Package org.kuali.rice.krad.uif.view

Interface ViewModel

All Superinterfaces:
Serializable
All Known Implementing Classes:
DocumentFormBase, DummyLoginForm, DynaForm, IncidentReportForm, InitiatedDocumentInfoForm, InquiryForm, LookupForm, MaintenanceDocumentForm, SessionTimeoutForm, TransactionalDocumentFormBase, UifFormBase
public interface ViewModel extends Serializable
Interface that must be implemented for classes the provide the backing data (model) for a View.

Since the View relies on helper properties from the model it is necessary the backing object implement the ViewModel interface. Note model objects can extend UifFormBase which implements the ViewModel interface.

Author:
Kuali Rice Team (rice.collab@kuali.org)

  • Method Details

    • preBind

      void preBind(javax.servlet.http.HttpServletRequest request)
      Called before Spring binds the request to the form to allow for pre-processing before setting values.
      Parameters:
      request - request object containing the query parameters

    • postBind

      void postBind(javax.servlet.http.HttpServletRequest request)
      Called after Spring binds the request to the form and before the controller method is invoked
      Parameters:
      request - request object containing the query parameters

    • preRender

      void preRender(javax.servlet.http.HttpServletRequest request)
      Called after the controller has finished executing, but before rendering occurs.
      Parameters:
      request - request object containing the query parameters

    • getViewId

      String getViewId()
      Unique Id for the View instance. This is specified for a view in its definition by setting the 'id' property.
      Returns:
      String view id

    • setViewId

      void setViewId(String viewId)
      Setter for the unique view id
      Parameters:
      viewId -

    • getViewName

      String getViewName()
      Name for the View instance. This is specified for a view in its definition by setting the 'id' property. The name is not necessary unique and cannot be used by itself to retrieve a view. Typically it is used with other parameters to identify a view with a certain type (view type)
      Returns:
      String view name

    • setViewName

      void setViewName(String viewName)
      Setter for the view name
      Parameters:
      viewName -

    • getViewTypeName

      UifConstants.ViewType getViewTypeName()
      Name for the type of view being requested. This can be used to find View instances by request parameters (not necessary the unique id)
      Returns:
      String view type name

    • setViewTypeName

      void setViewTypeName(UifConstants.ViewType viewTypeName)
      Setter for the view type name
      Parameters:
      viewTypeName -

    • getView

      View getView()
      View instance associated with the model. Used to render the user interface
      Returns:
      View

    • setView

      void setView(View view)
      Setter for the view instance
      Parameters:
      view -

    • getViewHelperService

      ViewHelperService getViewHelperService() throws IllegalAccessException, InstantiationException
      Returns the view helper service instance that was configured for the current view.
      Returns:
      instance of view helper service, null if view is null
      Throws:
      IllegalAccessException
      InstantiationException

    • getViewPostMetadata

      ViewPostMetadata getViewPostMetadata()
      Gets the ViewPostMetadata that has been built up from processing of a view.

      The view post metadata is used to read information about the view that was rendered when a post occurs. For example, you might need to check whether a particular flag was enabled for the rendered view when processing the post logic

      Returns:
      ViewPostMetadata instance for the previously processed view

    • setViewPostMetadata

      void setViewPostMetadata(ViewPostMetadata viewPostMetadata)
      See Also:

    • getPageId

      String getPageId()
      Id for the current page being displayed within the view
      Returns:
      String page id

    • setPageId

      void setPageId(String pageId)
      Setter for the current page id
      Parameters:
      pageId -

    • getFormPostUrl

      String getFormPostUrl()
      URL the form generated for the view should post to
      Returns:
      String form post URL

    • setFormPostUrl

      void setFormPostUrl(String formPostUrl)
      Setter for the form post URL
      Parameters:
      formPostUrl -

    • getViewRequestParameters

      Map<String,String> getViewRequestParameters()
      Map of parameters that was used to configured the View. Maintained on the form to rebuild the view on posts and session timeout
      Returns:
      Mapinvalid input: '<'String, String> view parameters

    • setViewRequestParameters

      void setViewRequestParameters(Map<String,String> viewRequestParameters)
      Setter for the view's request parameter map
      Parameters:
      viewRequestParameters - map of request parameters

    • getReadOnlyFieldsList

      List<String> getReadOnlyFieldsList()
      List of fields that should be read only on the view

      If the view being rendered supports request setting of read-only fields, the readOnlyFields request parameter can be sent to mark fields as read only that might not have been otherwise

      Note the paths specified should be the simple property names (not the full binding path). Therefore if the property name appears multiple times in the view, all instances will be set as read only

      Returns:
      List<String> read only property names
      See Also:

    • setReadOnlyFieldsList

      void setReadOnlyFieldsList(List<String> readOnlyFieldsList)
      Setter for the list of read only fields

    • getNewCollectionLines

      Map<String,Object> getNewCollectionLines()
      Holds instances for collection add lines. The key of the Map gives the collection name the line instance applies to, the Map value is an instance of the collection object class that holds the new line data
      Returns:
      Mapinvalid input: '<'String, Object> new collection lines

