com.sun.jdo.api.persistence.enhancer

Class FilterEnhancer

java.lang.Object

com.sun.jdo.api.persistence.enhancer.util.Assertion

com.sun.jdo.api.persistence.enhancer.util.Support

com.sun.jdo.api.persistence.enhancer.FilterEnhancer

All Implemented Interfaces:

ByteCodeEnhancer

public class FilterEnhancer
extends Support
implements ByteCodeEnhancer

Implements a JDO enhancer as a byte-code filtering tool.

Field Summary

Fields

Modifier and Type	Field and Description
static String	DO_SIMPLE_TIMING
static String	VERBOSE_LEVEL
static String	VERBOSE_LEVEL_DEBUG
static String	VERBOSE_LEVEL_QUIET
static String	VERBOSE_LEVEL_VERBOSE
static String	VERBOSE_LEVEL_WARN

Fields inherited from class com.sun.jdo.api.persistence.enhancer.util.Support

timer

Constructor Summary

Constructors

Constructor and Description
FilterEnhancer(JDOMetaData metaData, Properties settings, PrintWriter out, PrintWriter err) Creates an instance of a JDO enhancer.
FilterEnhancer(com.sun.jdo.api.persistence.model.Model metaData, Properties settings, PrintWriter out, PrintWriter err) Creates an instance of a JDO enhancer.
FilterEnhancer(Properties metaData, Properties settings, PrintWriter out, PrintWriter err) Creates an instance of a JDO enhancer.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	enhanceClassFile(InputStream in, OutputStream out) Enhances a given class according to the JDO meta-data.
boolean	enhanceClassFile(InputStream inByteCode, OutputStreamWrapper outByteCode) Enhances a given class according to the JDO meta-data.
protected void	init(JDOMetaData metaData, Properties settings, PrintWriter out, PrintWriter err) Initializes an instance of a JDO enhancer.

Methods inherited from class com.sun.jdo.api.persistence.enhancer.util.Support

getI18N, getI18N, getI18N, getI18N, getI18N, getI18N

Methods inherited from class com.sun.jdo.api.persistence.enhancer.util.Assertion

affirm, affirm, affirm, affirm

Methods inherited from class java.lang.Object

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

Field Detail

DO_SIMPLE_TIMING

public static final String DO_SIMPLE_TIMING

See Also:

Constant Field Values

VERBOSE_LEVEL

public static final String VERBOSE_LEVEL

See Also:

Constant Field Values

VERBOSE_LEVEL_QUIET

public static final String VERBOSE_LEVEL_QUIET

See Also:

Constant Field Values

VERBOSE_LEVEL_WARN

public static final String VERBOSE_LEVEL_WARN

See Also:

Constant Field Values

VERBOSE_LEVEL_VERBOSE

public static final String VERBOSE_LEVEL_VERBOSE

See Also:

Constant Field Values

VERBOSE_LEVEL_DEBUG

public static final String VERBOSE_LEVEL_DEBUG

See Also:

Constant Field Values

Constructor Detail

FilterEnhancer

public FilterEnhancer(JDOMetaData metaData,
              Properties settings,
              PrintWriter out,
              PrintWriter err)
               throws EnhancerUserException,
                      EnhancerFatalError

Creates an instance of a JDO enhancer.

Parameters:

metaData - the JDO meta-data object

settings - enhancement properties

out - standard ouput stream for the enhancer

Throws:

EnhancerUserException

EnhancerFatalError

FilterEnhancer

public FilterEnhancer(Properties metaData,
              Properties settings,
              PrintWriter out,
              PrintWriter err)
               throws EnhancerUserException,
                      EnhancerFatalError

Creates an instance of a JDO enhancer.

Parameters:

metaData - the JDO meta-data properties

settings - enhancement properties

out - standard ouput stream for the enhancer

Throws:

EnhancerUserException

EnhancerFatalError

FilterEnhancer

public FilterEnhancer(com.sun.jdo.api.persistence.model.Model metaData,
              Properties settings,
              PrintWriter out,
              PrintWriter err)
               throws EnhancerUserException,
                      EnhancerFatalError

Creates an instance of a JDO enhancer.

Parameters:

metaData - the JDO model

settings - enhancement properties

out - standard ouput stream for the enhancer

Throws:

EnhancerUserException

EnhancerFatalError

Method Detail

init

protected void init(JDOMetaData metaData,
        Properties settings,
        PrintWriter out,
        PrintWriter err)
             throws EnhancerUserException,
                    EnhancerFatalError

Initializes an instance of a JDO enhancer.

Parameters:

metaData - the JDO meta-data object

settings - enhancement properties

out - standard ouput stream for the enhancer

Throws:

EnhancerUserException

EnhancerFatalError

enhanceClassFile

public boolean enhanceClassFile(InputStream inByteCode,
                       OutputStreamWrapper outByteCode)
                         throws EnhancerUserException,
                                EnhancerFatalError

Enhances a given class according to the JDO meta-data.

Specified by:

enhanceClassFile in interface ByteCodeEnhancer

Parameters:

inByteCode - The byte-code of the class to be enhanced.

outByteCode - The byte-code of the enhanced class.

Returns:

true if the class has been enhanced, false otherwise.

Throws:

EnhancerUserException

EnhancerFatalError

enhanceClassFile

public boolean enhanceClassFile(InputStream in,
                       OutputStream out)
                         throws EnhancerUserException,
                                EnhancerFatalError

Description copied from interface: ByteCodeEnhancer

Enhances a given class according to the JDO meta-data. If the input class has been enhanced or not - the output stream is always written, either with the enhanced class or with the non-enhanced class.

Specified by:

enhanceClassFile in interface ByteCodeEnhancer

Parameters:

in - The byte-code of the class to be enhanced.

out - The byte-code of the enhanced class.

Returns:

true if the class has been enhanced, false otherwise.

Throws:

EnhancerUserException

EnhancerFatalError