Examples of com.sleepycat.persist.evolve.Renamer

com.sleepycat.persist.evolve.Renamer
old class. Version 0 is implied. // {@literal @Entity}class Person { String name; } // The new class. A new version number must be assigned. // {@literal @Entity(version=1)}class Human { String fullName; } // Add the mutations. // Mutations mutations = new Mutations(); mutations.addRenamer(new Renamer("my.package.Person", 0, Human.class.getName())); mutations.addRenamer(new Renamer("my.package.Person", 0, "name", "fullName")); // Configure the mutations as described {@link Mutations here}.
In a replicated environment, renaming an entity class or secondary key field may require handling the {@link com.sleepycat.je.rep.DatabasePreemptedException} during the upgrade process.See Upgrading a Replication Group for more information.
@see com.sleepycat.persist.evolve Class Evolution @author Mark Hayes

            for (Format oldFormat : formatList) {
                if (oldFormat == null || Format.isPredefined(oldFormat)) {
                    continue;
                }
                String oldName = oldFormat.getClassName();
                Renamer renamer = mutations.getRenamer
                    (oldName, oldFormat.getVersion(), null);
                String newName =
                    (renamer != null) ? renamer.getNewName() : oldName;
                addProxiedClass(newName, false /*isKnownClass*/);
            }
            for (String className : knownClasses) {
                addProxiedClass(className, true /*isKnownClass*/);
            }

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        }


        /* Get class mutations. */
        String oldName = oldFormat.getClassName();
        int oldVersion = oldFormat.getVersion();
        Renamer renamer = mutations.getRenamer(oldName, oldVersion, null);
        Deleter deleter = mutations.getDeleter(oldName, oldVersion, null);
        Converter converter =
            mutations.getConverter(oldName, oldVersion, null);
        if (deleter != null && (converter != null || renamer != null)) {
            addInvalidMutation
                (oldFormat, null, deleter,
                 "Class Deleter not allowed along with a Renamer or " +
                 "Converter for the same class");
            return false;
        }


        /*
         * For determining the new name, arrays get special treatment.  The
         * component format is evolved in the process, and we disallow muations
         * for arrays.
         */
        String newName;
        if (oldFormat.isArray()) {
            if (deleter != null || converter != null || renamer != null) {
                Mutation mutation = (deleter != null) ? deleter :
                    ((converter != null) ? converter : renamer);
                addInvalidMutation
                    (oldFormat, null, mutation,
                     "Mutations not allowed for an array");
                return false;
            }
            Format compFormat = oldFormat.getComponentType();
            if (!evolveFormat(compFormat)) {
                return false;
            }
            Format latest = compFormat.getLatestVersion();
            if (latest != compFormat) {
                newName = (latest.isArray() ? "[" : "[L") +
                           latest.getClassName() + ';';
            } else {
                newName = oldName;
            }
        } else {
            newName = (renamer != null) ? renamer.getNewName() : oldName;
        }


        /* Try to get the new class format.  Save exception for later. */
        Format newFormat;
        String newFormatException;

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            addInvalidMutation
                (oldParent, newParent, converter,
                 "Converter is not allowed for a " + FIELD_LABEL);
            return EVOLVE_FAILURE;
        }
        Renamer renamer = mutations.getRenamer
            (oldParent.getClassName(), oldParent.getVersion(), oldName);
        String newName = newField.getName();
        if (renamer != null) {
            if (!renamer.getNewName().equals(newName)) {
                addInvalidMutation
                    (oldParent, newParent, converter,
                     "Converter is not allowed for a " + FIELD_LABEL);
                return EVOLVE_FAILURE;
            }

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                    (clsMeta.getSecondaryKeys(), oldName);
                assert oldMeta != null;
            }


            /* Get field mutations. */
            Renamer renamer = mutations.getRenamer
                (getClassName(), getVersion(), oldName);
            Deleter deleter = mutations.getDeleter
                (getClassName(), getVersion(), oldName);
            Converter converter = mutations.getConverter
                (getClassName(), getVersion(), oldName);
            if (deleter != null && (converter != null || renamer != null)) {
                evolver.addInvalidMutation
                    (this, newFormat, deleter,
                     "Field Deleter is not allowed along with a Renamer or " +
                     "Converter for the same field: " + oldName);
                evolveFailure = true;
                continue fieldLoop;
            }


            /*
             * Match old and new field by name, taking into account the Renamer
             * mutation.  If the @SecondaryKey annotation was added or removed,
             * the field will have moved from one of the two field lists to the
             * other.
             */
            String newName = (renamer != null) ?
                renamer.getNewName() : oldName;
            boolean nameChanged = false;
            if (!oldName.equals(newName)) {
                if (newToOldFieldMap == null) {
                    newToOldFieldMap = new HashMap<String, String>();
                }

