kodo.jdbc.meta
Class ReverseMappingTool

java.lang.Object
  |
  +--kodo.jdbc.meta.ReverseMappingTool

public class ReverseMappingTool

extends Object

Reverse-maps a schema into class mappings and the assiciated java code. Generates an XML schema definition file, an XML mapping file, java code files for persistent classes and their application IDs, and metadata files for these classes. The schema definition file and XML mapping file can then be imported into the schema factory and mapping factory of your choosing.

Field Summary

static String	LEVEL_CLASS
static String	LEVEL_PACKAGE

Constructor Summary

ReverseMappingTool(JDBCConfiguration conf)
Constructor.

Method Summary

void	addClassIndicator(ClassIndicator cls, ClassMapping owner) Add a mapping.
boolean	addClassMapping(ClassMapping mapping) Add a mapping.
boolean	addFieldMapping(FieldMapping field, ClassMapping owner) Add a mapping.
void	addVersionIndicator(VersionIndicator version, ClassMapping owner) Add a mapping.
Class	generateClass(String name, Class parent) Generate a new class with the given name.
void	generateMappings() Generate mappings and class code for the current schema group.
boolean	getBlobAsObject() Whether to reverse-map blob columns as containing serialized Java objects, rather than the default of using a byte[] field.
ClassMapping	getClassMapping(Table table) Return the class mapping for the given table, or null if none.
String	getClassName(Table table) Return a Java identifier-formatted name for the given table name, using the default package.
serp.util.CodeFormat	getCodeFormat() The code formatter for the generated Java code.
JDBCConfiguration	getConfiguration() Return the configuration provided on construction.
ReverseCustomizer	getCustomizer() Return the customizer in use, or null if none.
File	getDirectory() The file to output the generated code to, or null for the current directory.
String	getFieldName(String name, ClassMetaData fieldOwner) Return a default Java identifier-formatted name for the given column/table name.
Class	getFieldType(Column col, boolean forceObject) Return the default field type for the given column.
Log	getLog() Return the log to write to.
ClassMapping[]	getMappings() Return the generated mappings.
boolean	getNullableAsObject() Return whether even nullable columns will be mapped to wrappers rather than primitives.
boolean	getOneToManyRelations() Whether to generate inverse 1-many relations for all 1-1 relations.
String	getPackageName() Return the default package for the generated classes, or null if unset.
boolean	getPrimaryKeyOnJoin() Return true if join tables are allowed to have primary keys, false if all primary key tables will be mapped as persistent classes.
String	getRelationName(Class fieldType, boolean coll, ForeignKey fk, boolean inverse, ClassMetaData fieldOwner) Return a default java identifier-formatted field relation name for the given class name.
MappingRepository	getRepository() Return the mapping repository used to hold generated mappings.
SchemaGroup	getSchemaGroup() Return the schema group to reverse map.
boolean	getUseDatastoreIdentity() Whether to use datastore identity when possible.
boolean	getUseForeignKeyName() Return whether the foreign key name will be used to generate relation names.
boolean	getUseSchemaName() Return true if the schema name will be included in the generated class name for each table.
static void	main(String[] args) Usage: java kodo.jdbc.meta.ReverseMappingTool [option]* <.schema file or resource>*
ClassMetaData	newClassMetaData(Class cls, Class pcParent, int idType) Return a new class metadata for the given name and parent.
FieldMetaData	newFieldMetaData(String name, Class type, ClassMetaData owner) Return a new field metadata for the given name, type, and owner.
static boolean	run(JDBCConfiguration conf, String[] args, serp.util.Options opts) Run the tool.
static void	run(JDBCConfiguration conf, String[] args, String packageName, File codeDir, boolean useSchemaName, boolean useFKName, boolean nullAsObj, boolean blobAsObj, boolean pkOnJoin, boolean datastore, boolean oneMany, String metaLevel, ReverseCustomizer customizer, serp.util.CodeFormat format, ClassLoader loader) Run the tool.
void	setBlobAsObject(boolean blobAsObj) Whether to reverse-map blob columns as containing serialized Java objects, rather than the default of using a byte[] field.
void	setCodeFormat(serp.util.CodeFormat format) Set the code formatter for the generated Java code.
void	setCustomizer(ReverseCustomizer customizer) Set the customizer.
void	setDirectory(File dir) The file to output the generated code to, or null for the current directory.
void	setNullableAsObject(boolean nullAsObj) Set whether even nullable columns will be mapped to wrappers rather than primitives.
void	setOneToManyRelations(boolean oneMany) Whether to generate inverse 1-many relations for all 1-1 relations.
void	setPackageName(String packageName) Set the default package for the generated classes; use null to indicate no package.
void	setPrimaryKeyOnJoin(boolean pkOnJoin) Set to true if join tables are allowed to have primary keys, false if all primary key tables will be mapped as persistent classes.
void	setRepository(MappingRepository repos) Set the repository to use.
void	setSchemaGroup(SchemaGroup schema) Set the schema to reverse map.
void	setUseDatastoreIdentity(boolean datastore) Whether to use datastore identity when possible.
void	setUseForeignKeyName(boolean useFK) Set whether the foreign key name will be used to generate relation names.
void	setUseSchemaName(boolean useSchema) Set whether the schema name will be included in the generated class name for each table.
void	writeApplicationIdentityCode() Uses the ApplicationIdTool to write identity classes to the proper packages.
void	writeCode() Uses CodeGenerators to write the Java code for the generated mappings to the proper packages.
void	writeMappings(boolean perClass) Uses the XMLMappingInfoSerializer to write the generated metadata to the proper packages.
void	writeMetaData(boolean perClass) Uses the JDOMetaDataSerializer to write the generated metadata to the proper packages.

