Config (SmartClient Enterprise Server API 10.1p (2022-05-28))

java.lang.Object
- org.apache.commons.collections.map.AbstractMapDecorator
- - com.isomorphic.collections.DataTypeMap
  - - com.isomorphic.base.Config

All Implemented Interfaces:

java.util.Map
```
public class Config
extends DataTypeMap
```
This class provides config parameters to all the Java classes in the SmartClient Framework by reading a series of .properties files including server.properties.
If running in a servlets environment, you must use the "Init" servlet and use <load-on-startup> to ensure it initializes before any calls are made to this class.
Then the Config class can be used to read settings as follows:
```
 Config config = Config.getGlobal();
 String propertyValue = (String)config.getProperty("propertyName");
 
```
If running outside of a servlet environment, the following call should be made from the startup thread of the application before any Config APIs are called:
```
 Config.initGlobalConfig();
 
```

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`static java.lang.Object`	`getProperty(java.lang.String propertyName)` Returns a property extracted from the SmartClient global configuration file, server.properties.
`java.lang.Object`	`put(java.lang.Object key, java.lang.Object value)` Programmatically inject a value into the global config.
`void`	`putAll(java.util.Map map)` Programmatically inject a set of values in a Map into the global config.

- Method Detail
  - getProperty
```
public static java.lang.Object getProperty(java.lang.String propertyName)
```
    Returns a property extracted from the SmartClient global configuration file, server.properties. Note that the Init servlet must be used if you wish to make use of this API.
    
    Parameters:
    
    propertyName - The name of the property to retrieve
    
    Returns:
    
    The property value, or null if it was not found
  - put
```
public java.lang.Object put(java.lang.Object key,
                            java.lang.Object value)
```
    Programmatically inject a value into the global config. Note, the timing of this is key. Your programmatic overrides or additions must take place after the core config has loaded from the framework's various .properties files, but before anything else in the system.
    The simplest way to achieve this is to have your programmatic changes to config invoked from a servlet which is configured in web.xml with a load-on-startup parameter of 2, like this:
```
 <servlet>
     <servlet-name>MyConfigChanges</servlet-name>
     <servlet-class>com.company.servlet.MyConfigChanges</servlet-class>
     <load-on-startup>2</load-on-startup>
 </servlet>
```
    The setting of "2" is important, because your code needs to run after the SmartClient Init servlet, but before anything else.
    If running outside of a servlet environment, you should invoke your config override code from the startup thread of the application, after the call to Config.initGlobalConfig() described in the class overview docs, but before any Config APIs are called.
    Overrides:
    
    put in class org.apache.commons.collections.map.AbstractMapDecorator
    
    Parameters:
    
    key - The key of the property to set
    
    value - The new value for the property
    
    Returns:
    
    The property's old value, or null if it was not previously set
  - putAll
```
public void putAll(java.util.Map map)
```
    Programmatically inject a set of values in a Map into the global config. See Config.put(Object, Object) for important information about timing issues associated with this API.
    
    Overrides:
    
    putAll in class org.apache.commons.collections.map.AbstractMapDecorator
    
    Parameters:
    
    map - A Map of property values to apply to the config

Class Config

Method Summary

Method Detail

getProperty

put

putAll