Package org.springframework.batch.item.database

Class JdbcParameterUtils

java.lang.Object

org.springframework.batch.item.database.JdbcParameterUtils

public class JdbcParameterUtils
extends Object

Helper methods for SQL statement parameter parsing.

Only intended for internal use.

Since:

2.0

Author:

Thomas Risberg, Juergen Hoeller, Marten Deinum

Constructor Summary

Constructors

Constructor	Description
JdbcParameterUtils()

Method Summary

Modifier and Type	Method	Description
static int	countParameterPlaceholders(String sql, List<String> namedParameterHolder)	Count the occurrences of the character placeholder in an SQL string sql.

Methods inherited from class java.lang.Object

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

Constructor Details

JdbcParameterUtils

public JdbcParameterUtils()

Method Details

countParameterPlaceholders

public static int countParameterPlaceholders(String sql,
 List<String> namedParameterHolder)

Count the occurrences of the character placeholder in an SQL string sql. The character placeholder is not counted if it appears within a literal, that is, surrounded by single or double quotes. This method will count traditional placeholders in the form of a question mark ('?') as well as named parameters indicated with a leading ':' or '&'.

The code for this method is taken from an early version of the NamedParameterUtils class. That method was later removed after some refactoring, but the code is useful here for the Spring Batch project. The code has been altered to better suite the batch processing requirements.

Parameters:

sql - String to search in. Returns 0 if the given String is null.

namedParameterHolder - holder for the named parameters

Returns:

the number of named parameter placeholders