ImmutableEnvelop (Charba - J2CL and GWT charts library based on CHART.JS)

java.lang.Object
- org.pepstock.charba.client.commons.ImmutableEnvelop<T>

Type Parameters:

T - type of envelop content.

All Implemented Interfaces:

Envelop

Direct Known Subclasses:

AnnotationEnvelop, BaseEnvelop, CallbacksEnvelop, ConfigurationEnvelop, DataEnvelop, DataLabelsEnvelop, ItemsEnvelop, LabelsEnvelop, OptionsEnvelop
```
public abstract class ImmutableEnvelop<T>
extends Object
implements Envelop
```
This object is a container of hidden object which can set by constructor and immutable afterwards.

Author:

Andrea "Stock" Stocchero

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`ImmutableEnvelop(T content)`	Create an envelop with the content passed as argument.
`protected`	`ImmutableEnvelop(T content, boolean nullable)`	Create an envelop with the content passed as argument and a flag to set if the content can be nullable.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`T`	`getContent()`	Returns the content of envelop.
`boolean`	`hasContent()`	Returns `true` if the content of envelop is not `null`.
`boolean`	`isNullable()`	Returns `true` if the content of envelop can be `null`.

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

- Constructor Detail
  - ImmutableEnvelop
```
protected ImmutableEnvelop(T content)
```
    Create an envelop with the content passed as argument.
    
    Parameters:
    
    content - content to set as initial value
  - ImmutableEnvelop
```
protected ImmutableEnvelop(T content,
                           boolean nullable)
```
    Create an envelop with the content passed as argument and a flag to set if the content can be nullable.
    
    Parameters:
    
    content - content to set as initial value
    
    nullable - if true, the content can be null
- Method Detail
  - getContent
```
public final T getContent()
```
    Returns the content of envelop.
    
    Returns:
    
    the content of envelop
  - hasContent
```
public final boolean hasContent()
```
    Description copied from interface: Envelop
    
    Returns true if the content of envelop is not null.
    
    Specified by:
    
    hasContent in interface Envelop
    
    Returns:
    
    true if the content of envelop is not null
  - isNullable
```
public final boolean isNullable()
```
    Description copied from interface: Envelop
    
    Returns true if the content of envelop can be null.
    
    Specified by:
    
    isNullable in interface Envelop
    
    Returns:
    
    true if the content of envelop can be null