org.apache.flink.sql.parser.ddl

Class SqlWatermark

java.lang.Object

org.apache.calcite.sql.SqlNode

org.apache.calcite.sql.SqlCall

org.apache.flink.sql.parser.ddl.SqlWatermark

All Implemented Interfaces:

Cloneable

public class SqlWatermark
extends org.apache.calcite.sql.SqlCall

Watermark statement in CREATE TABLE DDL, e.g. WATERMARK FOR ts AS ts - INTERVAL '5' SECOND.

Field Summary

Fields inherited from class org.apache.calcite.sql.SqlNode

EMPTY_ARRAY, pos

Constructor Summary

Constructors

Constructor and Description
SqlWatermark(org.apache.calcite.sql.parser.SqlParserPos pos, org.apache.calcite.sql.SqlIdentifier eventTimeColumnName, org.apache.calcite.sql.SqlNode watermarkStrategy)

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.sql.SqlIdentifier	getEventTimeColumnName()
List<org.apache.calcite.sql.SqlNode>	getOperandList()
org.apache.calcite.sql.SqlOperator	getOperator()
org.apache.calcite.sql.SqlNode	getWatermarkStrategy()
void	unparse(org.apache.calcite.sql.SqlWriter writer, int leftPrec, int rightPrec)

Methods inherited from class org.apache.calcite.sql.SqlCall

accept, clone, equalsDeep, findValidOptions, getCallSignature, getFunctionQuantifier, getKind, getMonotonicity, isCountStar, isExpanded, operand, operandCount, setOperand, validate

Methods inherited from class org.apache.calcite.sql.SqlNode

clone, clone, cloneArray, equalDeep, equalDeep, equalsDeep, getParserPosition, isA, toList, toList, toSqlString, toSqlString, toSqlString, toString, unparseWithParentheses, validateExpr

Methods inherited from class java.lang.Object

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

Constructor Detail

SqlWatermark

public SqlWatermark(org.apache.calcite.sql.parser.SqlParserPos pos,
                    org.apache.calcite.sql.SqlIdentifier eventTimeColumnName,
                    org.apache.calcite.sql.SqlNode watermarkStrategy)

Method Detail

getOperator

public org.apache.calcite.sql.SqlOperator getOperator()

Specified by:

getOperator in class org.apache.calcite.sql.SqlCall

getOperandList

public List<org.apache.calcite.sql.SqlNode> getOperandList()

Specified by:

getOperandList in class org.apache.calcite.sql.SqlCall

unparse

public void unparse(org.apache.calcite.sql.SqlWriter writer,
                    int leftPrec,
                    int rightPrec)

Overrides:

unparse in class org.apache.calcite.sql.SqlCall

getEventTimeColumnName

public org.apache.calcite.sql.SqlIdentifier getEventTimeColumnName()

getWatermarkStrategy

public org.apache.calcite.sql.SqlNode getWatermarkStrategy()