org.springframework.core.io
Class AbstractResource

Direct Known Subclasses:

ClassPathResource, FileSystemResource, InputStreamResource, UrlResource, ServletContextResource

public abstract class AbstractResource

implements Resource

Convenience base class for Resource implementations, pre-implementing typical behavior.

The "exists" method will check whether a File or InputStream can be opened; "isOpen" will always return false; "getFile" throws an exception; and "toString" will return the description.

Author:

Juergen Hoeller

Since: 28.12.2003

public boolean equals(Object obj)

This implementation compares description strings.

See Also:

Resource.getDescription()

public boolean exists()

This implementation checks whether a File can be opened, falling back to whether an InputStream can be opened. This will cover both directories and content resources.

public File getFile()
              throws java.io.IOException

This implementation throws a FileNotFoundException, assuming that the resource cannot be resolved to an absolute file path.

public int hashCode()

This implementation returns the description's hash code.

See Also:

Resource.getDescription()

public boolean isOpen()

This implementations always returns false.

public String toString()

This implementation returns the description of this resource.

See Also:

Resource.getDescription()