Package org.terracotta.context.query

Class Matcher<T>

java.lang.Object

org.terracotta.context.query.Matcher<T>

Type Parameters:

T - the enclosing type of the objects that match

public abstract class Matcher<T>
extends Object

A matching object that can be used to filter the node-set in a context query chain.

Field Summary

Fields

Modifier and Type	Field	Description
private final Class<T>	boundType

Constructor Summary

Constructors

Constructor	Description
Matcher()

Method Summary

Modifier and Type	Method	Description
private static <T extends Matcher<?>> Class<?>	getSafeType(Class<T> fromClass)
final boolean	matches(Object object)	Returns true if this object matches successfully.
protected abstract boolean	matchesSafely(T object)	Returns true if the supplied object matches against this matcher.

Methods inherited from class java.lang.Object

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

Field Details

boundType

private final Class<T> boundType

Constructor Details

Matcher

public Matcher()

Method Details

getSafeType

private static <T extends Matcher<?>> Class<?> getSafeType(Class<T> fromClass)

matches

public final boolean matches(Object object)

Returns true if this object matches successfully.

This method checks for a type match against the erased type of this matcher and then defers to the matchesSafely(Object) of this matcher with the type-checked and cast object.

Parameters:

object - object to be checked

Returns:

true if the object matches

matchesSafely

protected abstract boolean matchesSafely(T object)

Returns true if the supplied object matches against this matcher.

Parameters:

object - object to check for a match

Returns:

true on a match