43 lines
1.3 KiB
C#
43 lines
1.3 KiB
C#
using System;
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using System.Linq;
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using System.Collections;
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using System.Collections.Generic;
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using LeanCloud.Storage.Internal.Codec;
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namespace LeanCloud.Storage.Internal.Operation {
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internal class LCRemoveOperation : ILCOperation {
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List<object> valueList;
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internal LCRemoveOperation(IEnumerable<object> values) {
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valueList = new List<object>(values);
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}
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public ILCOperation MergeWithPrevious(ILCOperation previousOp) {
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if (previousOp is LCSetOperation || previousOp is LCDeleteOperation) {
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return previousOp;
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}
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if (previousOp is LCRemoveOperation removeOp) {
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valueList.AddRange(removeOp.valueList);
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}
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throw new ArgumentException("Operation is invalid after previous operation.");
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}
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public object Encode() {
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return new Dictionary<string, object> {
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{ "__op", "Remove" },
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{ "objects", LCEncoder.Encode(valueList) }
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};
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}
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public object Apply(object oldValue, string key) {
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List<object> list = new List<object>(oldValue as IEnumerable<object>);
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list.RemoveAll(item => valueList.Contains(item));
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return list;
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}
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public IEnumerable GetNewObjectList() {
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return null;
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}
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}
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}
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