public class SumAggregation extends Object implements Aggregation
举例:如果字段“age”恰好有5行(少一点我们方便举例),分别为:1、2、3、4、5,则进行 SumAggregation 的结果为15。
限定符和类型 | 类和说明 |
---|---|
static class |
SumAggregation.Builder |
构造器和说明 |
---|
SumAggregation() |
限定符和类型 | 方法和说明 |
---|---|
String |
getAggName() |
AggregationType |
getAggType() |
String |
getFieldName() |
ColumnValue |
getMissing() |
protected static SumAggregation.Builder |
newBuilder() |
com.google.protobuf.ByteString |
serialize() |
SumAggregation |
setAggName(String aggName) |
SumAggregation |
setFieldName(String fieldName) |
SumAggregation |
setMissing(ColumnValue missing) |
protected static SumAggregation.Builder newBuilder()
public String getAggName()
getAggName
在接口中 Aggregation
public AggregationType getAggType()
getAggType
在接口中 Aggregation
public com.google.protobuf.ByteString serialize()
serialize
在接口中 Aggregation
public String getFieldName()
public ColumnValue getMissing()
public SumAggregation setAggName(String aggName)
public SumAggregation setFieldName(String fieldName)
public SumAggregation setMissing(ColumnValue missing)
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