Requirement (Eoulsan 2.6.1 API)

All Known Implementing Classes:

AbstractRequirement, DockerRequirement, PathRequirement, RserveRequirement
```
public interface Requirement
```
This interface define a requirement for an Eoulsan Step.

Since:

2.0

Author:

Laurent Jourdren

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`configure(Set<Parameter> parameters)`	Configure the requirement.
`String`	`getName()`	The name of the requirement.
`Set<Parameter>`	`getParameters()`	Get the parameters of the requirement
`void`	`install(Progress progress)`	Install the requirement.
`boolean`	`isAvailable()`	Test if the requirement is available.
`boolean`	`isInstallable()`	Test if the requirement is installable.
`boolean`	`isOptional()`	Test if the requirement is optional.

- Method Detail
  - getName
```
String getName()
```
    The name of the requirement.
    
    Returns:
    
    the name of the requirement
  - isOptional
```
boolean isOptional()
```
    Test if the requirement is optional.
    
    Returns:
    
    true if he requirement is optional
  - isAvailable
```
boolean isAvailable()
```
    Test if the requirement is available.
    
    Returns:
    
    true if he requirement is optional
  - isInstallable
```
boolean isInstallable()
```
    Test if the requirement is installable.
    
    Returns:
    
    true if the requirement is installable
  - getParameters
```
Set<Parameter> getParameters()
```
    Get the parameters of the requirement
    
    Returns:
    
    a set of parameters
  - configure
```
void configure(Set<Parameter> parameters)
        throws EoulsanException
```
    Configure the requirement.
    
    Parameters:
    
    parameters - the parameters of the requirement
    
    Throws:
    
    EoulsanException - if an error occurs while configuring the requirement
  - install
```
void install(Progress progress)
      throws EoulsanException
```
    Install the requirement.
    
    Throws:
    
    EoulsanException - if the requirement cannot be installed