void SetChangeMetaCompareParam( const DataStoreChangeMetaCompareParam & compareParam );
Name | Description | |
---|---|---|
in | compareParam | Expected value for comparison. |
Sets the expected value for comparison to be changed with compare and swap.
When changing with compare and swap, before changing, compares the set expected value with the data value. At this time, if the expected value and data value are equal, the metadata is changed; if they are different, the metadata is not changed. This parameter specification is not required. By default, the setting is to not use compare and swap.
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