org.gcube.data.trees.patterns
Class LeafPattern<T,C extends Constraint<? super T>>

java.lang.Object
  org.gcube.data.trees.patterns.AbstractPattern
      org.gcube.data.trees.patterns.LeafPattern<T,C>

Type Parameters:

C - the type of the constraint associated with the pattern.

T - the type of the value constrained by the pattern.

All Implemented Interfaces:

Serializable, Pattern

Direct Known Subclasses:

BoolPattern, CalendarPattern, DatePattern, NumPattern, TextPattern, URIPattern

public abstract class LeafPattern<T,C extends Constraint<? super T>>
extends AbstractPattern

A Patterns over Leafs.

Author:

Fabio Simeoni

See Also:

Serialized Form

Field Summary

protected C

constraint

Constructor Summary

LeafPattern(C c)
Creates and instance with a given constraint.

Method Summary

C	constraint()
boolean	equals(Object obj)
int	hashCode()
boolean	matches(Node n) Indicates whether a node matches a pattern.
abstract String	name() Returns the name of the pattern.
void	prune(Node n) Prunes a node of all the descendants that are not required to match the pattern.
String	toString()
protected abstract T	valueOf(String s) Returns the typed equivalent of a leaf's value.

Methods inherited from class org.gcube.data.trees.patterns.AbstractPattern

idPattern, setIdPattern

Methods inherited from class java.lang.Object

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

Field Detail

constraint

protected C extends Constraint<? super T> constraint

Constructor Detail

LeafPattern

public LeafPattern(C c)

Creates and instance with a given constraint.

Parameters:

c - the constraint

Method Detail

prune

public final void prune(Node n)
                 throws Exception

Prunes a node of all the descendants that are not required to match the pattern.

Specified by:

prune in interface Pattern

Overrides:

prune in class AbstractPattern

Parameters:

n - the node.

Throws:

Exception - if the node does not match the pattern.

constraint

public C constraint()

matches

public boolean matches(Node n)

Indicates whether a node matches a pattern.

Specified by:

matches in interface Pattern

Overrides:

matches in class AbstractPattern

Parameters:

n - the node.

Returns:

true if it does, false otherwise.

valueOf

protected abstract T valueOf(String s)
                      throws Exception

Returns the typed equivalent of a leaf's value.

Parameters:

s - the value

Returns:

the typed value

Throws:

Exception

name

public abstract String name()

Returns the name of the pattern.

Returns:

the name

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class AbstractPattern

equals

public boolean equals(Object obj)

Overrides:

equals in class AbstractPattern