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AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based @AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step. This library is a superset of AspectJ weaver and hence also of AspectJ runtime.

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/*******************************************************************************
 * Copyright (c) 2012 Contributors.
 * All rights reserved.
 * This program and the accompanying materials are made available
 * under the terms of the Eclipse Public License v 2.0
 * which accompanies this distribution and is available at
 * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.txt
 *
 * Contributors:
 *   John Kew (vmware)          initial implementation
 *   Lyor Goldstein (vmware)	add support for weaved class being re-defined
 *******************************************************************************/
package org.aspectj.weaver.tools.cache;

/**
 * Represents a class which has been cached
 */
public class CachedClassEntry {
    enum EntryType {
        GENERATED,
        WEAVED,
        IGNORED,
    }

    private final CachedClassReference ref;
    private final byte[] weavedBytes;
    private final EntryType type;

    public CachedClassEntry(CachedClassReference ref, byte[] weavedBytes, EntryType type) {
        this.weavedBytes = weavedBytes;
        this.ref = ref;
        this.type = type;
    }

    public String getClassName() {
        return ref.getClassName();
    }

    public byte[] getBytes() {
        return weavedBytes;
    }

    public String getKey() {
        return ref.getKey();
    }

    public boolean isGenerated() {
        return type == EntryType.GENERATED;
    }

    public boolean isWeaved() {
        return type == EntryType.WEAVED;
    }

    public boolean isIgnored() {
        return type == EntryType.IGNORED;
    }

    @Override
    public int hashCode() {
        return getClassName().hashCode()
             + getKey().hashCode()
             + type.hashCode()
             ;
    }

    @Override
    public boolean equals(Object obj) {
        if (obj == null)
            return false;
        if (this == obj)
            return true;
        if (getClass() != obj.getClass())
            return false;

        CachedClassEntry    other=(CachedClassEntry) obj;
        if (getClassName().equals(other.getClassName())
         && getKey().equals(other.getKey())
         && (type == other.type)) {
             return true;
        } else {
            return false;
        }
    }

    @Override
    public String toString() {
        return getClassName() + "[" + type + "]";
    }
}