jdk/src/java.base/share/classes/sun/reflect/generics/reflectiveObjects/LazyReflectiveObjectGenerator.java
author martin
Thu, 06 Nov 2014 13:18:44 -0800
changeset 27489 cf53b2c02ebb
parent 25859 3317bb8137f4
child 28056 0cab6eb92852
permissions -rw-r--r--
8062771: Core reflection should use final fields whenever possible Reviewed-by: psandoz, darcy
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
     1
/*
5506
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 2
diff changeset
     2
 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved.
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
90ce3da70b43 Initial load
duke
parents:
diff changeset
     4
 *
90ce3da70b43 Initial load
duke
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
90ce3da70b43 Initial load
duke
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
5506
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 2
diff changeset
     7
 * published by the Free Software Foundation.  Oracle designates this
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
     8
 * particular file as subject to the "Classpath" exception as provided
5506
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 2
diff changeset
     9
 * by Oracle in the LICENSE file that accompanied this code.
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
    10
 *
90ce3da70b43 Initial load
duke
parents:
diff changeset
    11
 * This code is distributed in the hope that it will be useful, but WITHOUT
90ce3da70b43 Initial load
duke
parents:
diff changeset
    12
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
90ce3da70b43 Initial load
duke
parents:
diff changeset
    13
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
90ce3da70b43 Initial load
duke
parents:
diff changeset
    14
 * version 2 for more details (a copy is included in the LICENSE file that
90ce3da70b43 Initial load
duke
parents:
diff changeset
    15
 * accompanied this code).
90ce3da70b43 Initial load
duke
parents:
diff changeset
    16
 *
90ce3da70b43 Initial load
duke
parents:
diff changeset
    17
 * You should have received a copy of the GNU General Public License version
90ce3da70b43 Initial load
duke
parents:
diff changeset
    18
 * 2 along with this work; if not, write to the Free Software Foundation,
90ce3da70b43 Initial load
duke
parents:
diff changeset
    19
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
90ce3da70b43 Initial load
duke
parents:
diff changeset
    20
 *
5506
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 2
diff changeset
    21
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 2
diff changeset
    22
 * or visit www.oracle.com if you need additional information or have any
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 2
diff changeset
    23
 * questions.
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
    24
 */
90ce3da70b43 Initial load
duke
parents:
diff changeset
    25
90ce3da70b43 Initial load
duke
parents:
diff changeset
    26
package sun.reflect.generics.reflectiveObjects;
90ce3da70b43 Initial load
duke
parents:
diff changeset
    27
90ce3da70b43 Initial load
duke
parents:
diff changeset
    28
import sun.reflect.generics.factory.GenericsFactory;
90ce3da70b43 Initial load
duke
parents:
diff changeset
    29
import sun.reflect.generics.visitor.Reifier;
90ce3da70b43 Initial load
duke
parents:
diff changeset
    30
90ce3da70b43 Initial load
duke
parents:
diff changeset
    31
90ce3da70b43 Initial load
duke
parents:
diff changeset
    32
/**
90ce3da70b43 Initial load
duke
parents:
diff changeset
    33
 * Common infrastructure for things that lazily generate reflective generics
90ce3da70b43 Initial load
duke
parents:
diff changeset
    34
 * objects.
90ce3da70b43 Initial load
duke
parents:
diff changeset
    35
 * <p> In all these cases, one needs produce a visitor that will, on demand,
90ce3da70b43 Initial load
duke
parents:
diff changeset
    36
 * traverse the stored AST(s) and reify them into reflective objects.
90ce3da70b43 Initial load
duke
parents:
diff changeset
    37
 * The visitor needs to be initialized with a factory, which will be
90ce3da70b43 Initial load
duke
parents:
diff changeset
    38
 * provided when the instance is initialized.
90ce3da70b43 Initial load
duke
parents:
diff changeset
    39
 * The factory should be cached.
90ce3da70b43 Initial load
duke
parents:
diff changeset
    40
 *
90ce3da70b43 Initial load
duke
parents:
diff changeset
    41
*/
90ce3da70b43 Initial load
duke
parents:
diff changeset
    42
public abstract class LazyReflectiveObjectGenerator {
27489
cf53b2c02ebb 8062771: Core reflection should use final fields whenever possible
martin
parents: 25859
diff changeset
    43
    private final GenericsFactory factory; // cached factory
2
90ce3da70b43 Initial load
duke
parents:
diff changeset
    44
90ce3da70b43 Initial load
duke
parents:
diff changeset
    45
    protected LazyReflectiveObjectGenerator(GenericsFactory f) {
90ce3da70b43 Initial load
duke
parents:
diff changeset
    46
        factory = f;
90ce3da70b43 Initial load
duke
parents:
diff changeset
    47
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
    48
90ce3da70b43 Initial load
duke
parents:
diff changeset
    49
    // accessor for factory
90ce3da70b43 Initial load
duke
parents:
diff changeset
    50
    private GenericsFactory getFactory() {
90ce3da70b43 Initial load
duke
parents:
diff changeset
    51
        return factory;
90ce3da70b43 Initial load
duke
parents:
diff changeset
    52
    }
90ce3da70b43 Initial load
duke
parents:
diff changeset
    53
90ce3da70b43 Initial load
duke
parents:
diff changeset
    54
    // produce a reifying visitor (could this be typed as a TypeTreeVisitor?
90ce3da70b43 Initial load
duke
parents:
diff changeset
    55
    protected Reifier getReifier(){return Reifier.make(getFactory());}
90ce3da70b43 Initial load
duke
parents:
diff changeset
    56
90ce3da70b43 Initial load
duke
parents:
diff changeset
    57
}