Package org.apache.calcite.sql

Class SqlHopTableFunction

java.lang.Object

org.apache.calcite.sql.SqlOperator

org.apache.calcite.sql.SqlFunction

org.apache.calcite.sql.SqlWindowTableFunction

org.apache.calcite.sql.SqlHopTableFunction

All Implemented Interfaces:

SqlTableFunction

public class SqlHopTableFunction
extends SqlWindowTableFunction

SqlHopTableFunction implements an operator for hopping.

It allows four parameters:

1. a table
2. a descriptor to provide a watermarked column name from the input table
3. an interval parameter to specify the length of window shifting
4. an interval parameter to specify the length of window size

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.sql.SqlWindowTableFunction

SqlWindowTableFunction.AbstractOperandMetadata

Field Summary

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

ARG0_TABLE_FUNCTION_WINDOWING, PARAM_DATA, PARAM_KEY, PARAM_OFFSET, PARAM_SIZE, PARAM_SLIDE, PARAM_TIMECOL

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

kind, MDX_PRECEDENCE, NL

Constructor Summary

Constructors

Constructor	Description
SqlHopTableFunction()

Method Summary

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

argumentMustBeScalar, getOperandTypeChecker, getRowTypeInference

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

deriveType, getFunctionType, getNameAsId, getParamNames, getParamTypes, getSqlIdentifier, getSyntax, isQuantifierAllowed, unparse, validateCall, validateQuantifier

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

acceptCall, acceptCall, adjustType, allowsFraming, checkOperandCount, checkOperandTypes, constructArgNameList, constructArgTypeList, constructOperandList, createCall, createCall, createCall, createCall, createCall, createCall, createCall, deriveOperandType, equals, getAllowedSignatures, getAllowedSignatures, getKind, getLeftPrec, getMonotonicity, getMonotonicity, getName, getOperandCountRange, getOperandTypeInference, getReturnTypeInference, getRightPrec, getSignatureTemplate, getSqlCallFactory, getStrongPolicyInference, hashCode, inferReturnType, inferReturnType, isAggregator, isDeterministic, isDynamicFunction, isGroup, isGroupAuxiliary, isName, isSymmetrical, leftPrec, not, preValidateCall, requiresDecimalExpansion, requiresOrder, requiresOver, reverse, rewriteCall, rightPrec, toString, unparseListClause, unparseListClause, validateOperands, validRexOperands

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.calcite.sql.SqlTableFunction

tableCharacteristic

Constructor Details

SqlHopTableFunction

public SqlHopTableFunction()