org.objectfabric.TIndexedBase.txt Maven / Gradle / Ivy

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    /*
     * %name%.
     */

    protected final TIndexed.Version%name% getVersion%name%_(Transaction current, int index) {
        TIndexed.Version%name% version = (TIndexed.Version%name%) current.getVersion(this);

        /*
         * If we have already written to this field, use this.
         */
        if (version != null && version.getBit(index))
            return version;

        version = findPrivateVersion%name%(current.getPrivateSnapshotVersions(), index);

        /*
         * Same if it was in a private snapshot.
         */
        if (version != null)
            return version;

        /*
         * Otherwise keep track of read and find previous value.
         */
        if (!current.ignoreReads()) {
            TIndexed%name%Read read = (TIndexed%name%Read) current.getRead(this);

            if (read == null) {
                read = (TIndexed%name%Read) createRead();
                current.putRead(read);
            }

            read.setBit(index);
        }

        return findPublicVersion%name%(current, index);
    }

    private final TIndexed.Version%name% findPrivateVersion%name%(Version[][] versions, int index) {
        if (versions != null) {
            for (int i = versions.length - 1; i >= 0; i--) {
                TIndexed.Version%name% version = (TIndexed.Version%name%) TransactionBase.getVersion(versions[i], this);

                if (version != null && version.getBit(index))
                    return version;
            }
        }

        return null;
    }

    final TIndexed.Version%name% findPublicVersion%name%(Transaction transaction, int index) {
        for (int i = transaction.getPublicSnapshotVersions().length - 1; i > TransactionManager.OBJECTS_VERSIONS_INDEX; i--) {
            TObject.Version[] delta = transaction.getPublicSnapshotVersions()[i];
            TIndexed.Version%name% version = (TIndexed.Version%name%) TransactionBase.getVersion(delta, this);

            if (version != null && version.getBit(index))
                return version;
        }

        return (TIndexed.Version%name%) shared_();
    }