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association_editor [2012/03/30 17:44]
srdjan.lukovic created 		association_editor [2012/07/09 10:50] (current)
srdjan.lukovic [GUI Code]
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-This sample demonstrates distinctive feature, dynamically linking objects.+====== Selection List ====== 
 + 
 +**Selection List** is a [[SOLoist Sample Applications|SOLoist sample application]] that shows how persistent selections of a subset of objects linked over an association can be implemented by means of another (subsetting) association and the appropriate configuration of the //Element Component//. 
 + 
 +The intention is to enable selection of a subset of //Bank Advisers// that are linked to a particular object of //Person// by checkboxes. 
 + 
 +The particular object of //Person// whose //Bank Advisers// are shown in the list is fetched via a Service Access Point component. It provides the fetched object to its output pin that is wired to the input pin of the list box. 
 + 
 +The list box is configured to render all objects linked to the slot //myBankAdvisers//, but to edit the (subsetting) slot //successfulAdvisers//. 
 + 
 +This way, instead of using Boolean attributes as flags, a subsetting association is used to store the selection. The selection is inherently persistent. 
 + 
 +==== Live example ==== 
 + 
 +[[http://soloistdemo.org/SampleApplications/associationeditor.html]]\\ 
 +[[http://soloistdemo.org/SampleApplications/oql?q=SELECT+p%2C+p.name%2C+p.gender%2C+p.age%2C+p.dateOfBirth%2C+p.height%2C+p.isMarried%2C+p.photo%2C+p.rootFolder%0D%0AFROM+Person+p&f=html | OQL Query: Persons]] 
 +|{{screen:associationeditor.png?250}}| 
 + 
 +===== UML Model ===== 
 +{{associationeditor.png}} 
 + 
 +===== Business Logic Code ===== 
 +None. 
 + 
 +===== GUI Code ===== 
 +<code java> 
 +package rs.sol.sampleapps; 
 + 
 +import rs.sol.sampleapps.listener.ObjectSpaceInit; 
 +import rs.sol.soloist.helpers.init.DefaultContextInit; 
 +import rs.sol.soloist.helpers.init.Initializer; 
 +import rs.sol.soloist.helpers.init.InitializerFailedException; 
 +import rs.sol.soloist.server.builtindomains.builtindatatypes.Text; 
 +import rs.sol.soloist.server.builtindomains.common.ClassifierInstanceDescriptor; 
 +import rs.sol.soloist.server.builtindomains.common.ElementDescriptor; 
 +import rs.sol.soloist.server.guiconfiguration.components.GUIApplicationComponent; 
 +import rs.sol.soloist.server.guiconfiguration.components.GUILabelComponent; 
 +import rs.sol.soloist.server.guiconfiguration.components.GUIPanelComponent; 
 +import rs.sol.soloist.server.guiconfiguration.construction.GUIComponentBinding; 
 +import rs.sol.soloist.server.guiconfiguration.elementcomponents.GUIEdit; 
 +import rs.sol.soloist.server.guiconfiguration.layout.TableLayoutData; 
 +import rs.sol.soloist.server.guiconfiguration.nonvisualcompoments.GUIFindSingleInstanceSAPComponent; 
 +import rs.sol.soloist.server.guiconfiguration.style.GUIContext; 
 +import rs.sol.soloist.server.guiconfiguration.style.GUINavigatorFeature; 
 +import rs.sol.soloist.server.guiconfiguration.style.GUIObjectSetting; 
 +import rs.sol.soloist.server.guiconfiguration.style.GUIPictureFeature; 
 +import rs.sol.soloist.server.guiconfiguration.style.GUITextFeature; 
 +import rs.sol.soloist.server.server.SoloistServiceServlet; 
 + 
 +public enum AssociationEditor implements Initializer{ 
 + 
 + INSTANCE; 
 +  
 + @Override 
 + public void init() throws InitializerFailedException  
 + { 
 + GUIApplicationComponent page = new GUIApplicationComponent(); 
 + page.setName("AssociationEditor");  
 + SoloistServiceServlet.registerApplication(page); 
 + page.setContext(createContextAndStyles()); 
 +  
 + GUIPanelComponent root = GUIPanelComponent.createFlow(page); 
 +  
 + GUILabelComponent title = GUILabelComponent.create(root, "Association Editor"); 
 + title.setStyle("titleStyle"); 
 +  
 + GUIPanelComponent topPanel = GUIPanelComponent.createFlow(root); 
 + topPanel.setStyle("topPanel"); 
 + GUIPanelComponent table = GUIPanelComponent.createTable(topPanel); // panel with table layout 
 +  
 + GUIFindSingleInstanceSAPComponent findJanneRoe = GUIFindSingleInstanceSAPComponent.create(table,  
 + Person.FQ_TYPE_NAME,  
 + Person.FQPropertyNames.desc,  
 + (ClassifierInstanceDescriptor)ElementDescriptor.create(Text.fromString(ObjectSpaceInit.JANNE_ROE_IDENTIFIER))); 
 +  
 + GUIEdit editList = GUIEdit.createList(table, Person.PROPERTIES.successfulAdvisers, Person.PROPERTIES.myBankAdvisers); 
 + editList.setLayoutData(TableLayoutData.create(0, 0)); 
 + GUIComponentBinding.create(findJanneRoe.opValue(), editList.ipElement()); 
 + GUIComponentBinding.create(findJanneRoe.opValue(), editList.ipSlotValueElement()); 
 +  
 + editList.setSize("250px", "200px"); 
 + editList.setStyle("listEditor"); 
 + } 
 + 
 + private GUIContext createContextAndStyles() { 
 + GUIContext context = new GUIContext(); 
 + DefaultContextInit.getRoot().addContext(context); 
 +  
 + GUIObjectSetting person = GUIObjectSetting.create(context, Person.CLASSIFIER); 
 + GUITextFeature.createName(person, Person.PROPERTIES.name); 
 + GUITextFeature.createFixedSeparator(person, ":"); 
 + GUITextFeature.createDescription(person, Person.PROPERTIES.age); 
 + GUIPictureFeature.createSmallIcon(person, "images/icons/person.png"); 
 + GUINavigatorFeature.createSubnodes(person, Person.FQPropertyNames.accounts); 
 +  
 + return context; 
 + } 
 +} 
 +</code>

Trace: • wizard • persons_and_bank_accounts • deck_and_layouts • configuration • dynamic_panel • element_component

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