```
public class DeveloperSettings
extends Object
```
A singleton holder for the developer settings. Start with an empty settings map. The Setup class will read "developer.properties" from the "config" sub-directory of the Vitro home directory, and load its settings. If the file doesn't exist, or doesn't contain values for certain properties, those properties will keep their default values. An AJAX request can be used to update the properties. If the request has multiple values for a property, the first value will be used. If the request does not contain a value for a property, that property will keep its current value. The property names in "developer.properties" are not suitable as fields in the HTML panel, because they contain periods. For the HTML panel, we translate those periods to underscores. If the ENABLED flag is not set, then getBinary() will return false for all keys, and getString() will return the empty string. This simplifies the logic in the client code. Use getRawSettingsMap() to display the actual values in the developer panel.

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`getBoolean(Key key)`	If developerMode is enabled, return the boolean value of the stored setting.
`static DeveloperSettings`	`getInstance()`
`Map<String,Object>`	`getRawSettingsMap()`	Get the values of all the settings, by element ID, regardless of whether developerMode is enabled or not.
`String`	`getString(Key key)`	If developerMode is enabled and the setting has a value, return that value.
`String`	`toString()`
`void`	`updateFromProperties(Properties properties)`
`void`	`updateFromRequest(Map<String,String[]> parameterMap)`

Class DeveloperSettings