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

Class BeamSqlStringUnaryExpression

java.lang.Object

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

org.apache.beam.sdk.extensions.sql.impl.interpreter.operator.string.BeamSqlStringUnaryExpression

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

BeamSqlCharLengthExpression, BeamSqlInitCapExpression, BeamSqlLowerExpression, BeamSqlUpperExpression

public abstract class BeamSqlStringUnaryExpression
extends BeamSqlExpression

Base class for all string unary operators.

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
BeamSqlStringUnaryExpression(java.util.List<BeamSqlExpression> operands, 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.

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

evaluate, 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

BeamSqlStringUnaryExpression

public BeamSqlStringUnaryExpression(java.util.List<BeamSqlExpression> operands,
                                    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