TreePattern.Var (Jenetics 6.3.0)

java.lang.Object
- io.jenetics.ext.rewriting.TreePattern.Decl<V>
- - io.jenetics.ext.rewriting.TreePattern.Var<V>

Type Parameters:

V - the node type the tree-pattern is working

All Implemented Interfaces:

Serializable, Comparable<TreePattern.Var<V>>

Enclosing class:

TreePattern<V>
```
public static final class TreePattern.Var<V>
extends TreePattern.Decl<V>
implements Comparable<TreePattern.Var<V>>, Serializable
```
Represents a placeholder (variable) for an arbitrary sub-tree. A pattern variable is identified by its name. The pattern DSL denotes variable names with a leading '$' character, e.g. $x, $y or $my_var. It is one of two implementations of the sealed TreePattern.Decl class.

See Also:

TreePattern.Val, Serialized Form

Implementation Note:

This class is comparable by it's name.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`compareTo(TreePattern.Var<V> var)`
`boolean`	`equals(Object obj)`
`int`	`hashCode()`
`String`	`name()`	Return the name of the variable.
`static <V> TreePattern.Var<V>`	`of(String name)`	Return a new variable with the given name.
`String`	`toString()`

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

- Method Detail
  - name
```
public String name()
```
    Return the name of the variable.
    
    Returns:
    
    the variable name
  - compareTo
```
public int compareTo(TreePattern.Var<V> var)
```
    Specified by:
    
    compareTo in interface Comparable<V>
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - of
```
public static <V> TreePattern.Var<V> of(String name)
```
    Return a new variable with the given name.
    
    Type Parameters:
    
    V - the node type the tree-pattern is working on
    
    Parameters:
    
    name - the name of the variable
    
    Returns:
    
    a new variable with the given name
    
    Throws:
    
    NullPointerException - if the given name is null
    
    IllegalArgumentException - if the given name is not a valid Java identifier