Package com.flowable.platform.common.persistence

Class ClobCharacterStreamTypeHandler

java.lang.Object

org.apache.ibatis.type.TypeReference<T>

org.apache.ibatis.type.BaseTypeHandler<String>

com.flowable.platform.common.persistence.ClobCharacterStreamTypeHandler

All Implemented Interfaces:

org.apache.ibatis.type.TypeHandler<String>

@Alias("ClobCharacterStreamTypeHandler")
public class ClobCharacterStreamTypeHandler
extends org.apache.ibatis.type.BaseTypeHandler<String>

A TypeHandler that uses ResultSet.getCharacterStream(String) and ResultSet.getCharacterStream(int) to convert a Clob into a string. The Postgresql JDBC driver has a bug when reading from clob, and MyBatis uses Clob to read the contents.

Author:

Filip Hrisafov

See Also:

• mybatis/mybatis-3#1325 for the MyBatis issue
• pgjdbc/pgjdbc#458 for the Postgresql JDBC driver issue

Field Summary

Fields

Modifier and Type	Field	Description
protected final boolean	useNclob

Fields inherited from class org.apache.ibatis.type.BaseTypeHandler

configuration

Constructor Summary

Constructors

Constructor	Description
ClobCharacterStreamTypeHandler(boolean useNclob)

Method Summary

Modifier and Type	Method	Description
String	getNullableResult(CallableStatement cs, int columnIndex)
String	getNullableResult(ResultSet rs, int columnIndex)
String	getNullableResult(ResultSet rs, String columnName)
protected static String	read(Reader reader)
void	setNonNullParameter(PreparedStatement ps, int i, String parameter, org.apache.ibatis.type.JdbcType jdbcType)

Methods inherited from class org.apache.ibatis.type.BaseTypeHandler

getResult, getResult, getResult, setConfiguration, setParameter

Methods inherited from class org.apache.ibatis.type.TypeReference

getRawType, toString

Methods inherited from class java.lang.Object

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

Field Details

useNclob

protected final boolean useNclob

Constructor Details

ClobCharacterStreamTypeHandler

public ClobCharacterStreamTypeHandler(boolean useNclob)

Method Details

setNonNullParameter

public void setNonNullParameter(PreparedStatement ps,
 int i,
 String parameter,
 org.apache.ibatis.type.JdbcType jdbcType)
                         throws SQLException

Specified by:

setNonNullParameter in class org.apache.ibatis.type.BaseTypeHandler<String>

Throws:

SQLException

getNullableResult

public String getNullableResult(ResultSet rs,
 String columnName)
                         throws SQLException

Specified by:

getNullableResult in class org.apache.ibatis.type.BaseTypeHandler<String>

Throws:

SQLException

getNullableResult

public String getNullableResult(ResultSet rs,
 int columnIndex)
                         throws SQLException

Specified by:

getNullableResult in class org.apache.ibatis.type.BaseTypeHandler<String>

Throws:

SQLException

getNullableResult

public String getNullableResult(CallableStatement cs,
 int columnIndex)
                         throws SQLException

Specified by:

getNullableResult in class org.apache.ibatis.type.BaseTypeHandler<String>

Throws:

SQLException

read

protected static String read(Reader reader)
                      throws IOException

Throws:

IOException