ENDPOINT:
 			YBindingEndpoint = (YBindingEndpoint) notification.getNewValue();

 			editPart = (IBindableListEndpointEditpart) getEditpart(viewContext, YBindingEndpoint);
 			internalSetModelValue(editPart);

 			shouldRebind = true;
 			break;
 		default:
 			break;
 		}

 		if (shouldRebind) {
 			unbind();
 			bind();
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
 	 * #setTargetEndpoint(org.eclipse.osbp.ecview.core.common.editpart.binding.
 	 * IBindableEndpointEditpart)
 	 */
 	public void setTargetEndpoint(IBindableListEndpointEditpart target) {
 		try {
 			checkDisposed();

 			// set the element by using the model
 			//
 			YListBinding yBinding = getModel();
 			YListBindingEndpoint yElement = target != null ? (YListBindingEndpoint) target.getModel() : null;
 			yBinding.setTargetEndpoint(yElement);
 			// BEGIN SUPRESS CATCH EXCEPTION
 		} catch (RuntimeException e) {
 			// END SUPRESS CATCH EXCEPTION
 			LOGGER.error("{}", e);
 			throw e;
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
 	 * #getTargetEndpoint()
 	 */
 	public IBindableListEndpointEditpart getTargetEndpoint() {
 		checkDisposed();

 		if (targetValue == null) {
 			loadTargetValue();
 		}
 		return targetValue;
 	}

 	/**
 	 * Loads the content of the view.
 	 */
 	protected void loadTargetValue() {
 		if (targetValue == null) {
 			YBindingEndpoint yValue = getModel().getTargetEndpoint();
 			internalSetTargetValue((IBindableListEndpointEditpart) getEditpart(viewContext, yValue));
 		}
 	}

 	/**
 	 * May be invoked by a model change and the content of the edit part should
 	 * be set.
 	 *
 	 * @param targetValue
 	 *            The content to be set
 	 */
 	protected void internalSetTargetValue(IBindableListEndpointEditpart targetValue) {
 		if (this.targetValue != null) {
 			YBindingEndpoint newEP = (YBindingEndpoint) this.targetValue.getModel();
 			newEP.eAdapters().remove(adapter);
 		}

 		this.targetValue = targetValue;

 		if (this.targetValue != null) {
 			YBindingEndpoint newEP = (YBindingEndpoint) this.targetValue.getModel();
 			newEP.eAdapters().add(adapter);
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
 	 * #setModelEndpoint(org.eclipse.osbp.ecview.core.common.editpart.binding.
 	 * IBindableEndpointEditpart)
 	 */
 	public void setModelEndpoint(IBindableListEndpointEditpart model) {
 		try {
 			checkDisposed();

 			// set the element by using the model
 			//
 			YListBinding yBinding = getModel();
 			YListBindingEndpoint yElement = model != null ? (YListBindingEndpoint) model.getModel() : null;
 			yBinding.setModelEndpoint(yElement);
 			// BEGIN SUPRESS CATCH EXCEPTION
 		} catch (RuntimeException e) {
 			// END SUPRESS CATCH EXCEPTION
 			LOGGER.error("{}", e);
 			throw e;
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
 	 * #getModelEndpoint()
 	 */
 	public IBindableListEndpointEditpart getModelEndpoint() {
 		checkDisposed();

 		if (modelValue == null) {
 			loadModelValue();
 		}
 		return modelValue;
 	}

 	/**
 	 * Loads the content of the view.
 	 */
 	protected void loadModelValue() {
 		if (modelValue == null) {
 			YBindingEndpoint yValue = getModel().getModelEndpoint();
 			internalSetModelValue((IBindableListEndpointEditpart) getEditpart(viewContext, yValue));
 		}
 	}

