Java API:Enumerated Fields
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Revision as of 01:57, 6 October 2011 by imported>Aeric
About Enumerated Fields
There are multiple types of enumerated fields. The type is specified using FieldMetaDataBean.setType(String type). These are the possible values. (They are passed within quotes, as strings):
- PICK_LIST
- GLOBAL_PICK_LIST
- DEPENDENT_PICK_LIST
- MULTI_PICK_LIST
- RADIO_BUTTON
- MULTI_CHECK_BOX
The standard field methods are used to work with enumerated fields:
- Functions.addFieldMetaData(FieldMetaDataBean fmdb);
- Functions.updateFieldMetaData(FieldMetaDataBean fmdb);
- Functions.deleteFieldMetaData(FieldMetaDataBean fmdb);
- Considerations
-
- Add/update/delete is not supported for global picklists. All other enumeration types are supported.
- Add/update/delete is not supported for global picklists. All other enumeration types are supported.
Retrieving Field Metadata
import com.platform.beans.EnumerationDetailsBean.*; //Retrieving the FieldMetaData FieldMetaDataBean fmdb = getFieldMetaData("myObject", "picklistField"); StringBuilder sb = new StringBuilder(); //Get the field name String fieldName = fmdb.getTableColumn(); //Get the field type // (PICK_LIST, DEPENDENT_PICK_LIST, RADIO_BUTTON, MULTI_CHECK_BOX, GLOBAL_PICKLIST) String fieldType = fmdb.getType(); //String object Id String objectId = fmdb.getObjectId(); //Get the field label String fieldLabel = fmdb.getTitle(); // Echo the attributes sb.append("Field Name -> " + fieldName + "\n") ; sb.append("Field Type -> " + fieldType + "\n"); sb.append("Object Id -> " + objectId + "\n"); sb.append("Field Label -> " + fieldLabel + "\n"); //Enumeration Details EnumerationDetailsBean enumerationDetails = fmdb.getEnumerationDetails(); //Internal Id of the Enumerated Type field String name = enumerationDetails.getName(); sb.append("Internal Picklist Id -> " + name + "\n"); //Sort flag Boolean sortFlag = enumerationDetails.getSortFlag(); sb.append("Sort flag -> " + sortFlag + "\n"); //Show first value as default flag Boolean showFirstValAsDefaultFlag = enumerationDetails.getShowFirstValueAsDefault(); //Get the list of Enumeration Items List<EnumerationItemBean> enumerationItems = enumerationDetails.getEnumerationItems(); //Extracting the Item details for(EnumerationItemBean item : enumerationItems) { //Enumeration Item Id String id = item.getId(); sb.append("Enumeration Item Id -> " + id + "\n"); //Enumeration Item label String enumeratedItemLabel = item.getPicklistLabel(); sb.append("Enumeration Item Label -> " + enumeratedItemLabel + "\n"); //Enumeration Item Value String enumeratedItemValue = item.getPicklistValue(); sb.append("Enumeration Item Value -> " + enumeratedItemValue + "\n"); //Text color of the Enumeration Item Label String textColor = item.getTextColor(); sb.append("Enuemration Label text color -> " + textColor + "\n"); //Text background color of the Enumeration Item label String textBackgroundColor = item.getTextBgColor(); sb.append("Enumeration Label text background color -> " + textBackgroundColor + "\n"); //Show only image flag Boolean showOnlyImageFlag = item.getShowOnlyImage(); sb.append("Show only image flag -> " + showOnlyImageFlag + "\n"); //Indicates if the item is an option group laabel Boolean flagIsOptGroup = item.getFlagIsOptgroup(); sb.append("Is options group flag -> " + flagIsOptGroup + "\n"); //Order of the Item Integer itemOrder = item.getItemOrder(); sb.append("Item order -> " + itemOrder + "\n"); } Functions.debug(sb.toString());
Adding a Picklist Field
To create an enumerated field:
- Add the new field to the object using Functions.addFieldMetaData().
- Add the list of items, using the Functions.updateFieldMetaData().
//Instantiate FieldMetaDataBean FieldMetaDataBean fmdb = new FieldMetaDataBean(); //Setting the objectId fmdb.setObjectId("myObject"); //Setting the field name fmdb.setTableColumn("priority_picklist"); //Setting the field type fmdb.setType("PICK_LIST"); //Setting the field label fmdb.setTitle("Priorities"); //Setting enumeration details EnumerationDetailsBean enumDetails = new EnumerationDetailsBean(); String[] items = {"priority", "urgent", "rush", "second-day delivery"}; List<String> itemList = Arrays.asList(items); enumDetails.setEnumerationItems(itemList); //Sorting the enumerated values enumDetails.setSortFlag(true); fmdb.setEnumerationDetails(enumDetails); //On successful addition of the field, the field name name is returned String fieldName = Functions.addFieldMetaData(fmdb); Functions.debug("Added field " + fieldName);
Updating a Picklist
To update a specific item in an enumeration, it's ID must be specified.
