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java.lang.Objectorg.apache.hadoop.hbase.coprocessor.ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>
org.apache.hadoop.hbase.client.coprocessor.BigDecimalColumnInterpreter
@InterfaceAudience.Public @InterfaceStability.Evolving public class BigDecimalColumnInterpreter
ColumnInterpreter for doing Aggregation's with BigDecimal columns. This class is required at the RegionServer also.
| Constructor Summary | |
|---|---|
BigDecimalColumnInterpreter()
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| Method Summary | |
|---|---|
BigDecimal |
add(BigDecimal bd1,
BigDecimal bd2)
|
BigDecimal |
castToCellType(BigDecimal bd)
The response message comes as type S. |
BigDecimal |
castToReturnType(BigDecimal bd)
provides casting opportunity between the data types. |
int |
compare(BigDecimal bd1,
BigDecimal bd2)
This takes care if either of arguments are null. |
double |
divideForAvg(BigDecimal bd1,
Long l2)
used for computing average of |
BigDecimal |
getCellValueFromProto(HBaseProtos.BigDecimalMsg q)
This method gets the PB message corresponding to the cell type |
BigDecimal |
getMaxValue()
returns the maximum value for this type T |
BigDecimal |
getMinValue()
|
BigDecimal |
getPromotedValueFromProto(HBaseProtos.BigDecimalMsg r)
This method gets the promoted type from the proto message |
HBaseProtos.BigDecimalMsg |
getProtoForCellType(BigDecimal t)
This method gets the PB message corresponding to the cell type |
HBaseProtos.BigDecimalMsg |
getProtoForPromotedType(BigDecimal s)
This method gets the PB message corresponding to the promoted type |
HBaseProtos.EmptyMsg |
getRequestData()
This method should return any additional data that is needed on the server side to construct the ColumnInterpreter. |
BigDecimal |
getValue(byte[] colFamily,
byte[] colQualifier,
KeyValue kv)
|
BigDecimal |
increment(BigDecimal bd)
|
void |
initialize(HBaseProtos.EmptyMsg msg)
This method should initialize any field(s) of the ColumnInterpreter with a parsing of the passed message bytes (used on the server side). |
BigDecimal |
multiply(BigDecimal bd1,
BigDecimal bd2)
|
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public BigDecimalColumnInterpreter()
| Method Detail |
|---|
public BigDecimal getValue(byte[] colFamily,
byte[] colQualifier,
KeyValue kv)
throws IOException
getValue in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>IOException
public BigDecimal add(BigDecimal bd1,
BigDecimal bd2)
add in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>
public int compare(BigDecimal bd1,
BigDecimal bd2)
ColumnInterpreter
compare in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>public BigDecimal getMaxValue()
ColumnInterpreter
getMaxValue in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>public BigDecimal increment(BigDecimal bd)
increment in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>
public BigDecimal multiply(BigDecimal bd1,
BigDecimal bd2)
multiply in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>public BigDecimal getMinValue()
getMinValue in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>
public double divideForAvg(BigDecimal bd1,
Long l2)
ColumnInterpreter
divideForAvg in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>public BigDecimal castToReturnType(BigDecimal bd)
ColumnInterpreter
castToReturnType in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>public BigDecimal castToCellType(BigDecimal bd)
ColumnInterpreterColumnInterpreter.castToReturnType(Object)
castToCellType in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>public HBaseProtos.EmptyMsg getRequestData()
ColumnInterpreterColumnInterpreter.initialize(P)
method. If there is no ColumnInterpreter specific data (for e.g.,
LongColumnInterpreter) then null should be returned.
getRequestData in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>public void initialize(HBaseProtos.EmptyMsg msg)
ColumnInterpreter
initialize in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>public HBaseProtos.BigDecimalMsg getProtoForCellType(BigDecimal t)
ColumnInterpreter
getProtoForCellType in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>public HBaseProtos.BigDecimalMsg getProtoForPromotedType(BigDecimal s)
ColumnInterpreter
getProtoForPromotedType in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>public BigDecimal getPromotedValueFromProto(HBaseProtos.BigDecimalMsg r)
ColumnInterpreter
getPromotedValueFromProto in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>public BigDecimal getCellValueFromProto(HBaseProtos.BigDecimalMsg q)
ColumnInterpreter
getCellValueFromProto in class ColumnInterpreter<BigDecimal,BigDecimal,HBaseProtos.EmptyMsg,HBaseProtos.BigDecimalMsg,HBaseProtos.BigDecimalMsg>
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