org.apache.hive.hplsql.functions

Class Function

java.lang.Object

org.apache.hive.hplsql.functions.Function

Direct Known Subclasses:

FunctionDatetime, FunctionMisc, FunctionOra, FunctionString

public class Function
extends Object

HPL/SQL functions

Constructor Summary

Constructors

Constructor and Description
Function(Exec e)

Method Summary

Modifier and Type	Method and Description
void	addUserFunction(HplsqlParser.Create_function_stmtContext ctx) Add a user-defined function
void	addUserProcedure(HplsqlParser.Create_procedure_stmtContext ctx) Add a user-defined procedure
void	exec(String name, HplsqlParser.Expr_func_paramsContext ctx) Execute a function
void	execAggWindowSql(HplsqlParser.Expr_agg_window_funcContext ctx) Aggregate or window function in a SQL query
void	execCurrentDate(HplsqlParser.Expr_spec_funcContext ctx) Get the current date
void	execMaxPartDate(HplsqlParser.Expr_spec_funcContext ctx) Execute MAX_PART_DATE function
void	execMaxPartInt(HplsqlParser.Expr_spec_funcContext ctx) Execute MAX_PART_INT function
void	execMaxPartString(HplsqlParser.Expr_spec_funcContext ctx) Execute MAX_PART_STRING function
void	execMinMaxPart(HplsqlParser.Expr_spec_funcContext ctx, Var.Type type, boolean max) Execute MIN or MAX partition function
void	execMinPartDate(HplsqlParser.Expr_spec_funcContext ctx) Execute MIN_PART_DATE function
void	execMinPartInt(HplsqlParser.Expr_spec_funcContext ctx) Execute MIN_PART_INT function
void	execMinPartString(HplsqlParser.Expr_spec_funcContext ctx) Execute MIN_PART_STRING function
void	execPartLoc(HplsqlParser.Expr_spec_funcContext ctx) Execute PART_LOC function
boolean	execProc(String name) Execute a stored procedure as the entry point of the script (defined by -main option)
boolean	execProc(String name, HplsqlParser.Expr_func_paramsContext ctx, org.antlr.v4.runtime.ParserRuleContext callCtx) Execute a stored procedure using CALL or EXEC statement passing parameters
void	execSql(String name, HplsqlParser.Expr_func_paramsContext ctx) User-defined function in a SQL query
boolean	execUser(String name, HplsqlParser.Expr_func_paramsContext ctx) Execute a user-defined function
boolean	execUserSql(HplsqlParser.Expr_func_paramsContext ctx, String name) Execute a HPL/SQL user-defined function in a query
ArrayList<Var>	getActualCallParameters(HplsqlParser.Expr_func_paramsContext actual) Evaluate actual call parameters
int	getParamCount(HplsqlParser.Expr_func_paramsContext ctx) Get the number of parameters in function call
void	info(org.antlr.v4.runtime.ParserRuleContext ctx, String message)
boolean	isProc(String name) Check if the stored procedure with the specified name is defined
void	register(Function f) Register functions
void	setCallParameters(HplsqlParser.Expr_func_paramsContext actual, ArrayList<Var> actualValues, HplsqlParser.Create_routine_paramsContext formal, HashMap<String,Var> out) Set parameters for user-defined function call
void	specExec(HplsqlParser.Expr_spec_funcContext ctx) Execute a special function
void	specExecSql(HplsqlParser.Expr_spec_funcContext ctx) Execute a special function in executable SQL statement
void	trace(org.antlr.v4.runtime.ParserRuleContext ctx, String message) Trace information
void	trace(String message)

Methods inherited from class java.lang.Object

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

Constructor Detail

Function

public Function(Exec e)

Method Detail

register

public void register(Function f)

Register functions

exec

public void exec(String name,
                 HplsqlParser.Expr_func_paramsContext ctx)

Execute a function

execSql

public void execSql(String name,
                    HplsqlParser.Expr_func_paramsContext ctx)

User-defined function in a SQL query

execAggWindowSql

public void execAggWindowSql(HplsqlParser.Expr_agg_window_funcContext ctx)

Aggregate or window function in a SQL query

execUser

public boolean execUser(String name,
                        HplsqlParser.Expr_func_paramsContext ctx)

Execute a user-defined function

execUserSql

public boolean execUserSql(HplsqlParser.Expr_func_paramsContext ctx,
                           String name)

Execute a HPL/SQL user-defined function in a query

execProc

public boolean execProc(String name)

Execute a stored procedure as the entry point of the script (defined by -main option)

isProc

public boolean isProc(String name)

Check if the stored procedure with the specified name is defined

execProc

public boolean execProc(String name,
                        HplsqlParser.Expr_func_paramsContext ctx,
                        org.antlr.v4.runtime.ParserRuleContext callCtx)

Execute a stored procedure using CALL or EXEC statement passing parameters

setCallParameters

public void setCallParameters(HplsqlParser.Expr_func_paramsContext actual,
                              ArrayList<Var> actualValues,
                              HplsqlParser.Create_routine_paramsContext formal,
                              HashMap<String,Var> out)

Set parameters for user-defined function call

getActualCallParameters

public ArrayList<Var> getActualCallParameters(HplsqlParser.Expr_func_paramsContext actual)

Evaluate actual call parameters

addUserFunction

public void addUserFunction(HplsqlParser.Create_function_stmtContext ctx)

Add a user-defined function

addUserProcedure

public void addUserProcedure(HplsqlParser.Create_procedure_stmtContext ctx)

Add a user-defined procedure

getParamCount

public int getParamCount(HplsqlParser.Expr_func_paramsContext ctx)

Get the number of parameters in function call

specExec

public void specExec(HplsqlParser.Expr_spec_funcContext ctx)

Execute a special function

specExecSql

public void specExecSql(HplsqlParser.Expr_spec_funcContext ctx)

Execute a special function in executable SQL statement

execCurrentDate

public void execCurrentDate(HplsqlParser.Expr_spec_funcContext ctx)

Get the current date

execMaxPartString

public void execMaxPartString(HplsqlParser.Expr_spec_funcContext ctx)

Execute MAX_PART_STRING function

execMinPartString

public void execMinPartString(HplsqlParser.Expr_spec_funcContext ctx)

Execute MIN_PART_STRING function

execMaxPartInt

public void execMaxPartInt(HplsqlParser.Expr_spec_funcContext ctx)

Execute MAX_PART_INT function

execMinPartInt

public void execMinPartInt(HplsqlParser.Expr_spec_funcContext ctx)

Execute MIN_PART_INT function

execMaxPartDate

public void execMaxPartDate(HplsqlParser.Expr_spec_funcContext ctx)

Execute MAX_PART_DATE function

execMinPartDate

public void execMinPartDate(HplsqlParser.Expr_spec_funcContext ctx)

Execute MIN_PART_DATE function

execMinMaxPart

public void execMinMaxPart(HplsqlParser.Expr_spec_funcContext ctx,
                           Var.Type type,
                           boolean max)

Execute MIN or MAX partition function

execPartLoc

public void execPartLoc(HplsqlParser.Expr_spec_funcContext ctx)

Execute PART_LOC function

trace

public void trace(org.antlr.v4.runtime.ParserRuleContext ctx,
                  String message)

Trace information

trace

public void trace(String message)

info

public void info(org.antlr.v4.runtime.ParserRuleContext ctx,
                 String message)