 	/**
 	 * May be invoked by a model change and the content of the edit part should
 	 * be set.
 	 *
 	 * @param modelValue
 	 *            The content to be set
 	 */
 	protected void internalSetModelValue(IBindableListEndpointEditpart modelValue) {
 		this.modelValue = modelValue;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
 	 * #isBound()
 	 */
 	@Override
 	public boolean isBound() {
 		checkDisposed();

 		return bound;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
 	 * #bind()
 	 */
 	@Override
 	public void bind() {
 		checkDisposed();

 		if (bound) {
 			return;
 		}

 		try {
 			isBinding = true;
 			IECViewBindingManager bindingManager = null;
 			if (getBindindSet() != null) {
 				bindingManager = getBindindSet().getBindingManager();
 			} else {
 				bindingManager = getViewContext(getModel()).getService(IECViewBindingManager.class.getName());
 			}
 			if (bindingManager != null) {
 				if (getTargetEndpoint() == null || getModelEndpoint() == null) {
 					LOGGER.warn("Endpoints are null");
 					return;
 				}

 				IObservableList target = getTargetEndpoint().getObservable();
 				YBindingEndpoint targetEP = (YBindingEndpoint) getTargetEndpoint().getModel();
 				if (!targetEP.isActive()) {
 					target.dispose();
 					return;
 				}
 				IObservableList model = getModelEndpoint().getObservable();

 				if (target == null) {
 					LOGGER.error("TargetValue must never be null! {}", getTargetEndpoint());
 					return;
 				}

 				if (model == null) {
 					LOGGER.error("ModelValue must never be null! {}", getModelEndpoint());
 					return;
 				}

 				ECViewUpdateListStrategy modelToTargetStrategy = getValueUpdateStrategy(
 						getModel().getModelToTargetStrategy());
 				ECViewUpdateListStrategy targetToModelStrategy = getValueUpdateStrategy(
 						getModel().getTargetToModelStrategy());
 				binding = bindingManager.bindList(target, model, targetToModelStrategy, modelToTargetStrategy);
 				binding.updateModelToTarget();

 				// set bound to true if everything went fine
 				bound = true;

 			} else {
 				LOGGER.error("BindingManager is null!. No bindings processed!");
 			}
 		} finally {
 			isBinding = false;
 		}
 	}

 	/**
 	 * Gets the value update strategy.
 	 *
 	 * @param strategy
 	 *            the strategy
 	 * @return the value update strategy
 	 */
 	private ECViewUpdateListStrategy getValueUpdateStrategy(YBindingUpdateStrategy strategy) {
 		ECViewUpdateListStrategy result = null;
 		switch (strategy) {
 		case UPDATE:
 			result = new ECViewUpdateListStrategy(ECViewUpdateListStrategy.POLICY_UPDATE);
 			break;
 		case NEVER:
 			result = new ECViewUpdateListStrategy(ECViewUpdateListStrategy.POLICY_NEVER);
 			break;
 		case ON_REQUEST:
 			result = new ECViewUpdateListStrategy(ECViewUpdateListStrategy.POLICY_ON_REQUEST);
 			break;
 		default:
 			result = new ECViewUpdateListStrategy(ECViewUpdateListStrategy.POLICY_UPDATE);
 		}
 		return result;
 	}

 	/**
 	 * Returns the binding set this binding belongs to.
 	 *
 	 * @return the bindind set
 	 */
 	protected IBindingSetEditpart getBindindSet() {
 		if (getModel().getBindingSet() == null) {
 			return null;
 		}
 		return DelegatingEditPartManager.getInstance().findEditpart(getModel().getBindingSet());
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
 	 * #unbind()
 	 */
 	@Override
 	public void unbind() {

 		if(!isDisposed()) {
 			checkDisposed();
 		} else {
 			LOGGER.warn("{}", "Why is this list binding already disposed? Seems to be related to StrategyLayout");
 			return;
 		}

 		if (!bound) {
 			return;
 		}

 		try {
 			if (binding != null) {
 				if (binding.getModel() != null)
 					binding.getModel().dispose();
 				if (binding.getTarget() != null)
 					binding.getTarget().dispose();
 				binding.dispose();
 				binding = null;
 			}
 		} finally {
 			bound = false;
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.osbp.ecview.core.common.editpart.emf.ElementEditpart#
 	 * internalDispose()
 	 */
 	@Override
 	protected void internalDispose() {
 		try {
 			if (binding != null) {
 				binding.dispose();
 				binding = null;
 			}
 			if (modelValue != null) {
 				modelValue.dispose();
 				modelValue = null;
 			}
 			if (targetValue != null) {
 				targetValue.dispose();
 				targetValue = null;
 			}
 		} finally {
 			super.internalDispose();
 		}
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see
 	 * org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
 	 * #getBinding()
 	 */
 	@Override
 	public Binding getBinding() {
 		return binding;
 	}

