Resource (IG Aggregated Javadoc 2023.11.1 Documentation)

```
public interface Resource
```
A Resource represents any content that can be served through the ResourceHandler.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`long`	`getLastModified()`	Returns the timestamp when the resource has been last modified (expressed in `TimeUnit.MILLISECONDS`).
`Optional<Long>`	`getSize()`	Returns the size of the resource, when known.
`String`	`getType()`	Returns the media type of this resource.
`boolean`	`hasChangedSince(long sinceTime)`	Returns `true` if the resource has changed since the given timestamp (expressed in ms).
`InputStream`	`open()`	Returns a new `InputStream` used to read resource's content.

- Method Detail
  - open
```
InputStream open()
          throws IOException
```
    Returns a new InputStream used to read resource's content. Note that this is the responsibility of the caller to close the stream.
    
    Returns:
    
    a new InputStream
    
    Throws:
    
    IOException - if the stream cannot be opened
  - getType
```
String getType()
```
    Returns the media type of this resource.
    
    Returns:
    
    the media type of this resource.
  - getLastModified
```
long getLastModified()
```
    Returns the timestamp when the resource has been last modified (expressed in TimeUnit.MILLISECONDS).
    
    Returns:
    
    the timestamp when the resource has been last modified (ms)
  - hasChangedSince
```
boolean hasChangedSince(long sinceTime)
```
    Returns true if the resource has changed since the given timestamp (expressed in ms).
    
    Parameters:
    
    sinceTime - timestamp to compare with this resource's last modified timestamp.
    
    Returns:
    
    true if the resource has changed since the given timestamp (expressed in ms).
  - getSize
```
Optional<Long> getSize()
```
    Returns the size of the resource, when known.
    
    Returns:
    
    The size of the resource, when known, otherwise an empty optional