Methods inherited from class java.lang.Object

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

Field Detail

LEVEL_PACKAGE

public static final String LEVEL_PACKAGE

LEVEL_CLASS

public static final String LEVEL_CLASS

Constructor Detail

ReverseMappingTool

public ReverseMappingTool(JDBCConfiguration conf)

Constructor. Supply configuration.

Method Detail

getConfiguration

public JDBCConfiguration getConfiguration()

Return the configuration provided on construction.

getLog

public Log getLog()

Return the log to write to.

getPackageName

public String getPackageName()

Return the default package for the generated classes, or null if unset.

setPackageName

public void setPackageName(String packageName)

Set the default package for the generated classes; use null to indicate no package.

getDirectory

public File getDirectory()

The file to output the generated code to, or null for the current directory. If the directory matches the package, it will be used. Otherwise, the package structure will be created under this directory.

setDirectory

public void setDirectory(File dir)

The file to output the generated code to, or null for the current directory. If the directory matches the package, it will be used. Otherwise, the package structure will be created under this directory.

getUseSchemaName

public boolean getUseSchemaName()

Return true if the schema name will be included in the generated class name for each table. Defaults to false.

setUseSchemaName

public void setUseSchemaName(boolean useSchema)

Set whether the schema name will be included in the generated class name for each table. Defaults to false.

getUseForeignKeyName

public boolean getUseForeignKeyName()

Return whether the foreign key name will be used to generate relation names. Defaults to false.

setUseForeignKeyName

public void setUseForeignKeyName(boolean useFK)

Set whether the foreign key name will be used to generate relation names. Defaults to false.

getNullableAsObject

public boolean getNullableAsObject()

Return whether even nullable columns will be mapped to wrappers rather than primitives. Defaults to false.

setNullableAsObject

public void setNullableAsObject(boolean nullAsObj)

Set whether even nullable columns will be mapped to wrappers rather than primitives. Defaults to false.

getBlobAsObject

public boolean getBlobAsObject()

Whether to reverse-map blob columns as containing serialized Java objects, rather than the default of using a byte[] field.

setBlobAsObject

public void setBlobAsObject(boolean blobAsObj)

