Package org.hibernate.dialect

Class DB2GetObjectExtractor<T>

java.lang.Object

org.hibernate.type.descriptor.jdbc.BasicExtractor<T>

org.hibernate.type.descriptor.jdbc.internal.GetObjectExtractor<T>

org.hibernate.dialect.DB2GetObjectExtractor<T>

All Implemented Interfaces:

Serializable, ValueExtractor<T>

public class DB2GetObjectExtractor<T>
extends GetObjectExtractor<T>

Variant of the GetObjectExtractor that catches a NullPointerException, because the DB2 JDBC driver runs into that exception when trying to access a null value with the getObject(int, Class) and getObject(String, Class) methods.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
DB2GetObjectExtractor(JavaType<T> javaType, JavaTimeJdbcType jdbcType, Class<?> baseClass)

Method Summary

Modifier and Type	Method	Description
protected T	doExtract(CallableStatement statement, int paramIndex, WrapperOptions options)	Perform the extraction.
protected T	doExtract(CallableStatement statement, String name, WrapperOptions options)	Perform the extraction.
protected T	doExtract(ResultSet rs, int paramIndex, WrapperOptions options)	Perform the extraction.

Methods inherited from class org.hibernate.type.descriptor.jdbc.BasicExtractor

extract, extract, extract, getJavaType, getJdbcType

Methods inherited from class java.lang.Object

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

Constructor Details

DB2GetObjectExtractor

public DB2GetObjectExtractor(JavaType<T> javaType,
 JavaTimeJdbcType jdbcType,
 Class<?> baseClass)

Method Details

doExtract

protected T doExtract(ResultSet rs,
 int paramIndex,
 WrapperOptions options)
               throws SQLException

Description copied from class: BasicExtractor

Perform the extraction.

Called from BasicExtractor.extract(java.sql.ResultSet, int, org.hibernate.type.descriptor.WrapperOptions). Null checking of the value (as well as consulting ResultSet.wasNull()) is done there.

Overrides:

doExtract in class GetObjectExtractor<T>

Returns:

The extracted value.

Throws:

SQLException - Indicates a problem access the result set

doExtract

protected T doExtract(CallableStatement statement,
 int paramIndex,
 WrapperOptions options)
               throws SQLException

Description copied from class: BasicExtractor

Perform the extraction.

Called from BasicExtractor.extract(java.sql.ResultSet, int, org.hibernate.type.descriptor.WrapperOptions). Null checking of the value (as well as consulting ResultSet.wasNull()) is done there.

Overrides:

doExtract in class GetObjectExtractor<T>

Returns:

The extracted value.

Throws:

SQLException - Indicates a problem accessing the parameter value

doExtract

protected T doExtract(CallableStatement statement,
 String name,
 WrapperOptions options)
               throws SQLException

Description copied from class: BasicExtractor

Perform the extraction.

Called from BasicExtractor.extract(java.sql.ResultSet, int, org.hibernate.type.descriptor.WrapperOptions). Null checking of the value (as well as consulting ResultSet.wasNull()) is done there.

Overrides:

doExtract in class GetObjectExtractor<T>

Parameters:

statement - The callable statement containing the output parameter

name - The output parameter name

options - The binding options

Returns:

The extracted value.

Throws:

SQLException - Indicates a problem accessing the parameter value