DefaultExpanderResolver (Drools :: Compiler 7.68.0.Final API)

java.lang.Object
- org.drools.compiler.lang.dsl.DefaultExpanderResolver

All Implemented Interfaces:

ExpanderResolver
```
public class DefaultExpanderResolver
extends Object
implements ExpanderResolver
```
The default expander resolver will provide instances of the DefaultExpander. The DefaultExpander uses templates to provide DSL and pseudo natural language support.

Constructor Summary

Constructors
Constructor	Description
`DefaultExpanderResolver()`	Create an empty resolver, which you will then call addExpander multiple times, to map a specific expander with a name that will be found in the drl after the expander keyword.
`DefaultExpanderResolver(Reader reader)`	This will load up a DSL from the reader specified.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addExpander(String name, Expander expander)`	Add an expander with the given name, which will be used by looking for the "expander" keyword in the DRL.
`Expander`	`get(String name, String config)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DefaultExpanderResolver
```
public DefaultExpanderResolver()
```
    Create an empty resolver, which you will then call addExpander multiple times, to map a specific expander with a name that will be found in the drl after the expander keyword.
  - DefaultExpanderResolver
```
public DefaultExpanderResolver(Reader reader)
                        throws IOException
```
    This will load up a DSL from the reader specified. This will make the expander available to any parser regardless of name. The DSL expander will be the default expander. This is the constructor most people should use.
    
    Throws:
    
    IOException
- Method Detail
  - addExpander
```
public void addExpander(String name,
                        Expander expander)
```
    Add an expander with the given name, which will be used by looking for the "expander" keyword in the DRL. If a default expander is installed, it will always be returned if none matching the given name can be found. You don't need to use this unless you have multiple expanders/DSLs involved when compiling multiple rule packages at the same time. If you don't know what that sentence means, you probably don't need to use this method.
  - get
```
public Expander get(String name,
                    String config)
```
    Specified by:
    
    get in interface ExpanderResolver