    • setNewCollectionLines

      void setNewCollectionLines(Map<String,Object> newCollectionLines)
      Setter for the new collection lines Map
      Parameters:
      newCollectionLines -

    • getTriggerActionId

      String getTriggerActionId()
      When the request has been triggered by an action component, gives the id for the action.
      Returns:
      String action id, or null if request was not triggered by an action component

    • setTriggerActionId

      void setTriggerActionId(String triggerActionId)
      See Also:

    • getActionParameters

      Map<String,String> getActionParameters()
      Map of parameters sent for the invoked action

      Many times besides just setting the method to call actions need to send additional parameters. For instance the method being called might do a redirect, in which case the action needs to send parameters for the redirect URL. An example of this is redirecting to a Lookup view. In some cases the parameters that need to be sent conflict with properties already on the form, and putting all the action parameters as form properties would grow massive (in addition to adds an additional step from the XML config). So this general map solves those issues.

      Returns:
      Mapinvalid input: '<'String, String> action parameters

    • setActionParameters

      void setActionParameters(Map<String,String> actionParameters)
      Setter for the action parameters map
      Parameters:
      actionParameters -

    • getClientStateForSyncing

      Map<String,Object> getClientStateForSyncing()
      Map that is populated from the component state maintained on the client

      Used when a request is made that refreshes part of the view. The current state for components (which have state that can be changed on the client), is populated into this map which is then used by the ViewHelperService to update the components so that the state is maintained when they render.

      Returns:
      Mapinvalid input: '<'String, Object> map where key is name of property or component id, and value is the property value or another map of component key/value pairs

    • getSelectedCollectionLines

      Map<String,Set<String>> getSelectedCollectionLines()
      Holds Set of String identifiers for lines that were selected in a collection from a single page. selectedCollectionLines are request level values and get reset with every page request

      When the select field is enabled for a CollectionGroup, the framework will be default bind the selected identifier strings to this property. The key of the map uniquely identifies the collection by the full binding path to the collection, and the value is a set of Strings for the checked lines.

      Returns:
      Map<String, Set<String>> map of collections and their selected lines
      See Also:

    • setSelectedCollectionLines

      void setSelectedCollectionLines(Map<String,Set<String>> selectedCollectionLines)
      Setter for the map that holds selected collection lines

    • isApplyDefaultValues

      boolean isApplyDefaultValues()
      Indicates whether default values should be applied.

      Default field values of a view need to be applied after the view life cycle completes. Otherwise, they risk getting over written.

      Returns:
      boolean true if the request was an ajax call, false if not

    • setApplyDefaultValues

      void setApplyDefaultValues(boolean applyDefaultValues)
      Set whether default values should be applied to the view

    • isEvaluateFlagsAndModes

      boolean isEvaluateFlagsAndModes()
      Determines whether edit modes and action flags should be evaluated.

      Initially this will be true causing edit modes and action flags to be evaluated on the initial request to a view. If these need to be reevaluated at some point (for a particular view instance), this flag can be set to true and causing the authorization to be reevaluated during the lifecycle.

      Returns:
      boolean true if flags and modes should be evaluate during the view lifecycle, false if not

    • setEvaluateFlagsAndModes

      void setEvaluateFlagsAndModes(boolean evaluateFlagsAndModes)
      See Also:

    • isCanEditView

      Boolean isCanEditView()
      Copy of the edit view flag to be used by subsequent requests (so they don't need to be evaluated on each request).

      If null, edit check will be performed

      See Also:

    • setCanEditView

      void setCanEditView(Boolean canEditView)
      See Also:

    • getActionFlags

      Map<String,Boolean> getActionFlags()
      Copy of the action flags on the view to be used by subsequent requests (so they don't need to be evaluated on each request).
      See Also:

    • setActionFlags

      void setActionFlags(Map<String,Boolean> actionFlags)
      See Also:

    • getEditModes

      Map<String,Boolean> getEditModes()
      Copy of the edit modes on the view to be used by subsequent requests (so they don't need to be evaluated on each request).
      See Also:

    • setEditModes

      void setEditModes(Map<String,Boolean> editModes)
      See Also:

    • getGrowlScript

      String getGrowlScript()
      Script that will run on render (view or component) for generating growl messages
      Returns:
      String JS growl script

    • setGrowlScript

      void setGrowlScript(String growlScript)
      Setter for the script that generates growls on render
      Parameters:
      growlScript -

    • getState

      String getState()
      Gets the state. This is the default location for state on KRAD forms.
      Returns:
      the state

    • setState

      void setState(String state)
      Set the state
      Parameters:
      state -

    • getUpdateComponentId

      String getUpdateComponentId()
      Id for the component that should be updated for a component refresh process
      Returns:
      String component id

    • setUpdateComponentId

      void setUpdateComponentId(String updateComponentId)
      Setter for the component id that should be refreshed
      Parameters:
      updateComponentId -

    • getUpdateComponent

      Component getUpdateComponent()
      Component instance that been built for a refresh/disclosure request.

