net.dpml.library.info
Class FilterDirective

java.lang.Object
  net.dpml.lang.AbstractDirective
      net.dpml.library.info.FilterDirective

All Implemented Interfaces:

Filter, Serializable

Direct Known Subclasses:

FeatureFilterDirective, SimpleFilterDirective

public abstract class FilterDirective

extends AbstractDirective

implements Filter

Base class for filter directives.

Version:

1.0.0

Author:

The Digital Product Meta Library

See Also:

Serialized Form

Constructor Summary

FilterDirective(String token)
Creation of a new anonymous resource directive.

Method Summary

boolean	equals(Object other) Compare this object with another for equality.
String	getToken() Return the filter token.
abstract String	getValue(Resource resource) Return the filter value.
int	hashCode() Compute the hash value.

Methods inherited from class net.dpml.lang.AbstractDirective

equals, hashArray, hashValue

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FilterDirective

public FilterDirective(String token)

Creation of a new anonymous resource directive.

Parameters:

token - the filter token

Method Detail

getToken

public String getToken()

Return the filter token.

Specified by:

getToken in interface Filter

Returns:

the token

getValue

public abstract String getValue(Resource resource)
                         throws ResourceNotFoundException

Return the filter value.

Specified by:

getValue in interface Filter

Parameters:

resource - the enclosing resource

Returns:

the resolved value

Throws:

ResourceNotFoundException - if the feature references a resource that is unknown

equals

public boolean equals(Object other)

Compare this object with another for equality.

Overrides:

equals in class AbstractDirective

Parameters:

other - the other object

Returns:

true if equal

hashCode

public int hashCode()

Compute the hash value.

Overrides:

hashCode in class AbstractDirective

Returns:

the hashcode value