Whether to reverse-map blob columns as containing serialized Java objects, rather than the default of using a byte[] field.

getPrimaryKeyOnJoin

public boolean getPrimaryKeyOnJoin()

Return true if join tables are allowed to have primary keys, false if all primary key tables will be mapped as persistent classes. Defaults to false.

setPrimaryKeyOnJoin

public void setPrimaryKeyOnJoin(boolean pkOnJoin)

Set to true if join tables are allowed to have primary keys, false if all primary key tables will be mapped as persistent classes. Defaults to false.

getUseDatastoreIdentity

public boolean getUseDatastoreIdentity()

Whether to use datastore identity when possible. Defaults to false.

setUseDatastoreIdentity

public void setUseDatastoreIdentity(boolean datastore)

Whether to use datastore identity when possible. Defaults to false.

getOneToManyRelations

public boolean getOneToManyRelations()

Whether to generate inverse 1-many relations for all 1-1 relations. Defaults to true.

setOneToManyRelations

public void setOneToManyRelations(boolean oneMany)

Whether to generate inverse 1-many relations for all 1-1 relations. Defaults to true.

getCodeFormat

public serp.util.CodeFormat getCodeFormat()

The code formatter for the generated Java code.

setCodeFormat

public void setCodeFormat(serp.util.CodeFormat format)

Set the code formatter for the generated Java code.

getCustomizer

public ReverseCustomizer getCustomizer()

Return the customizer in use, or null if none.

setCustomizer

public void setCustomizer(ReverseCustomizer customizer)

Set the customizer. The configuration on the customizer, if any, should already be set.

getRepository

public MappingRepository getRepository()

Return the mapping repository used to hold generated mappings. You can also use the repository to seed the schema group to generate classes from.

setRepository

public void setRepository(MappingRepository repos)

Set the repository to use.

getSchemaGroup

public SchemaGroup getSchemaGroup()

Return the schema group to reverse map. If none has been set, the schema will be generated from the database.

setSchemaGroup

public void setSchemaGroup(SchemaGroup schema)

Set the schema to reverse map.

getMappings

public ClassMapping[] getMappings()

Return the generated mappings.

generateMappings

public void generateMappings()

Generate mappings and class code for the current schema group.

writeCode

public void writeCode()
               throws IOException

Uses CodeGenerators to write the Java code for the generated mappings to the proper packages.

writeMetaData

public void writeMetaData(boolean perClass)
                   throws IOException

Uses the JDOMetaDataSerializer to write the generated metadata to the proper packages.

writeMappings

public void writeMappings(boolean perClass)
                   throws IOException

Uses the XMLMappingInfoSerializer to write the generated metadata to the proper packages.

writeApplicationIdentityCode

public void writeApplicationIdentityCode()
                                  throws IOException

Uses the ApplicationIdTool to write identity classes to the proper packages.

getClassMapping

public ClassMapping getClassMapping(Table table)

Return the class mapping for the given table, or null if none.

addClassMapping

public boolean addClassMapping(ClassMapping mapping)

Add a mapping.

addFieldMapping

public boolean addFieldMapping(FieldMapping field,
                               ClassMapping owner)

Add a mapping.

addVersionIndicator

public void addVersionIndicator(VersionIndicator version,
                                ClassMapping owner)

Add a mapping.

addClassIndicator

public void addClassIndicator(ClassIndicator cls,
                              ClassMapping owner)

Add a mapping.

newClassMetaData

public ClassMetaData newClassMetaData(Class cls,
                                      Class pcParent,
                                      int idType)

Return a new class metadata for the given name and parent.