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        }


        /* Get class mutations. */
        String oldName = oldFormat.getClassName();
        int oldVersion = oldFormat.getVersion();
        Renamer renamer = mutations.getRenamer(oldName, oldVersion, null);
        Deleter deleter = mutations.getDeleter(oldName, oldVersion, null);
        Converter converter =
            mutations.getConverter(oldName, oldVersion, null);
        if (deleter != null && (converter != null || renamer != null)) {
            addInvalidMutation
                (oldFormat, null, deleter,
                 "Class Deleter not allowed along with a Renamer or " +
                 "Converter for the same class");
            return false;
        }


        /*
         * For determining the new name, arrays get special treatment.  The
         * component format is evolved in the process, and we disallow muations
         * for arrays.
         */
        String newName;
        if (oldFormat.isArray()) {
            if (deleter != null || converter != null || renamer != null) {
                Mutation mutation = (deleter != null) ? deleter :
                    ((converter != null) ? converter : renamer);
                addInvalidMutation
                    (oldFormat, null, mutation,
                     "Mutations not allowed for an array");
                return false;
            }
            Format compFormat = oldFormat.getComponentType();
            if (!evolveFormat(compFormat)) {
                return false;
            }
            Format latest = compFormat.getLatestVersion();
            if (latest != compFormat) {
                newName = (latest.isArray() ? "[" : "[L") +
                           latest.getClassName() + ';';
            } else {
                newName = oldName;
            }
        } else {
            newName = (renamer != null) ? renamer.getNewName() : oldName;
        }


        /* Try to get the new class format.  Save exception for later. */
        Format newFormat;
        String newFormatException;

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            addInvalidMutation
                (oldParent, newParent, converter,
                 "Converter is not allowed for a " + FIELD_LABEL);
            return EVOLVE_FAILURE;
        }
        Renamer renamer = mutations.getRenamer
            (oldParent.getClassName(), oldParent.getVersion(), oldName);
        String newName = newField.getName();
        if (renamer != null) {
            if (!renamer.getNewName().equals(newName)) {
                addInvalidMutation
                    (oldParent, newParent, converter,
                     "Converter is not allowed for a " + FIELD_LABEL);
                return EVOLVE_FAILURE;
            }

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        ArrayNameChange_Component_Renamed embed2;


        @Override
        Mutations getMutations() {
            Mutations m = new Mutations();
            m.addRenamer(new Renamer(NAME3, 0, NAME2));
            return m;
        }

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        long f_String2long;


        @Override
        Mutations getMutations() {
            Mutations m = new Mutations();
            m.addRenamer(new Renamer(NAME, 0, "pkeyint", "pkeyInteger"));
            m.addRenamer(new Renamer(NAME, 0, "kboolean", "kBoolean"));
            m.addRenamer(new Renamer(NAME, 0, "kbyte", "kByte"));
            m.addRenamer(new Renamer(NAME, 0, "kshort", "kShort"));
            m.addRenamer(new Renamer(NAME, 0, "kint", "kInteger"));
            m.addRenamer(new Renamer(NAME, 0, "klong", "kLong"));
            m.addRenamer(new Renamer(NAME, 0, "kfloat", "kFloat"));
            m.addRenamer(new Renamer(NAME, 0, "kdouble", "kDouble"));
            m.addRenamer(new Renamer(NAME, 0, "kchar", "kCharacter"));
            m.addRenamer(new Renamer(NAME2, 0, "kcomposite", "kComposite"));


            Conversion conv1 = new MyConversion1();
            Conversion conv2 = new MyConversion2();


            m.addConverter(new Converter(NAME, 0, "f_long2int", conv1));

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                oldMeta = clsMeta.getSecondaryKeys().get(oldName);
                assert oldMeta != null;
            }


            /* Get field mutations. */
            Renamer renamer = mutations.getRenamer
                (getClassName(), getVersion(), oldName);
            Deleter deleter = mutations.getDeleter
                (getClassName(), getVersion(), oldName);
            Converter converter = mutations.getConverter
                (getClassName(), getVersion(), oldName);
            if (deleter != null && (converter != null || renamer != null)) {
                evolver.addInvalidMutation
                    (this, newFormat, deleter,
                     "Field Deleter is not allowed along with a Renamer or " +
                     "Converter for the same field: " + oldName);
                evolveFailure = true;
                continue fieldLoop;
            }


            /*
             * Match old and new field by name, taking into account the Renamer
             * mutation.  If the @SecondaryKey annotation was added or removed,
             * the field will have moved from one of the two field lists to the
             * other.
             */
            String newName = (renamer != null) ?
                renamer.getNewName() : oldName;
            if (!oldName.equals(newName)) {
                if (newToOldFieldMap == null) {
                    newToOldFieldMap = new HashMap<String,String>();
                }
                newToOldFieldMap.put(newName, oldName);

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        int skey = 88;


        @Override
        Mutations getMutations() {
            Mutations m = new Mutations();
            m.addRenamer(new Renamer(NAME, 0, NAME2));
            return m;
        }

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