 	class ActiveAdapter extends AdapterImpl {
 		@Override
 		public void notifyChanged(Notification notification) {
 			if (notification.getFeature() == BindingPackage.Literals.YBINDING_ENDPOINT__ACTIVE) {
 				if (isBinding)
 					return;
 				boolean active = notification.getNewBooleanValue();
 				if (active) {
 					bind();
 				} else {
 					unbind();
 				}
 			}
 		}
 	}
 }
	/**
	* Copyright (c) 2011, 2015 - Lunifera GmbH (Gross Enzersdorf, Austria), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* Florian Pirchner - Initial implementation
	*/
	package org.eclipse.osbp.ecview.core.common.editpart.emf.binding;

	import org.eclipse.core.databinding.Binding;
	import org.eclipse.core.databinding.observable.list.IObservableList;
	import org.eclipse.emf.common.notify.Notification;
	import org.eclipse.emf.common.notify.impl.AdapterImpl;
	import org.eclipse.osbp.ecview.core.common.binding.IECViewBindingManager;
	import org.eclipse.osbp.ecview.core.common.editpart.DelegatingEditPartManager;
	import org.eclipse.osbp.ecview.core.common.editpart.binding.IBindableListEndpointEditpart;
	import org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingSetEditpart;
	import org.eclipse.osbp.ecview.core.common.editpart.binding.IListBindingEditpart;
	import org.eclipse.osbp.ecview.core.common.editpart.emf.ElementEditpart;
	import org.eclipse.osbp.ecview.core.common.model.binding.BindingPackage;
	import org.eclipse.osbp.ecview.core.common.model.binding.YBindingEndpoint;
	import org.eclipse.osbp.ecview.core.common.model.binding.YBindingUpdateStrategy;
	import org.eclipse.osbp.ecview.core.common.model.binding.YListBinding;
	import org.eclipse.osbp.ecview.core.common.model.binding.YListBindingEndpoint;
	import org.eclipse.osbp.ecview.core.databinding.emf.common.ECViewUpdateListStrategy;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

	// TODO: Auto-generated Javadoc
	/**
	* Implementation of {@link IBindingSetEditpart}.
	*/
	public class ListBindingEditpart extends ElementEditpart<YListBinding> implements IListBindingEditpart {

	/** The Constant LOGGER. */
	private static final Logger LOGGER = LoggerFactory.getLogger(ListBindingEditpart.class);

	/** The target value. */
	private IBindableListEndpointEditpart targetValue;

	/** The model value. */
	private IBindableListEndpointEditpart modelValue;

	/** The bound. */
	private boolean bound;

	/** The binding. */
	private Binding binding;

	private ActiveAdapter adapter = new ActiveAdapter();

	private boolean isBinding;

	/**
	* A default constructor.
	*/
	public ListBindingEditpart() {
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.ecview.core.common.editpart.emf.ElementEditpart#
	* handleModelSet(int, org.eclipse.emf.common.notify.Notification)
	*/
	@Override
	protected void handleModelSet(int featureId, Notification notification) {
	checkDisposed();

	boolean shouldRebind = false;
	switch (featureId) {
	case BindingPackage.YLIST_BINDING__TARGET_ENDPOINT:
	YBindingEndpoint YBindingEndpoint = (YBindingEndpoint) notification.getNewValue();

	IBindableListEndpointEditpart editPart = (IBindableListEndpointEditpart) getEditpart(viewContext,
	YBindingEndpoint);
	internalSetTargetValue(editPart);

	shouldRebind = true;
	break;
	case BindingPackage.YLIST_BINDING__MODEL_ENDPOINT:
	YBindingEndpoint = (YBindingEndpoint) notification.getNewValue();

	editPart = (IBindableListEndpointEditpart) getEditpart(viewContext, YBindingEndpoint);
	internalSetModelValue(editPart);

	shouldRebind = true;
	break;
	default:
	break;
	}

	if (shouldRebind) {
	unbind();
	bind();
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
	* #setTargetEndpoint(org.eclipse.osbp.ecview.core.common.editpart.binding.
	* IBindableEndpointEditpart)
	*/
	public void setTargetEndpoint(IBindableListEndpointEditpart target) {
	try {
	checkDisposed();

