org.apache.hive.hplsql.functions

Class BuiltinFunctions

java.lang.Object

org.apache.hive.hplsql.functions.BuiltinFunctions

Direct Known Subclasses:

FunctionDatetime, FunctionMisc, FunctionString

public class BuiltinFunctions
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
protected Console	console
protected Exec	exec
protected HashMap<String,org.apache.hive.hplsql.functions.FuncCommand>	map
protected QueryExecutor	queryExecutor
protected HashMap<String,org.apache.hive.hplsql.functions.FuncSpecCommand>	specMap
protected HashMap<String,org.apache.hive.hplsql.functions.FuncSpecCommand>	specSqlMap
protected boolean	trace

Constructor Summary

Constructors

Constructor and Description
BuiltinFunctions(Exec exec, QueryExecutor queryExecutor)

Method Summary

Modifier and Type	Method and Description
protected void	eval(org.antlr.v4.runtime.ParserRuleContext ctx)
protected void	evalDate(Date date)
protected void	evalInt(int i)
protected void	evalInt(Long i)
protected void	evalNull()
protected void	evalNullClose(QueryResult query)
protected Var	evalPop(org.antlr.v4.runtime.ParserRuleContext ctx)
protected Var	evalPop(org.antlr.v4.runtime.ParserRuleContext ctx, int value)
protected void	evalString(String string)
protected void	evalString(StringBuilder string)
protected void	evalVar(Var var)
boolean	exec(String name, HplsqlParser.Expr_func_paramsContext ctx)
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	exists(String name)
static int	getParamCount(HplsqlParser.Expr_func_paramsContext ctx) Get the number of parameters in function call
protected void	info(org.antlr.v4.runtime.ParserRuleContext ctx, String message)
void	register(BuiltinFunctions f)
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)
protected Integer	visit(org.antlr.v4.runtime.ParserRuleContext ctx)

Methods inherited from class java.lang.Object

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

Field Detail

exec

protected final Exec exec

console

protected final Console console

trace

protected boolean trace

queryExecutor

protected final QueryExecutor queryExecutor

map

protected HashMap<String,org.apache.hive.hplsql.functions.FuncCommand> map

specMap

protected HashMap<String,org.apache.hive.hplsql.functions.FuncSpecCommand> specMap

specSqlMap

protected HashMap<String,org.apache.hive.hplsql.functions.FuncSpecCommand> specSqlMap

Constructor Detail

BuiltinFunctions

public BuiltinFunctions(Exec exec,
                        QueryExecutor queryExecutor)

Method Detail

register

public void register(BuiltinFunctions f)

exec

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

exists

public boolean exists(String name)

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)

evalNull

protected void evalNull()

evalString

protected void evalString(String string)

evalPop

protected Var evalPop(org.antlr.v4.runtime.ParserRuleContext ctx)

evalInt

protected void evalInt(Long i)

evalDate

protected void evalDate(Date date)

evalNullClose

protected void evalNullClose(QueryResult query)

evalVar

protected void evalVar(Var var)

evalString

protected void evalString(StringBuilder string)

evalInt

protected void evalInt(int i)

evalPop

protected Var evalPop(org.antlr.v4.runtime.ParserRuleContext ctx,
                      int value)

getParamCount

public static int getParamCount(HplsqlParser.Expr_func_paramsContext ctx)

Get the number of parameters in function call

eval

protected void eval(org.antlr.v4.runtime.ParserRuleContext ctx)

visit

protected Integer visit(org.antlr.v4.runtime.ParserRuleContext ctx)

info

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