public abstract class BeamSqlMathUnaryExpression extends BeamSqlExpression
operands, outputType
Constructor and Description |
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BeamSqlMathUnaryExpression(java.util.List<BeamSqlExpression> operands,
org.apache.calcite.sql.type.SqlTypeName outputType) |
Modifier and Type | Method and Description |
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boolean |
accept()
assertion to make sure the input and output are supported in this expression.
|
abstract BeamSqlPrimitive |
calculate(BeamSqlPrimitive op)
For the operands of other type
SqlTypeName.NUMERIC_TYPES . |
BeamSqlPrimitive<? extends java.lang.Number> |
evaluate(Row inputRow,
BoundedWindow window,
BeamSqlExpressionEnvironment env)
Apply input record
Row with BoundedWindow to this expression, the output value
is wrapped with BeamSqlPrimitive . |
getOperands, getOutputType, numberOfOperands, op, opType, opValueEvaluated
public BeamSqlMathUnaryExpression(java.util.List<BeamSqlExpression> operands, org.apache.calcite.sql.type.SqlTypeName outputType)
public boolean accept()
BeamSqlExpression
accept
in class BeamSqlExpression
public BeamSqlPrimitive<? extends java.lang.Number> evaluate(Row inputRow, BoundedWindow window, BeamSqlExpressionEnvironment env)
BeamSqlExpression
Row
with BoundedWindow
to this expression, the output value
is wrapped with BeamSqlPrimitive
.evaluate
in class BeamSqlExpression
public abstract BeamSqlPrimitive calculate(BeamSqlPrimitive op)
SqlTypeName.NUMERIC_TYPES
.