org.jfree.resourceloader
Interface ResourceData
public interface ResourceData
A resource data object encapsulates the raw data of an resource at a given
point in the past.
Any change to the resource increases the version number. Version numbers
are not needed to be checked regulary, but must be checked on each call to
'getVersion()'.
This definitly does *not* solve the problem of concurrent modifications; if
you need to be sure that the resource has not been altered between the last
call to 'getVersion' and 'getResource..' external locking mechanism have to
be implemented.
- Author:
- Thomas Morgner
CONTENT_LENGTH
static final java.lang.String CONTENT_LENGTH
- See Also:
- Constant Field Values
CONTENT_TYPE
static final java.lang.String CONTENT_TYPE
- See Also:
- Constant Field Values
FILENAME
static final java.lang.String FILENAME
- See Also:
- Constant Field Values
getResourceAsStream
java.io.InputStream getResourceAsStream(ResourceManager caller)
throws ResourceLoadingException
- Throws:
ResourceLoadingException
getResource
byte[] getResource(ResourceManager caller)
throws ResourceLoadingException
- This is dangerous, especially if the resource is large.
- Parameters:
caller
-
- Returns:
-
- Throws:
ResourceLoadingException
getResource
int getResource(ResourceManager caller,
byte[] target,
int offset,
int length)
throws ResourceLoadingException
- Tries to read data into the given byte-array.
- Parameters:
caller
- target
- offset
- length
-
- Returns:
- the number of bytes read or -1 if no more data can be read.
- Throws:
ResourceLoadingException
getAttribute
java.lang.Object getAttribute(java.lang.String key)
getKey
ResourceKey getKey()
getVersion
long getVersion(ResourceManager caller)
throws ResourceLoadingException
- Throws:
ResourceLoadingException