com.heitaox.sql.executor.core.util

类 DataFrameUntil

java.lang.Object

com.heitaox.sql.executor.core.util.DataFrameUntil

public class DataFrameUntil
extends Object

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	DataFrameUntil.Sorting

构造器概要

构造器

构造器和说明
DataFrameUntil()

方法概要

限定符和类型	方法和说明
static <V> joinery.DataFrame<V>	cartesian(joinery.DataFrame<V> leftDf, joinery.DataFrame<V> rightDf)
static Map<String,Integer>	computeFiledToIndex(joinery.DataFrame df)
static joinery.DataFrame.JoinType	convertDruiJoinTypeToDFJoinType(com.alibaba.druid.sql.ast.statement.SQLJoinTableSource.JoinType joinType)
static Map<List<Object>,List<Object>>	dfToMapList(joinery.DataFrame df)
static void	dropColumnTableAlias(joinery.DataFrame<Object> df)
static Boolean	exectuePredicaeEntity(List<PredicateEntity<Object>> predicateEntities, Map<String,Integer> columnToIndex, List<Object> values, String tableAlias)
static joinery.DataFrame	filter(List<PredicateEntity<Object>> predicateEntities, joinery.DataFrame<Object> df, Map<String,Integer> columnToIndex, String tableAlias)
static <V> joinery.DataFrame<V>	join(joinery.DataFrame<V> left, joinery.DataFrame<V> right, joinery.DataFrame.JoinType how, joinery.DataFrame.KeyFunction<V> leftOn, joinery.DataFrame.KeyFunction<V> rightOn)
static <V> joinery.DataFrame<V>	joinOn(joinery.DataFrame<V> left, joinery.DataFrame<V> right, joinery.DataFrame.JoinType how, List<Integer> leftCols, List<Integer> rightCols)
static void	main(String[] args)
static void	renameNewTableAlias(joinery.DataFrame df, String tableAlias)
static void	setColumnTableAlias(joinery.DataFrame<Object> df, String alilas)
static joinery.DataFrame	sortBy(joinery.DataFrame df, Map<String,Integer> columnToIndex, Object... cols)
static joinery.DataFrame<Object>	union(joinery.DataFrame<Object> leftDf, joinery.DataFrame<Object> rightDf, com.alibaba.druid.sql.ast.statement.SQLUnionOperator operator, Map<String,Integer> columnToIndex)

从类继承的方法 java.lang.Object

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

构造器详细资料

DataFrameUntil

public DataFrameUntil()

方法详细资料

computeFiledToIndex

public static Map<String,Integer> computeFiledToIndex(joinery.DataFrame df)

dropColumnTableAlias

public static void dropColumnTableAlias(joinery.DataFrame<Object> df)

setColumnTableAlias

public static void setColumnTableAlias(joinery.DataFrame<Object> df,
                                       String alilas)

renameNewTableAlias

public static void renameNewTableAlias(joinery.DataFrame df,
                                       String tableAlias)

convertDruiJoinTypeToDFJoinType

public static joinery.DataFrame.JoinType convertDruiJoinTypeToDFJoinType(com.alibaba.druid.sql.ast.statement.SQLJoinTableSource.JoinType joinType)

dfToMapList

public static Map<List<Object>,List<Object>> dfToMapList(joinery.DataFrame df)

sortBy

public static joinery.DataFrame sortBy(joinery.DataFrame df,
                                       Map<String,Integer> columnToIndex,
                                       Object... cols)

union

public static joinery.DataFrame<Object> union(joinery.DataFrame<Object> leftDf,
                                              joinery.DataFrame<Object> rightDf,
                                              com.alibaba.druid.sql.ast.statement.SQLUnionOperator operator,
                                              Map<String,Integer> columnToIndex)

main

public static void main(String[] args)

join

public static <V> joinery.DataFrame<V> join(joinery.DataFrame<V> left,
                                            joinery.DataFrame<V> right,
                                            joinery.DataFrame.JoinType how,
                                            joinery.DataFrame.KeyFunction<V> leftOn,
                                            joinery.DataFrame.KeyFunction<V> rightOn)

joinOn

public static <V> joinery.DataFrame<V> joinOn(joinery.DataFrame<V> left,
                                              joinery.DataFrame<V> right,
                                              joinery.DataFrame.JoinType how,
                                              List<Integer> leftCols,
                                              List<Integer> rightCols)

cartesian

public static <V> joinery.DataFrame<V> cartesian(joinery.DataFrame<V> leftDf,
                                                 joinery.DataFrame<V> rightDf)

filter

public static joinery.DataFrame filter(List<PredicateEntity<Object>> predicateEntities,
                                       joinery.DataFrame<Object> df,
                                       Map<String,Integer> columnToIndex,
                                       String tableAlias)

exectuePredicaeEntity

public static Boolean exectuePredicaeEntity(List<PredicateEntity<Object>> predicateEntities,
                                            Map<String,Integer> columnToIndex,
                                            List<Object> values,
                                            String tableAlias)