	// set the element by using the model
	//
	YListBinding yBinding = getModel();
	YListBindingEndpoint yElement = target != null ? (YListBindingEndpoint) target.getModel() : null;
	yBinding.setTargetEndpoint(yElement);
	// BEGIN SUPRESS CATCH EXCEPTION
	} catch (RuntimeException e) {
	// END SUPRESS CATCH EXCEPTION
	LOGGER.error("{}", e);
	throw e;
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
	* #getTargetEndpoint()
	*/
	public IBindableListEndpointEditpart getTargetEndpoint() {
	checkDisposed();

	if (targetValue == null) {
	loadTargetValue();
	}
	return targetValue;
	}

	/**
	* Loads the content of the view.
	*/
	protected void loadTargetValue() {
	if (targetValue == null) {
	YBindingEndpoint yValue = getModel().getTargetEndpoint();
	internalSetTargetValue((IBindableListEndpointEditpart) getEditpart(viewContext, yValue));
	}
	}

	/**
	* May be invoked by a model change and the content of the edit part should
	* be set.
	*
	* @param targetValue
	* The content to be set
	*/
	protected void internalSetTargetValue(IBindableListEndpointEditpart targetValue) {
	if (this.targetValue != null) {
	YBindingEndpoint newEP = (YBindingEndpoint) this.targetValue.getModel();
	newEP.eAdapters().remove(adapter);
	}

	this.targetValue = targetValue;

	if (this.targetValue != null) {
	YBindingEndpoint newEP = (YBindingEndpoint) this.targetValue.getModel();
	newEP.eAdapters().add(adapter);
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
	* #setModelEndpoint(org.eclipse.osbp.ecview.core.common.editpart.binding.
	* IBindableEndpointEditpart)
	*/
	public void setModelEndpoint(IBindableListEndpointEditpart model) {
	try {
	checkDisposed();

	// set the element by using the model
	//
	YListBinding yBinding = getModel();
	YListBindingEndpoint yElement = model != null ? (YListBindingEndpoint) model.getModel() : null;
	yBinding.setModelEndpoint(yElement);
	// BEGIN SUPRESS CATCH EXCEPTION
	} catch (RuntimeException e) {
	// END SUPRESS CATCH EXCEPTION
	LOGGER.error("{}", e);
	throw e;
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
	* #getModelEndpoint()
	*/
	public IBindableListEndpointEditpart getModelEndpoint() {
	checkDisposed();

	if (modelValue == null) {
	loadModelValue();
	}
	return modelValue;
	}

	/**
	* Loads the content of the view.
	*/
	protected void loadModelValue() {
	if (modelValue == null) {
	YBindingEndpoint yValue = getModel().getModelEndpoint();
	internalSetModelValue((IBindableListEndpointEditpart) getEditpart(viewContext, yValue));
	}
	}

	/**
	* May be invoked by a model change and the content of the edit part should
	* be set.
	*
	* @param modelValue
	* The content to be set
	*/
	protected void internalSetModelValue(IBindableListEndpointEditpart modelValue) {
	this.modelValue = modelValue;
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
	* #isBound()
	*/
	@Override
	public boolean isBound() {
	checkDisposed();

	return bound;
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
	* #bind()
	*/
	@Override
	public void bind() {
	checkDisposed();

	if (bound) {
	return;
	}

	try {
	isBinding = true;
	IECViewBindingManager bindingManager = null;
	if (getBindindSet() != null) {
	bindingManager = getBindindSet().getBindingManager();
	} else {
	bindingManager = getViewContext(getModel()).getService(IECViewBindingManager.class.getName());
	}
	if (bindingManager != null) {
	if (getTargetEndpoint() == null \|\| getModelEndpoint() == null) {
	LOGGER.warn("Endpoints are null");
	return;
	}

