com.redhat.ceylon.javax.lang.model.element.Name Maven / Gradle / Ivy
/*
* Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.redhat.ceylon.javax.lang.model.element;
import com.redhat.ceylon.javax.lang.model.element.Element;
/**
* An immutable sequence of characters. When created by the same
* implementation, objects implementing this interface must obey the
* general {@linkplain Object#equals equals contract} when compared
* with each other. Therefore, {@code Name} objects from the same
* implementation are usable in collections while {@code Name}s from
* different implementations may not work properly in collections.
*
* An empty {@code Name} has a length of zero.
*
*
In the context of {@linkplain
* com.redhat.ceylon.javax.annotation.processing.ProcessingEnvironment annotation
* processing}, the guarantees for "the same" implementation must
* include contexts where the {@linkplain com.redhat.ceylon.javax.annotation.processing
* API mediated} side effects of {@linkplain
* com.redhat.ceylon.javax.annotation.processing.Processor processors} could be visible
* to each other, including successive annotation processing
* {@linkplain com.redhat.ceylon.javax.annotation.processing.RoundEnvironment rounds}.
*
* @author Joseph D. Darcy
* @author Scott Seligman
* @author Peter von der Ahé
* @see com.redhat.ceylon.javax.lang.model.util.Elements#getName
* @since 1.6
*/
public interface Name extends CharSequence {
/**
* Returns {@code true} if the argument represents the same
* name as {@code this}, and {@code false} otherwise.
*
*
Note that the identity of a {@code Name} is a function both
* of its content in terms of a sequence of characters as well as
* the implementation which created it.
*
* @param obj the object to be compared with this element
* @return {@code true} if the specified object represents the same
* name as this
* @see Element#equals
*/
boolean equals(Object obj);
/**
* Obeys the general contract of {@link Object#hashCode Object.hashCode}.
*
* @see #equals
*/
int hashCode();
/**
* Compares this name to the specified {@code CharSequence}. The result
* is {@code true} if and only if this name represents the same sequence
* of {@code char} values as the specified sequence.
*
* @return {@code true} if this name represents the same sequence
* of {@code char} values as the specified sequence, {@code false}
* otherwise
*
* @param cs The sequence to compare this name against
* @see String#contentEquals(CharSequence)
*/
boolean contentEquals(CharSequence cs);
}