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[core] Delete useless methods in Catalog (apache#4468)
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82 changes: 82 additions & 0 deletions
82
paimon-core/src/main/java/org/apache/paimon/catalog/Database.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * 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. | ||
| */ | ||
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| package org.apache.paimon.catalog; | ||
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| import org.apache.paimon.annotation.Public; | ||
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| import javax.annotation.Nullable; | ||
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| import java.util.HashMap; | ||
| import java.util.Map; | ||
| import java.util.Optional; | ||
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| /** | ||
| * Interface of a database in a catalog. | ||
| * | ||
| * @since 1.0 | ||
| */ | ||
| @Public | ||
| public interface Database { | ||
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| /** A name to identify this database. */ | ||
| String name(); | ||
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| /** Options of this database. */ | ||
| Map<String, String> options(); | ||
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| /** Optional comment of this database. */ | ||
| Optional<String> comment(); | ||
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| static Database of(String name, Map<String, String> options, @Nullable String comment) { | ||
| return new DatabaseImpl(name, options, comment); | ||
| } | ||
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| static Database of(String name) { | ||
| return new DatabaseImpl(name, new HashMap<>(), null); | ||
| } | ||
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| /** Implementation of {@link Database}. */ | ||
| class DatabaseImpl implements Database { | ||
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| private final String name; | ||
| private final Map<String, String> options; | ||
| @Nullable private final String comment; | ||
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| public DatabaseImpl(String name, Map<String, String> options, @Nullable String comment) { | ||
| this.name = name; | ||
| this.options = options; | ||
| this.comment = comment; | ||
| } | ||
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| @Override | ||
| public String name() { | ||
| return name; | ||
| } | ||
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| @Override | ||
| public Map<String, String> options() { | ||
| return options; | ||
| } | ||
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| @Override | ||
| public Optional<String> comment() { | ||
| return Optional.ofNullable(comment); | ||
| } | ||
| } | ||
| } |
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