      This is generally set by org.kuali.rice.krad.uif.lifecycle.ViewLifecycle#performComponentLifecycle(org.kuali.rice.krad.uif.view.View, java.lang.Object, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse, org.kuali.rice.krad.uif.lifecycle.ViewPostMetadata, java.lang.String) after processing the lifecycle. The form property provides access to the rendering layer.

      Returns:
      component instance for updating

    • setUpdateComponent

      void setUpdateComponent(Component updateComponent)
      See Also:

    • isAjaxRequest

      boolean isAjaxRequest()
      Indicates whether the request was made by an ajax call

      Depending on whether the request was made via ajax (versus standard browser submit) the response will be handled different. For example with an ajax request we can send back partial page updates, which cannot be done with standard submits

      If this indicator is true, getAjaxReturnType() will be used to determine how to handling the ajax return

      Returns:
      boolean true if the request was an ajax call, false if not

    • setAjaxRequest

      void setAjaxRequest(boolean ajaxRequest)
      Set the ajaxRequest
      Parameters:
      ajaxRequest -

    • getAjaxReturnType

      String getAjaxReturnType()
      Gets the return type for the ajax call

      The ajax return type indicates how the response content will be handled in the client. Typical examples include updating a component, the page, or doing a redirect.

      Returns:
      String return type
      See Also:

    • setAjaxReturnType

      void setAjaxReturnType(String ajaxReturnType)
      Setter for the type of ajax return
      Parameters:
      ajaxReturnType -

    • isUpdateComponentRequest

      boolean isUpdateComponentRequest()
      Indicates whether the request is to update a component (only applicable for ajax requests)
      Returns:
      boolean true if the request is for update component, false if not

    • isUpdatePageRequest

      boolean isUpdatePageRequest()
      Indicates whether the request is to update a page (only applicable for ajax requests)
      Returns:
      boolean true if the request is for update page, false if not

    • isUpdateDialogRequest

      boolean isUpdateDialogRequest()
      Indicates whether the request is to update a dialog (only applicable for ajax requests)
      Returns:
      boolean true if the request is for update dialog, false if not

    • isUpdateNoneRequest

      boolean isUpdateNoneRequest()
      Indicates whether the request is for a non-update of the view (only applicable for ajax requests)

      Examples of requests that do not update the view are ajax queries or requests that download a file

      Returns:
      boolean true if the request is for non-update, false if not

    • isJsonRequest

      boolean isJsonRequest()
      Indicates whether the request should return a JSON string

      When this indicator is true, the rendering process will invoke the template given by getRequestJsonTemplate() which should return a JSON string

      For JSON requests the view is not built, however a component can be retrieved and exported in the request by setting getUpdateComponentId()

      Returns:
      boolean true if request is for JSON, false if not

    • getRequestJsonTemplate

      String getRequestJsonTemplate()
      Template the will be invoked to return a JSON string

      Certain templates can be rendered to build JSON for a JSON request. The template set here (by a controller) will be rendered

      Returns:
      path to template

    • setRequestJsonTemplate

      void setRequestJsonTemplate(String requestJsonTemplate)
      Setter for the template to render for the request
      Parameters:
      requestJsonTemplate -

    • isCollectionPagingRequest

      boolean isCollectionPagingRequest()
      Indicates whether the request is for paging a collection (or sorting).
      Returns:
      boolean true if a paging request is present, false if not

    • setCollectionPagingRequest

      void setCollectionPagingRequest(boolean collectionPagingRequest)
      See Also:

    • getDialogExplanations

      Map<String,String> getDialogExplanations()
      Contains values for dialog explanation fields present on the page.

      Since multiple dialogs can be present on the same page using the generic explanation field, the values are maintained in this map using the dialog id as the key. Values are cleared on each request.

      Returns:
      map of dialog explanations, where key is the dialog id and map value is the explanation

    • setDialogExplanations

      void setDialogExplanations(Map<String,String> dialogExplanations)
      See Also:

    • getDialogResponses

      Map<String,DialogResponse> getDialogResponses()
      Map containing dialog responses for a request 'conversation'.

      When a controller methods requests a dialog, the response is collected on the return call and placed into this map. The key to the map is the id for the dialog. Since a single controller method can spawn multiple dialogs in a single conversation (these are actually multiple requests/responses, but part of the same action request), the responses are collected in this map. Whenever a request is encountered that is not a return, the map is cleared. This means the responses will be cleared in case the action is triggered action.

      Returns:
      map of dialog responses, where map key is the dialog id and the map value is the dialog response object

    • getDialogResponse

      DialogResponse getDialogResponse(String dialogId)
      Helper method to get a dialog response for the given dialog id.
      Parameters:
      dialogId - id of the dialog to get response for
      Returns:
      dialog response object, or null if response does not exist
      See Also:

    • setDialogResponses

      void setDialogResponses(Map<String,DialogResponse> dialogResponses)
      See Also:

    • getExtensionData

      Map<String,Object> getExtensionData()
      A generic map for framework pieces (such as component modifiers) that need to dynamically store data to the form
      Returns:
      Mapinvalid input: '<'String, Object>

    • setExtensionData

      void setExtensionData(Map<String,Object> extensionData)
      Setter for the generic extension data map
      Parameters:
      extensionData -