Equ (CodeTaco)

java.lang.Object
- com.codetaco.math.Equ<T>

```
public class Equ<T>
extends Object
```
Create an instance of this class and send it an evaluate() message. The result will always be an instance of Double or String or ZonedDateTime.
You can also register your own functions and operators by calling the static methods registerFunction and registerOperator. These add to a static Map so there are then available for the duration of your application.
A support instance can be handed to an instance of Equ with the setSupport() method. This must be done prior to calling evaluate. When a variable is found in the equation then the support instance is asked to instantiate the variable. It is expected that it will do what is necessary to come up with it. The test cases show a support instance that maintains a local Map of variable name / value pairs. But a database could be used as well.

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class Equ.Builder<B>

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static <B> Equ.Builder<B>`	`builder(Class<B> returnType)`
`T`	`evaluate()`
`Double`	`getDouble(String variableName)`
`Integer`	`getInteger(String variableName)`
`Long`	`getLong(String variableName)`
`String`	`getString(String variableName)`
`ZonedDateTime`	`getZonedDateTime(String variableName)`
`String`	`showRPN()`
`String`	`toString()`
`void`	`variable(String variableName, Object value)`

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

Method Detail

builder

public static <B> Equ.Builder<B> builder(Class<B> returnType)

evaluate
```
public T evaluate()
```

variable

public void variable(String variableName,
                     Object value)

getString

public String getString(String variableName)

toString
```
public String toString()
```
Overrides:

toString in class Object

getLong

public Long getLong(String variableName)

getInteger

public Integer getInteger(String variableName)

getZonedDateTime

public ZonedDateTime getZonedDateTime(String variableName)

getDouble

public Double getDouble(String variableName)

showRPN
```
public String showRPN()
```