Operator (SciJava Javadocs 0-SNAPSHOT API)

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java.lang.Object
- org.scijava.parsington.Token
- - org.scijava.parsington.Operator

All Implemented Interfaces:

Comparable<Operator>

Direct Known Subclasses:

Function, Group
```
public class Operator
extends Token
implements Comparable<Operator>
```
A mathematical operator is a special symbol or "verb" which defines a relation between "nouns" (i.e.: literals and variables). For binary operators, it is infix (between the nouns); for unary operators, it is either prefix (preceding the noun) or postfix (following the noun).

Author:

Curtis Rueden

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class Operator.Associativity

Constructor Summary

Constructors
Constructor and Description

Operator(String symbol, int arity, Operator.Associativity associativity, double precedence)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`int`	`compareTo(Operator that)`
`int`	`getArity()` 1 for unary, 2 for binary, etc.
`Operator.Associativity`	`getAssociativity()`
`double`	`getPrecedence()`
`Operator`	`instance()`
`boolean`	`isInfix()` True iff the operator is an infix operator (e.g., `a-b`).
`boolean`	`isLeftAssociative()`
`boolean`	`isPostfix()` True iff the operator is a postfix operator (e.g., `a'`).
`boolean`	`isPrefix()` True iff the operator is a prefix operator (e.g., `-a`).
`boolean`	`isRightAssociative()`

Methods inherited from class org.scijava.parsington.Token
getToken, toString

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

Constructor Detail

Operator

public Operator(String symbol,
                int arity,
                Operator.Associativity associativity,
                double precedence)

Method Detail
- getArity
```
public int getArity()
```
  1 for unary, 2 for binary, etc.
- getAssociativity
```
public Operator.Associativity getAssociativity()
```
- isLeftAssociative
```
public boolean isLeftAssociative()
```
- isRightAssociative
```
public boolean isRightAssociative()
```
- isInfix
```
public boolean isInfix()
```
  True iff the operator is an infix operator (e.g., a-b).
- isPrefix
```
public boolean isPrefix()
```
  True iff the operator is a prefix operator (e.g., -a).
- isPostfix
```
public boolean isPostfix()
```
  True iff the operator is a postfix operator (e.g., a').
- getPrecedence
```
public double getPrecedence()
```
- instance
```
public Operator instance()
```
- compareTo
```
public int compareTo(Operator that)
```
  Specified by:
  
  compareTo in interface Comparable<Operator>

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