Java tutorial
/******************************************************************************* * Copyright 2017 Capital One Services, LLC and Bitwise, Inc. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * http://www.apache.org/licenses/LICENSE-2.0 * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *******************************************************************************/ package hydrograph.ui.propertywindow.widgets.customwidgets.runtimeproperty; import hydrograph.ui.common.util.Constants; import hydrograph.ui.common.util.ParameterUtil; import org.apache.commons.lang.StringUtils; import org.eclipse.jface.viewers.ICellModifier; import org.eclipse.jface.viewers.Viewer; import org.eclipse.swt.widgets.Item; /** * The Class RunTimePropertyCellModifier. * * @author Bitwise */ public class RunTimePropertyCellModifier implements ICellModifier { private Viewer viewer; private static final String PROPERTY_NAME = "PROPERTY_NAME"; private static final String PROPERTY_VALUE = "PROPERTY_VALUE"; /** * Instantiates a new run time property cell modifier. * * @param viewer * the viewer */ public RunTimePropertyCellModifier(Viewer viewer) { this.viewer = viewer; } /** * Returns whether the property can be modified * * @param element * the element * @param property * the property * @return boolean */ public boolean canModify(Object element, String property) { // Allow editing of all values return true; } /** * Returns the value for the property * * @param element * the element * @param property * the property * @return Object */ public Object getValue(Object element, String property) { RuntimeProperties p = (RuntimeProperties) element; if (PROPERTY_NAME.equals(property)) { return p.getPropertyName(); } else if (PROPERTY_VALUE.equals(property)) return p.getPropertyValue(); else return null; } /** * Modifies the element * * @param element * the element * @param property * the property * @param value * the value */ public void modify(Object element, String property, Object value) { if (viewer.getData(Constants.WINDOW_TITLE) != null && StringUtils .equalsIgnoreCase((String) viewer.getData(Constants.WINDOW_TITLE), Constants.SUBJOB_WINDOW_LABEL)) customizedModifyForSubgraph(element, property, value); else { if (element instanceof Item) element = ((Item) element).getData(); RuntimeProperties runtimePropertyRow = (RuntimeProperties) element; if (StringUtils.equals(PROPERTY_NAME, property)) { if (ParameterUtil.isParameter((String) value)) { runtimePropertyRow.setPropertyValue((String) value); } runtimePropertyRow.setPropertyName(((String) value)); } else if (StringUtils.equals(PROPERTY_VALUE, property)) { if (ParameterUtil.isParameter((String) value)) { runtimePropertyRow.setPropertyName((String) value); } runtimePropertyRow.setPropertyValue((String) value); } } // Force the viewer to refresh viewer.refresh(); } private void customizedModifyForSubgraph(Object element, String property, Object value) { if (element instanceof Item) element = ((Item) element).getData(); RuntimeProperties runtimePropertyRow = (RuntimeProperties) element; if (StringUtils.equals(PROPERTY_NAME, property)) { runtimePropertyRow.setPropertyName(((String) value)); } else if (StringUtils.equals(PROPERTY_VALUE, property)) { runtimePropertyRow.setPropertyValue((String) value); } } }