Selects
Select boxes are HTML controls of the form of
<select></select>
Binding to a Process Variable
A select box can be bound to a process variable using the cam-variable-name
directive:
<select cam-variable-name="foo"
cam-variable-type="String">
<option>bar</option>
<option>zar</option>
</select>
Supported Variable Types
The select box supports the same value types as <input type="text">
.
Populating the Options from a Variable
The <option>
entries can be populated using a variable. The name of the variable can be provided using the cam-choices
directive:
<select cam-variable-name="PRODUCT_TYPE"
cam-variable-type="String"
cam-choices="AVAILABLE_PRODUCT_TYPES">
</select>
The directive cam-choices
expects the values to be a List or Map (Object). In case of a Map (Object), the keys of the map are used as values of the options. java.util.Map
and java.util.List
are supported but must be serialized as JSON:
Map<String, String> productTypes = new HashMap<String, String>();
productTypes.put("001", "Notebook");
productTypes.put("002", "Server");
productTypes.put("003", "Workstation");
execution.setVariable("AVAILABLE_PRODUCT_TYPES",
objectValue(customerData)
.serializationDataFormat(SerializationDataFormats.JSON)
.create());
Would be rendered as
<select cam-variable-name="PRODUCT_TYPE"
cam-variable-type="String"
cam-choices="AVAILABLE_PRODUCT_TYPES">
<option value="001">Notebook</option>
<option value="002">Server</option>
<option value="003">Workstation</option>
</select>