Clojure (Clojure API)

Sitelet https://clojure.github.io/clojure/javadoc/clojure/java/api/Clojure.html

java.lang.Object
- clojure.java.api.Clojure

```
public class Clojure
extends java.lang.Object
```
The Clojure class provides a minimal interface to bootstrap Clojure access from other JVM languages. It provides:
1. The ability to use Clojure's namespaces to locate an arbitrary var, returning the var's IFn interface.
2. A convenience method read for reading data using Clojure's edn reader
To lookup and call a Clojure function:
```
 IFn plus = Clojure.var("clojure.core", "+");
 plus.invoke(1, 2);
```
Functions in clojure.core are automatically loaded. Other namespaces can be loaded via require:
```
 IFn require = Clojure.var("clojure.core", "require");
 require.invoke(Clojure.read("clojure.set"));
```
IFns can be passed to higher order functions, e.g. the example below passes inc to map:
```
 IFn map = Clojure.var("clojure.core", "map");
 IFn inc = Clojure.var("clojure.core", "inc");
 map.invoke(inc, Clojure.read("[1 2 3]"));
```

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static java.lang.Object`	`read(java.lang.String s)` Read one object from the String s.
`static IFn`	`var(java.lang.Object qualifiedName)` Returns the var associated with qualifiedName.
`static IFn`	`var(java.lang.Object ns, java.lang.Object name)` Returns an IFn associated with the namespace and name.

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

- Method Detail
  - var
```
public static IFn var(java.lang.Object qualifiedName)
```
    Returns the var associated with qualifiedName.
    
    Parameters:
    
    qualifiedName - a String or clojure.lang.Symbol
    
    Returns:
    
    a clojure.lang.IFn
  - var
```
public static IFn var(java.lang.Object ns,
                      java.lang.Object name)
```
    Returns an IFn associated with the namespace and name.
    
    Parameters:
    
    ns - a String or clojure.lang.Symbol
    
    name - a String or clojure.lang.Symbol
    
    Returns:
    
    a clojure.lang.IFn
  - read
```
public static java.lang.Object read(java.lang.String s)
```
    Read one object from the String s. Reads data in the edn format.
    
    Parameters:
    
    s - a String
    
    Returns:
    
    an Object, or nil.