org.firebirdsql.jdbc
Class FBEscapedFunctionHelper

java.lang.Object
  org.firebirdsql.jdbc.FBEscapedFunctionHelper

public class FBEscapedFunctionHelper
extends Object

Helper class for escaped functions.

Author:

Roman Rokytskyy

Constructor Summary

FBEscapedFunctionHelper()

Method Summary

static String	_char(String[] params) Produce a function call for the char UDF function.
static String	abs(String[] params) Produce a function call for the abs UDF function.
static String	acos(String[] params) Produce a function call for the acos UDF function.
static String	ascii(String[] params) Produce a function call for the ascii UDF function.
static String	asin(String[] params) Produce a function call for the asin UDF function.
static String	atan(String[] params) Produce a function call for the atan UDF function.
static String	atan2(String[] params) Produce a function call for the atan2 UDF function.
static String	ceiling(String[] params) Produce a function call for the ceiling UDF function.
static String	convertTemplate(String functionCall, int mode) Convert escaped function call using function template.
static String	cos(String[] params) Produce a function call for the cos UDF function.
static String	cot(String[] params) Produce a function call for the cot UDF function.
static String	floor(String[] params) Produce a function call for the floor UDF function.
static String	lcase(String[] params) Produce a function call for the lcase UDF function.
static String	length(String[] params) Produce a function call for the length UDF function.
static String	log(String[] params) Produce a function call for the log UDF function.
static String	log10(String[] params) Produce a function call for the log10 UDF function.
static String	ltrim(String[] params) Produce a function call for the ltrim UDF function.
static String	mod(String[] params) Produce a function call for the mod UDF function.
static List	parseArguments(String functionCall) Extract function arguments from the function call.
static String	parseFunction(String functionCall) Extract function name from the function call.
static String	pi(String[] params) Produce a function call for the pi UDF function.
static String	rand(String[] params) Produce a function call for the rand UDF function.
static String	rtrim(String[] params) Produce a function call for the rtrim UDF function.
static String	sign(String[] params) Produce a function call for the sign UDF function.
static String	sin(String[] params) Produce a function call for the sin UDF function.
static String	sqrt(String[] params) Produce a function call for the sqrt UDF function.
static String	tan(String[] params) Produce a function call for the tan UDF function.

Methods inherited from class java.lang.Object

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

Constructor Detail

FBEscapedFunctionHelper

public FBEscapedFunctionHelper()

Method Detail

parseFunction

public static String parseFunction(String functionCall)
                            throws FBSQLParseException

Extract function name from the function call.

Parameters:

functionCall - escaped function call.

Returns:

name of the function.

Throws:

FBSQLParseException - if parse error occurs.

parseArguments

public static List parseArguments(String functionCall)
                           throws FBSQLParseException

Extract function arguments from the function call. This method parses escaped function call string and extracts function parameters from it.

Parameters:

functionCall - escaped function call.

Returns:

list of parameters of the function.

Throws:

FBSQLParseException - if parse error occurs.

convertTemplate

public static String convertTemplate(String functionCall,
                                     int mode)
                              throws FBSQLParseException

Convert escaped function call using function template.

Parameters:

functionCall - escaped function call.

Returns:

server-side representation of the function call or null if no template found.

Throws:

FBSQLParseException - if escaped function call has incorrect syntax.

abs

public static String abs(String[] params)
                  throws FBSQLParseException

Produce a function call for the abs UDF function. The syntax of the abs function is {fn abs(number)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

acos

public static String acos(String[] params)
                   throws FBSQLParseException

Produce a function call for the acos UDF function. The syntax of the acos function is {fn acos(float)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

asin

public static String asin(String[] params)
                   throws FBSQLParseException

Produce a function call for the asin UDF function. The syntax of the asin function is {fn asin(float)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

atan

public static String atan(String[] params)
                   throws FBSQLParseException

Produce a function call for the atan UDF function. The syntax of the atan function is {fn atan(float)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

atan2

public static String atan2(String[] params)
                    throws FBSQLParseException

Produce a function call for the atan2 UDF function. The syntax of the atan2 function is {fn atan2(float1, float2)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

ceiling

public static String ceiling(String[] params)
                      throws FBSQLParseException

Produce a function call for the ceiling UDF function. The syntax of the ceiling function is {fn ceiling(number)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

cos

public static String cos(String[] params)
                  throws FBSQLParseException

Produce a function call for the cos UDF function. The syntax of the cos function is {fn cos(float)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

cot

public static String cot(String[] params)
                  throws FBSQLParseException

Produce a function call for the cot UDF function. The syntax of the cot function is {fn cot(float)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

floor

public static String floor(String[] params)
                    throws FBSQLParseException

Produce a function call for the floor UDF function. The syntax of the floor function is {fn floor(number)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

log

public static String log(String[] params)
                  throws FBSQLParseException

Produce a function call for the log UDF function. The syntax of the log function is {fn log(number)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

log10

public static String log10(String[] params)
                    throws FBSQLParseException

Produce a function call for the log10 UDF function. The syntax of the log10 function is {fn log10(number)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

mod

public static String mod(String[] params)
                  throws FBSQLParseException

Produce a function call for the mod UDF function. The syntax of the mod function is {fn mod(integer1, integer2)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

pi

public static String pi(String[] params)
                 throws FBSQLParseException

Produce a function call for the pi UDF function. The syntax of the pi function is {fn pi()}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

rand

public static String rand(String[] params)
                   throws FBSQLParseException

Produce a function call for the rand UDF function. The syntax for the rand function is {fn rand()}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

sign

public static String sign(String[] params)
                   throws FBSQLParseException

Produce a function call for the sign UDF function. The syntax for the sign function is {fn sign(number)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

sin

public static String sin(String[] params)
                  throws FBSQLParseException

Produce a function call for the sin UDF function. The syntax for the sin function is {fn sin(float)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

sqrt

public static String sqrt(String[] params)
                   throws FBSQLParseException

Produce a function call for the sqrt UDF function. The syntax for the sqrt function is {fn sqrt(number)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

tan

public static String tan(String[] params)
                  throws FBSQLParseException

Produce a function call for the tan UDF function. The syntax for the tan function is {fn tan(float)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

ascii

public static String ascii(String[] params)
                    throws FBSQLParseException

Produce a function call for the ascii UDF function. The syntax of the ascii function is {fn ascii(string)}

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

_char

public static String _char(String[] params)
                    throws FBSQLParseException

Produce a function call for the char UDF function. The syntax of the char function is {fn char(integer)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

lcase

public static String lcase(String[] params)
                    throws FBSQLParseException

Produce a function call for the lcase UDF function. The syntax of the lcase function is {fn lcase(string)}

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

length

public static String length(String[] params)
                     throws FBSQLParseException

Produce a function call for the length UDF function. The syntax of the length function is {fn length(string)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

ltrim

public static String ltrim(String[] params)
                    throws FBSQLParseException

Produce a function call for the ltrim UDF function. The syntax of the ltrim function is {fn ltrim(string)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters

rtrim

public static String rtrim(String[] params)
                    throws FBSQLParseException

Produce a function call for the rtrim UDF function. The syntax of the rtrim function is {fn rtrim(string)}.

Parameters:

params - The parameters to be used in the call

Throws:

FBSQLParseException - if there is an error with the parameters