spring-data-redis KeyScanOptions 源码
spring-data-redis KeyScanOptions 代码
文件路径:/src/main/java/org/springframework/data/redis/core/KeyScanOptions.java
/*
* Copyright 2014-2022 the original author or 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
*
* https://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 org.springframework.data.redis.core;
import java.util.StringJoiner;
import org.springframework.data.redis.connection.DataType;
import org.springframework.lang.Nullable;
import org.springframework.util.StringUtils;
/**
* Options to be used for with {@literal SCAN} commands.
*
* @author Mark Paluch
* @author Christoph Strobl
* @since 2.6
*/
public class KeyScanOptions extends ScanOptions {
/**
* Constant to apply default {@link KeyScanOptions} without setting a limit or matching a pattern.
*/
public static KeyScanOptions NONE = new KeyScanOptions(null, null, null, null);
private final @Nullable String type;
KeyScanOptions(@Nullable Long count, @Nullable String pattern, @Nullable byte[] bytePattern,
@Nullable String type) {
super(count, pattern, bytePattern);
this.type = type;
}
/**
* Static factory method that returns a new {@link ScanOptionsBuilder}.
*
* @param type
* @return
*/
public static ScanOptionsBuilder scanOptions(DataType type) {
return new ScanOptionsBuilder().type(type);
}
@Nullable
public String getType() {
return type;
}
@Override
public String toOptionString() {
if (this.equals(KeyScanOptions.NONE)) {
return "";
}
StringJoiner joiner = new StringJoiner(", ").add(super.toOptionString());
if (StringUtils.hasText(type)) {
joiner.add("'type' '" + type + "'");
}
return joiner.toString();
}
}
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