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RecordCursorEndContinuation.java
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RecordCursorEndContinuation.java
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/*
* RecordCursorEndContinuation.java
*
* This source file is part of the FoundationDB open source project
*
* Copyright 2015-2018 Apple Inc. and the FoundationDB project authors
*
* Licensed 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.
*/
package com.apple.foundationdb.record;
import com.apple.foundationdb.annotation.API;
import com.google.protobuf.ByteString;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
/**
* A concrete continuation representing that a {@link RecordCursor} has returned all of the records that it ever will.
* This is the structured continuation equivalent of a {@code null} byte array continuation.
*/
@API(API.Status.INTERNAL)
public class RecordCursorEndContinuation implements RecordCursorContinuation {
public static final RecordCursorContinuation END = new RecordCursorEndContinuation();
private RecordCursorEndContinuation() {
}
@Nonnull
@Override
public ByteString toByteString() {
return ByteString.EMPTY;
}
@Nullable
@Override
public byte[] toBytes() {
return null;
}
@Override
public boolean isEnd() {
return true;
}
}