Parameters:

name - the full name of the class to generate

idType - ClassMetaData.ID_APPLICATION or ClassMetaData.ID_DATASTORE

pcParent - nearest persistent parent class, or null

newFieldMetaData

public FieldMetaData newFieldMetaData(String name,
                                      Class type,
                                      ClassMetaData owner)

Return a new field metadata for the given name, type, and owner.

getClassName

public String getClassName(Table table)

Return a Java identifier-formatted name for the given table name, using the default package.

getFieldName

public String getFieldName(String name,
                           ClassMetaData fieldOwner)

Return a default Java identifier-formatted name for the given column/table name.

getRelationName

public String getRelationName(Class fieldType,
                              boolean coll,
                              ForeignKey fk,
                              boolean inverse,
                              ClassMetaData fieldOwner)

Return a default java identifier-formatted field relation name for the given class name.

getFieldType

public Class getFieldType(Column col,
                          boolean forceObject)

Return the default field type for the given column.

generateClass

public Class generateClass(String name,
                           Class parent)

Generate a new class with the given name. If a non-null parent class is given, it will be set as the superclass.

main

public static void main(String[] args)
                 throws IOException,
                        SQLException

Usage: java kodo.jdbc.meta.ReverseMappingTool [option]* <.schema file or resource>*

Where the following options are recognized.

• -properties/-p <properties file or resource>: The path or resource name of a Kodo properties file containing information such as the license key data as outlined in JDOConfiguration. Optional.
• -<property name> <property value>: All bean properties of the Kodo JDBCConfiguration can be set by using their names and supplying a value. For example: -licenseKey adslfja83r3lkadf
• -schemas/-s <schemas and tables>: Comma-separated list of schemas and tables to reverse-map.
• -package/-pkg <package name>: The name of the package for all generated classes. Defaults to no package.
• -directory/-d <output directory>: The directory where all generated code should be placed. Defaults to the current directory.
• -useSchemaName/-sn <true/t | false/f>: Set this flag to true to include the schema name as part of the generated class name for each table.
• -useForeignKeyName/-fkn <true/t | false/f>: Set this flag to true to use the foreign key name to generate fields representing relations between classes.
• -nullableAsObject/-no <true/t | false/f>: Set to true to make all nullable columns map to object types; columns that would normally map to a primitive will map to the appropriate wrapper type instead.
• -blobAsObject/-bo <true/t | false/f>: Set to true to make all binary columns map to Object rather than byte[].
• -primaryKeyOnJoin/-pkj <true/t | false/f>: Set to true to allow primary keys on join tables.
• -useDatastoreIdentity/-ds <true/t | false/f>: Set to true to use datastore identity where possible.
• -oneToManyRelations/-omr <true/t | false/f>: Set to false to prevent the creation of inverse 1-many relations for each encountered 1-1 relation.
• -metadata/-md <class | package>: Specify the level the JDO metadata should be generated at. Defaults to generating a single package-level metadata file.
• -customizerClass/-cc <class name>: The full class name of a ReverseCustomizer implementation to use to customize the reverse mapping process. Optional.
• -customizerProperties/-cp <properties file or resource> : The path or resource name of a properties file that will be passed to the reverse customizer on initialization. Optional.
• -customizer/-c.<property name> < property value> : Arguments like this will be used to configure the bean properties of the ReverseCustomizer.
• -codeFormat/-cf.<property name> < property value> : Arguments like this will be used to configure the bean properties of the internal CodeFormat.

Each schema given as an argument will be reverse-mapped into JDO classes and associated metadata. If no arguments are given, the database schemas defined by the system configuration will be reverse-mapped.

run

public static boolean run(JDBCConfiguration conf,
                          String[] args,
                          serp.util.Options opts)
                   throws IOException,
                          SQLException

Run the tool. Returns false if invalid options were given.

See Also:

main(java.lang.String[])

run

public static void run(JDBCConfiguration conf,
                       String[] args,
                       String packageName,
                       File codeDir,
                       boolean useSchemaName,
                       boolean useFKName,
                       boolean nullAsObj,
                       boolean blobAsObj,
                       boolean pkOnJoin,
                       boolean datastore,
                       boolean oneMany,
                       String metaLevel,
                       ReverseCustomizer customizer,
                       serp.util.CodeFormat format,
                       ClassLoader loader)
                throws IOException,
                       SQLException

Run the tool.