com.agimatec.sql

Class SQLStringGenerator

java.lang.Object

com.agimatec.sql.SQLClauseParserAbstract

com.agimatec.sql.SQLStringGenerator

public class SQLStringGenerator
extends SQLClauseParserAbstract

Generates an SQL String (with parameters) from the given SQL-statement (containing parameter markers) and a given parameter array. Also handles string constants correctly.

Caution: Uses Oracle Date String format!

$Author: stumm $

Field Summary

Fields

Modifier and Type	Field and Description
protected int	paramIdx
protected List	params

Fields inherited from class com.agimatec.sql.SQLClauseParserAbstract

INPUT_BRACKET_CLOSE, INPUT_BRACKET_OPEN, INPUT_PARAM_INDICATOR, INPUT_TEXT_INDICATOR, inputStream, position, RESULT_PARAM_INDICATOR

Constructor Summary

Constructors

Constructor and Description
SQLStringGenerator(String input, Writer output, List aParams)

Method Summary

Modifier and Type	Method and Description
protected void	addParseParamBracket(String aString)
protected void	addParseParamExpression(String aString) Add the parameter identified by aString to the result.
void	appendSQLParamString(StringBuilder buf, Object value)
static String	asProcedureCall(String sql) convert the sql to be a valid PL/SQL Stored Procudure call.
protected void	foundParamMarker() Parameter marker found at current position.
protected void	handleParam(Object aValue)
protected String	toSQLParamString(Object value)

Methods inherited from class com.agimatec.sql.SQLClauseParserAbstract

addParseExpression, foundParamExpression, foundParamOpenBracket, getResultWriter, handleExpression, initForParse, isParamExpressionTerminator, parse, signalMissingToken, signalUnexpectedToken, skip

Methods inherited from class java.lang.Object

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

Field Detail

params

protected final List params

paramIdx

protected int paramIdx

Constructor Detail

SQLStringGenerator

public SQLStringGenerator(String input,
                          Writer output,
                          List aParams)

Parameters:

input - e.g. SELECT * FROM TABLE WHERE OID = ? AND THEDATE = ?

output - a writer for the result

aParams - e.g. a List containing a String for OID and a Date for THEDATE. output contains the following after the parse() methods has been executed: SELECT * FROM TABLE WHERE OID = 'oidvalue' AND THEDATE = to_date('datevalue', 'YYYY-MM-DD')

Method Detail

addParseParamExpression

protected void addParseParamExpression(String aString)

Add the parameter identified by aString to the result.

Specified by:

addParseParamExpression in class SQLClauseParserAbstract

addParseParamBracket

protected void addParseParamBracket(String aString)

Specified by:

addParseParamBracket in class SQLClauseParserAbstract

foundParamMarker

protected void foundParamMarker()
                         throws IOException

Parameter marker found at current position. Parse the parameter expression.

Overrides:

foundParamMarker in class SQLClauseParserAbstract

Throws:

IOException

handleParam

protected void handleParam(Object aValue)
                    throws IOException

Throws:

IOException

toSQLParamString

protected String toSQLParamString(Object value)

appendSQLParamString

public void appendSQLParamString(StringBuilder buf,
                                 Object value)

asProcedureCall

public static String asProcedureCall(String sql)

convert the sql to be a valid PL/SQL Stored Procudure call. Oracle expects different SQL than the JDBC standard. JDBC Standard: "call " Oracle: "begin ;end;"

Parameters:

sql -

Returns:

the sql decorated to be a valid procedure call.