org.apache.beam.sdk.extensions.sql.impl.interpreter.operator.date

Class BeamSqlTimestampMinusIntervalExpression

java.lang.Object

org.apache.beam.sdk.extensions.sql.impl.interpreter.operator.BeamSqlExpression

org.apache.beam.sdk.extensions.sql.impl.interpreter.operator.date.BeamSqlTimestampMinusIntervalExpression

All Implemented Interfaces:

java.io.Serializable

public class BeamSqlTimestampMinusIntervalExpression
extends BeamSqlExpression

'-' operator for 'timestamp - interval' expressions.

See BeamSqlDatetimeMinusExpression for other kinds of datetime types subtraction.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.beam.sdk.extensions.sql.impl.interpreter.operator.BeamSqlExpression

operands, outputType

Constructor Summary

Constructors

Constructor and Description
BeamSqlTimestampMinusIntervalExpression(java.util.List<BeamSqlExpression> operands, org.apache.calcite.sql.type.SqlTypeName outputType)

Method Summary

Modifier and Type	Method and Description
boolean	accept() assertion to make sure the input and output are supported in this expression.
BeamSqlPrimitive	evaluate(Row row, BoundedWindow window, BeamSqlExpressionEnvironment env) Apply input record Row with BoundedWindow to this expression, the output value is wrapped with BeamSqlPrimitive.

Methods inherited from class org.apache.beam.sdk.extensions.sql.impl.interpreter.operator.BeamSqlExpression

getOperands, getOutputType, numberOfOperands, op, opType, opValueEvaluated

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BeamSqlTimestampMinusIntervalExpression

public BeamSqlTimestampMinusIntervalExpression(java.util.List<BeamSqlExpression> operands,
                                               org.apache.calcite.sql.type.SqlTypeName outputType)

Method Detail

accept

public boolean accept()

Description copied from class: BeamSqlExpression

assertion to make sure the input and output are supported in this expression.

Specified by:

accept in class BeamSqlExpression

evaluate

public BeamSqlPrimitive evaluate(Row row,
                                 BoundedWindow window,
                                 BeamSqlExpressionEnvironment env)

Description copied from class: BeamSqlExpression

Apply input record Row with BoundedWindow to this expression, the output value is wrapped with BeamSqlPrimitive.

Specified by:

evaluate in class BeamSqlExpression