Package org.apache.cayenne.access.types

Class ByteType

java.lang.Object

org.apache.cayenne.access.types.ByteType

All Implemented Interfaces:

ExtendedType<Byte>

public class ByteType
extends Object
implements ExtendedType<Byte>

Handles java.lang.Byte type mapping. Can be configured to recast java.lang.Byte to java.lang.Integer when binding values to PreparedStatement. This is a workaround for bugs in certain drivers. Drivers that are proven to have issues with byte values are Sybase and Oracle (Mac OS X only).

Since:

1.0.3

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	widenBytes

Fields inherited from interface org.apache.cayenne.access.types.ExtendedType

TRIM_VALUES_THRESHOLD

Constructor Summary

Constructors

Constructor	Description
ByteType(boolean widenBytes)

Method Summary

Modifier and Type	Method	Description
String	getClassName()	Returns a full name of Java class that this ExtendedType supports.
Byte	materializeObject(CallableStatement st, int index, int type)	Reads an object from a stored procedure OUT parameter, converting it to class returned by 'getClassName' method.
Byte	materializeObject(ResultSet rs, int index, int type)	Reads an object from JDBC ResultSet column, converting it to class returned by 'getClassName' method.
void	setJdbcObject(PreparedStatement statement, Byte value, int pos, int type, int precision)	Initializes a single parameter of a PreparedStatement with object value.
String	toString(Byte value)	Converts value of the supported type to a human-readable String representation.

Methods inherited from class java.lang.Object

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

Field Details

widenBytes

protected boolean widenBytes

Constructor Details

ByteType

public ByteType(boolean widenBytes)

Method Details

getClassName

public String getClassName()

Description copied from interface: ExtendedType

Returns a full name of Java class that this ExtendedType supports.

Specified by:

getClassName in interface ExtendedType<Byte>

materializeObject

public Byte materializeObject(ResultSet rs,
 int index,
 int type)
                       throws Exception

Description copied from interface: ExtendedType

Reads an object from JDBC ResultSet column, converting it to class returned by 'getClassName' method.

Specified by:

materializeObject in interface ExtendedType<Byte>

Throws:

Exception - if read error occurred, or an object can't be converted to a target Java class.

materializeObject

public Byte materializeObject(CallableStatement st,
 int index,
 int type)
                       throws Exception

Description copied from interface: ExtendedType

Reads an object from a stored procedure OUT parameter, converting it to class returned by 'getClassName' method.

Specified by:

materializeObject in interface ExtendedType<Byte>

Throws:

Exception - if read error occurred, or an object can't be converted to a target Java class.

setJdbcObject

public void setJdbcObject(PreparedStatement statement,
 Byte value,
 int pos,
 int type,
 int precision)
                   throws Exception

Description copied from interface: ExtendedType

Initializes a single parameter of a PreparedStatement with object value.

Specified by:

setJdbcObject in interface ExtendedType<Byte>

Throws:

Exception

toString

public String toString(Byte value)

Description copied from interface: ExtendedType

Converts value of the supported type to a human-readable String representation.

Specified by:

toString in interface ExtendedType<Byte>

Parameters:

value - a value to convert to String.