	IObservableList target = getTargetEndpoint().getObservable();
	YBindingEndpoint targetEP = (YBindingEndpoint) getTargetEndpoint().getModel();
	if (!targetEP.isActive()) {
	target.dispose();
	return;
	}
	IObservableList model = getModelEndpoint().getObservable();

	if (target == null) {
	LOGGER.error("TargetValue must never be null! {}", getTargetEndpoint());
	return;
	}

	if (model == null) {
	LOGGER.error("ModelValue must never be null! {}", getModelEndpoint());
	return;
	}

	ECViewUpdateListStrategy modelToTargetStrategy = getValueUpdateStrategy(
	getModel().getModelToTargetStrategy());
	ECViewUpdateListStrategy targetToModelStrategy = getValueUpdateStrategy(
	getModel().getTargetToModelStrategy());
	binding = bindingManager.bindList(target, model, targetToModelStrategy, modelToTargetStrategy);
	binding.updateModelToTarget();

	// set bound to true if everything went fine
	bound = true;

	} else {
	LOGGER.error("BindingManager is null!. No bindings processed!");
	}
	} finally {
	isBinding = false;
	}
	}

	/**
	* Gets the value update strategy.
	*
	* @param strategy
	* the strategy
	* @return the value update strategy
	*/
	private ECViewUpdateListStrategy getValueUpdateStrategy(YBindingUpdateStrategy strategy) {
	ECViewUpdateListStrategy result = null;
	switch (strategy) {
	case UPDATE:
	result = new ECViewUpdateListStrategy(ECViewUpdateListStrategy.POLICY_UPDATE);
	break;
	case NEVER:
	result = new ECViewUpdateListStrategy(ECViewUpdateListStrategy.POLICY_NEVER);
	break;
	case ON_REQUEST:
	result = new ECViewUpdateListStrategy(ECViewUpdateListStrategy.POLICY_ON_REQUEST);
	break;
	default:
	result = new ECViewUpdateListStrategy(ECViewUpdateListStrategy.POLICY_UPDATE);
	}
	return result;
	}

	/**
	* Returns the binding set this binding belongs to.
	*
	* @return the bindind set
	*/
	protected IBindingSetEditpart getBindindSet() {
	if (getModel().getBindingSet() == null) {
	return null;
	}
	return DelegatingEditPartManager.getInstance().findEditpart(getModel().getBindingSet());
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
	* #unbind()
	*/
	@Override
	public void unbind() {

	if(!isDisposed()) {
	checkDisposed();
	} else {
	LOGGER.warn("{}", "Why is this list binding already disposed? Seems to be related to StrategyLayout");
	return;
	}

	if (!bound) {
	return;
	}

	try {
	if (binding != null) {
	if (binding.getModel() != null)
	binding.getModel().dispose();
	if (binding.getTarget() != null)
	binding.getTarget().dispose();
	binding.dispose();
	binding = null;
	}
	} finally {
	bound = false;
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.osbp.ecview.core.common.editpart.emf.ElementEditpart#
	* internalDispose()
	*/
	@Override
	protected void internalDispose() {
	try {
	if (binding != null) {
	binding.dispose();
	binding = null;
	}
	if (modelValue != null) {
	modelValue.dispose();
	modelValue = null;
	}
	if (targetValue != null) {
	targetValue.dispose();
	targetValue = null;
	}
	} finally {
	super.internalDispose();
	}
	}

	/*
	* (non-Javadoc)
	*
	* @see
	* org.eclipse.osbp.ecview.core.common.editpart.binding.IBindingEditpart
	* #getBinding()
	*/
	@Override
	public Binding getBinding() {
	return binding;
	}

	class ActiveAdapter extends AdapterImpl {
	@Override
	public void notifyChanged(Notification notification) {
	if (notification.getFeature() == BindingPackage.Literals.YBINDING_ENDPOINT__ACTIVE) {
	if (isBinding)
	return;
	boolean active = notification.getNewBooleanValue();
	if (active) {
	bind();
	} else {
	unbind();
	}
	}
	}
	}
	}