com.palantir.atlasdb.schema.UpgradeTableFactories.java Source code

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Here is the source code for com.palantir.atlasdb.schema.UpgradeTableFactories.java

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/**
 * Copyright 2015 Palantir Technologies
 *
 * Licensed under the BSD-3 License (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://opensource.org/licenses/BSD-3-Clause
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.palantir.atlasdb.schema;

import com.google.common.base.Function;
import com.google.common.base.Functions;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Multimap;
import com.palantir.atlasdb.schema.generated.UpgTaskMetadataTable.UpgTaskMetadataNamedColumnValue;
import com.palantir.atlasdb.schema.generated.UpgTaskMetadataTable.UpgTaskMetadataRow;
import com.palantir.atlasdb.schema.generated.UpgradeMetadataTable.UpgradeMetadataNamedColumnValue;
import com.palantir.atlasdb.schema.generated.UpgradeMetadataTable.UpgradeMetadataRow;
import com.palantir.atlasdb.schema.generated.UpgradeTableFactory;
import com.palantir.atlasdb.schema.generated.UpgradeTableFactory.SharedTriggers;
import com.palantir.atlasdb.transaction.api.Transaction;

public final class UpgradeTableFactories {
    public static UpgradeTableFactory get() {
        SharedTriggers sharedTriggers = new SharedTriggers() {
            @Override
            public void putUpgTaskMetadata(
                    Multimap<UpgTaskMetadataRow, ? extends UpgTaskMetadataNamedColumnValue<?>> newRows) {
                // WE DON'T INTEND TO MIGRATE UPDATES ANYMORE THAN TO UPGRADE MIGRATIONS
            }

            @Override
            public void putUpgradeMetadata(
                    Multimap<UpgradeMetadataRow, ? extends UpgradeMetadataNamedColumnValue<?>> newRows) {
                // OTHERWISE IT WOULD BE TURTLES ON ELEPHANTS ON TURTLES ON ELEPHANTS
            }
        };
        return UpgradeTableFactory.of(ImmutableList
                .<Function<? super Transaction, SharedTriggers>>of(Functions.constant(sharedTriggers)));
    }
}