org.sqlproc.engine.jdbc.type

Class JdbcBlobType

java.lang.Object

org.sqlproc.engine.type.SqlDefaultType

org.sqlproc.engine.type.SqlBlobType

org.sqlproc.engine.jdbc.type.JdbcBlobType

All Implemented Interfaces:

JdbcSqlType, SqlMetaType, SqlTaggedMetaType

public class JdbcBlobType
extends SqlBlobType
implements JdbcSqlType

The SQL META Types for BLOB.

Author:

Vladimir Hudec

Field Summary

Fields inherited from class org.sqlproc.engine.type.SqlDefaultType

logger

Constructor Summary

Constructors

Constructor and Description
JdbcBlobType()

Method Summary

Methods

Modifier and Type	Method and Description
Object	get(CallableStatement cs, int index) Retrieves the value of the designated parameter from CallableStatement object as a Java type value.
Object	get(ResultSet rs, String columnLabel) Retrieves the value of the designated column in the current row of this ResultSet object as a Java type value.
Class<?>[]	getClassTypes() Returns the list of Java class types related to this META type.
Integer	getDatabaseSqlType() Returns the type provided by the stack on top of which the SQL Processor works.
Object	getProviderSqlType() Returns the type provided by the stack on top of which the SQL Processor works.
void	set(PreparedStatement st, int index, Object value) Sets the designated parameter to the given Java value.

Methods inherited from class org.sqlproc.engine.type.SqlBlobType

getClassTypesForDefault, getMetaTypes

Methods inherited from class org.sqlproc.engine.type.SqlDefaultType

addScalar, error, setParameter, setResult

Methods inherited from class java.lang.Object

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

Constructor Detail

JdbcBlobType

public JdbcBlobType()

Method Detail

getClassTypes

public Class<?>[] getClassTypes()

Returns the list of Java class types related to this META type.

Specified by:

getClassTypes in interface SqlTaggedMetaType

Returns:

the list of Java class types related to this META type

getProviderSqlType

public Object getProviderSqlType()

Returns the type provided by the stack on top of which the SQL Processor works.

Specified by:

getProviderSqlType in interface SqlMetaType

Returns:

the provided type

getDatabaseSqlType

public Integer getDatabaseSqlType()

Returns the type provided by the stack on top of which the SQL Processor works. It has to support null input/output values.

Specified by:

getDatabaseSqlType in interface JdbcSqlType

Returns:

the provided type

get

public Object get(ResultSet rs,
         String columnLabel)
           throws SQLException

Retrieves the value of the designated column in the current row of this ResultSet object as a Java type value.

Specified by:

get in interface JdbcSqlType

Parameters:

rs - a ResultSet instance

columnLabel - the label for the column specified with the SQL AS clause. If the SQL AS clause was not specified, then the label is the name of the column

Returns:

the column value; if the value is SQL NULL, the value returned is null

Throws:

SQLException - if the columnLabel is not valid; if a database access error occurs or this method is called on a closed result set

set

public void set(PreparedStatement st,
       int index,
       Object value)
         throws SQLException

Sets the designated parameter to the given Java value. The JDBC driver converts this to the appropriate SQL type value.

Specified by:

set in interface JdbcSqlType

Parameters:

st - a PreparedStatement instance

index - the first parameter is 1, the second is 2, ...

value - the parameter value

Throws:

SQLException - if parameterIndex does not correspond to a parameter marker in the SQL statement; if a database access error occurs or this method is called on a closed PreparedStatement

get

public Object get(CallableStatement cs,
         int index)
           throws SQLException

Retrieves the value of the designated parameter from CallableStatement object as a Java type value.

Specified by:

get in interface JdbcSqlType

Parameters:

cs - a CallableStatement instance

index - the first parameter is 1, the second is 2, ...

Returns:

the parameter value; if the value is SQL NULL, the value depends on the Java type

Throws:

SQLException - if the parameterIndex is not valid; if a database access error occurs or this method is called on a closed CallableStatement