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# Conflicts: # dynamodb-documents/src/main/java/com/formkiq/stacks/dynamodb/DocumentServiceImpl.java
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aws-dynamodb/src/main/java/com/formkiq/aws/dynamodb/DynamodbRecordKeyPredicate.java
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| /** | ||
| * MIT License | ||
| * | ||
| * Copyright (c) 2018 - 2020 FormKiQ | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in all | ||
| * copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| * SOFTWARE. | ||
| */ | ||
| package com.formkiq.aws.dynamodb; | ||
|
|
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| import java.util.Collection; | ||
| import java.util.Set; | ||
| import java.util.function.Predicate; | ||
| import java.util.stream.Collectors; | ||
|
|
||
| /** | ||
| * {@link Predicate} for finding matching {@link DynamodbRecord} keys. | ||
| */ | ||
| public class DynamodbRecordKeyPredicate implements Predicate<DynamodbRecord<?>> { | ||
|
|
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| /** {@link Set} Keys. */ | ||
| private final Set<String> keys; | ||
|
|
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| /** | ||
| * constructor. | ||
| * | ||
| * @param records {@link Collection} {@link DynamodbRecord} | ||
| */ | ||
| public DynamodbRecordKeyPredicate(final Collection<? extends DynamodbRecord<?>> records) { | ||
| this.keys = records.stream().map(DynamodbRecordKeyPredicate::key).collect(Collectors.toSet()); | ||
| } | ||
|
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| @Override | ||
| public boolean test(final DynamodbRecord r) { | ||
| return keys.contains(key(r)); | ||
| } | ||
|
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| /** | ||
| * Generate Key. | ||
| * | ||
| * @param r {@link DynamodbRecord} | ||
| * @return String | ||
| */ | ||
| public static String key(final DynamodbRecord<?> r) { | ||
| return r.pk(null) + "#" + r.sk(); | ||
| } | ||
| } |
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