To update the entire field:
- The new list of items replaces the old one. All existing enumeration items must be included in the list, or they are not preserved.
- For dependent picklists, all existing items plus the ParentToChildMapping beans must be provided.
import com.platform.beans.EnumerationDetailsBean.*; //Instantiate FieldMetaDataBean FieldMetaDataBean fmdb = getFieldMetaData("myObject", "picklistField"); //Setting enumeration details EnumerationDetailsBean enumDetails = new EnumerationDetailsBean(); String[] items = {"priority", "rush", "second-day delivery"}; List<String> itemList = Arrays.asList(items); enumDetails.setEnumerationItems(itemList); //Sorting the enuerated values enumDetails.setSortFlag(true); //Creating a list of Enumeration items List<EnumerationItemBean> listEnumItems = new ArrayList<EnumerationItemBean>(); //Setting up an enumeration item EnumerationItemBean enumItemBean = new EnumerationItemBean(); //Specify the ID of the enumeration item to be update, //where ENUMERATION_ITEM_ID is retrieved using getFieldMetaData() //enumItemBean.setId(ENUMERATION_ITEM_ID) //setting the label of the Enumerated item enumItemBean.setPicklistLabel("Label 1"); //setting the value of the Enumerated item enumItemBean.setPicklistValue("value1"); //Setting the text color of the Enumerated item label enumItemBean.setTextColor("#000000"); //Setting the Back ground color of the Enumerated item label enumItemBean.setTextBgColor("#FFFFFF"); //Adding enumeration item to the list. In a similar way we can add more items listEnumItems.add(enumItemBean); //Setting the list of Enumeration Items in the EnumerationDetailsBean enumDetails.setEnumerationItems(listEnumItems); //Setting in the Enumeration details in the FieldMetaDataBean fmdb.setEnumerationDetails(enumDetails); //On successful addition of the field, the field name is returned String fieldName = Functions.updateFieldMetaData(fmdb);
Define Mapping for a Dependent Picklist
A Dependent Picklist is one where the list of choices depends on a selection made in a parent field (another field of type enumerated). This sample code maps each choice in a parent picklist to the list of values in the dependent picklist.
import com.platform.beans.EnumerationDetailsBean.*; //Retrieve the metadata for the dependent picklist FieldMetaDataBean dependentPicklistMeta = getFieldMetaData("myObject", "dependentField"); String parentFieldName = dependentPicklistMeta.getParentPicklistTableColumn(); FieldMetaDataBean parentEnumeratedFieldMeta = getFieldMetaData("myObject", parentFieldName); EnumerationDetailsBean parentEnumerationDetails = parentEnumeratedFieldMeta.getEnumerationDetails(); List<EnumerationItemBean> parentEnumerationItemList = parentEnumerationDetails.getEnumerationItems(); Map<String,String> parentItemValToItemIdMap = new HashMap<String,String>(); for(EnumerationItemBean item : parentEnumerationItemList) { String itemValue = item.getPicklistValue(); String itemLabel = item.getPicklistLabel(); String itemId = item.getId(); parentItemValToItemIdMap.put(itemValue,itemId); } EnumerationDetailsBean dependentEnumerationDetails = dependentPicklistMeta.getEnumerationDetails(); List<EnumerationItemBean> dependentEnumerationItemList = dependentEnumerationDetails.getEnumerationItems(); Map<String,String> dependentItemValToItemIdMap = new HashMap<String,String>(); for(EnumerationItemBean item : dependentEnumerationItemList) { String itemValue = item.getPicklistValue(); String itemLabel = item.getPicklistLabel(); String itemId = item.getId(); dependentItemValToItemIdMap.put(itemValue,itemId); } List<ParentToChildMapping> pTc = new ArrayList<ParentToChildMapping>(); String dependentItemId = dependentItemValToItemIdMap.get("dep1"); String parentItemId = parentItemValToItemIdMap.get("value1"); ParentToChildMapping tmpPTCMap = new ParentToChildMapping(); tmpPTCMap.setDependentPicklistItemId(dependentItemId); tmpPTCMap.setParentPicklistItemId(parentItemId); pTc.add(tmpPTCMap); dependentEnumerationDetails.setParentToChildMapping(pTc); String response = Functions.updateFieldMetaData(dependentPicklistMeta);