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//ExtendedJDOMetaData - Java Source
//***************** package ***********************************************
package com.sun.jdo.api.persistence.enhancer.meta;
//***************** import ************************************************
//#########################################################################
/**
* Provides extended JDO meta information for byte-code enhancement.
*/
//#########################################################################
public interface ExtendedJDOMetaData
extends JDOMetaData
{
/**
* The JDO field flags.
*/
int CHECK_READ = 0x01;
int MEDIATE_READ = 0x02;
int CHECK_WRITE = 0x04;
int MEDIATE_WRITE = 0x08;
int SERIALIZABLE = 0x10;
/**********************************************************************
* Gets all known classnames.
*
* @return All known classnames.
*********************************************************************/
public String [] getKnownClasses ()
throws JDOMetaDataUserException,
JDOMetaDataFatalError;
/**********************************************************************
* Gets all known fieldnames of a class.
*
* @param classname The classname.
*
* @return All known fieldnames.
*********************************************************************/
public String [] getKnownFields (String classname)
throws JDOMetaDataUserException,
JDOMetaDataFatalError;
/**********************************************************************
* Gets the type of a field.
*
* @param classname The classname.
* @param fieldname The fieldname.
*
* @return The type of the field.
*********************************************************************/
public String getFieldType (String classname,
String fieldname)
throws JDOMetaDataUserException,
JDOMetaDataFatalError;
/**********************************************************************
* Gets the modifiers of a class. The return value is a constant of the
* java.lang.reflect.Modifier class.
*
* @param classname The classname.
*
* @return The modifiers.
*
* @see java.lang.reflect.Modifier
*********************************************************************/
public int getClassModifiers (String classname)
throws JDOMetaDataUserException,
JDOMetaDataFatalError;
/**********************************************************************
* Gets the modifiers of a field. The return value is a constant of the
* java.lang.reflect.Modifier class.
*
* @param classname The classname.
* @param fieldname The fieldname.
*
* @return The modifiers.
*
* @see java.lang.reflect.Modifier
*********************************************************************/
public int getFieldModifiers (String classname,
String fieldname)
throws JDOMetaDataUserException,
JDOMetaDataFatalError;
/**********************************************************************
* Returns the name of the key class of a class.
*
* The following holds:
* (String s = getKeyClass(classPath)) != null
* ==> !isPersistenceCapableClass(s)
* && isPersistenceCapableClass(classPath)
* @param classPath the non-null JVM-qualified name of the class
* @return the name of the key class or null if there is none
* @see #isPersistenceCapableClass(String)
*********************************************************************/
public String getKeyClass(String classPath)
throws JDOMetaDataUserException, JDOMetaDataFatalError;
/**********************************************************************
* Returns whether a field of a class is known to be non-managed.
*
* This method differs from isManagedField() in that a field may or
* may not be managed if its not known as non-managed.
* The following holds (not vice versa!):
* isKnownNonManagedField(classPath, fieldName)
* ==> !isManagedField(classPath, fieldName)
*
* This method doesn't require the field having been declared by
* declareField().
* @param classPath the non-null JVM-qualified name of the class
* @param fieldName the non-null name of the field
* @param fieldSig the non-null type signature of the field
* @return true if this field is known to be non-managed; otherwise false
* @see #isManagedField(String, String)
*
*********************************************************************/
public boolean isKnownNonManagedField(String classPath,
String fieldName,
String fieldSig)
throws JDOMetaDataUserException, JDOMetaDataFatalError;
/**********************************************************************
* Returns whether a field of a class is transient transactional
* or persistent.
*
* A managed field must not be known as non-managed and must be either
* transient transactional or persistent. The following holds:
* isManagedField(classPath, fieldName)
* ==> !isKnownNonManagedField(classPath, fieldName)
* && (isPersistentField(classPath, fieldName)
* ^ isTransactionalField(classPath, fieldName))
*
* This method requires the field having been declared by declareField().
* @param classPath the non-null JVM-qualified name of the class
* @param fieldName the non-null name of the field
* @return true if this field is managed; otherwise false
* @see #isKnownNonManagedField(String, String, String)
* @see #isPersistentField(String, String)
* @see #isPersistenceCapableClass(String)
*********************************************************************/
public boolean isManagedField(String classPath, String fieldName)
throws JDOMetaDataUserException, JDOMetaDataFatalError;
/**********************************************************************
* Returns whether a field of a class is key.
*
* A key field must be persistent.
* The following holds:
* isKeyField(classPath, fieldName)
* ==> isPersistentField(classPath, fieldName)
* && !isDefaultFetchGroupField(classPath, fieldName)
*
* This method requires the field having been declared by declareField().
* @param classPath the non-null JVM-qualified name of the class
* @param fieldName the non-null name of the field
* @return true if this field is key; otherwise false
* @see #isPersistentField(String, String)
*
*********************************************************************/
public boolean isKeyField(String classPath, String fieldName)
throws JDOMetaDataUserException, JDOMetaDataFatalError;
/**********************************************************************
* Returns the field flags for a declared field of a class.
*
* The following holds for the field flags:
* int f = getFieldFlags(classPath, fieldName);
*
* !isManagedField(classPath, fieldName)
* ==> (f & CHECK_READ == 0) && (f & MEDIATE_READ == 0) &&
* (f & CHECK_WRITE == 0) && (f & MEDIATE_WRITE == 0)
*
* isTransientField(classPath, fieldName)
* ==> (f & CHECK_READ == 0) && (f & MEDIATE_READ == 0) &&
* (f & CHECK_WRITE != 0) && (f & MEDIATE_WRITE == 0)
*
* isKeyField(classPath, fieldName)
* ==> (f & CHECK_READ == 0) && (f & MEDIATE_READ == 0) &&
* (f & CHECK_WRITE == 0) && (f & MEDIATE_WRITE != 0)
*
* isDefaultFetchGroupField(classPath, fieldName)
* ==> (f & CHECK_READ != 0) && (f & MEDIATE_READ != 0) &&
* (f & CHECK_WRITE == 0) && (f & MEDIATE_WRITE == 0)
*
* isPersistentField(classPath, fieldName)
* && isKeyField(classPath, fieldName)
* && isDefaultFetchGroupField(classPath, fieldName)
* ==> (f & CHECK_READ == 0) && (f & MEDIATE_READ == 0) &&
* (f & CHECK_WRITE != 0) && (f & MEDIATE_WRITE != 0)
*
* This method requires the field having been declared by declareField().
* @param classPath the non-null JVM-qualified name of the class
* @param fieldName the non-null name of the field
* @return the field flags for this field
*
*********************************************************************/
public int getFieldFlags(String classPath, String fieldName)
throws JDOMetaDataUserException, JDOMetaDataFatalError;
/**********************************************************************
* Returns the field flags for some declared, managed fields of a class.
*
* This method requires all fields having been declared by declareField().
* @param classPath the non-null JVM-qualified name of the class
* @param fieldNames the non-null array of names of the declared fields
* @return the field flags for the fields
*
*********************************************************************/
public int[] getFieldFlags(String classPath, String[] fieldNames)
throws JDOMetaDataUserException, JDOMetaDataFatalError;
/**********************************************************************
* Gets the type of some fields.
*
* @param classname The classname.
* @param fieldnames The fieldnames.
* @return The type of the fields.
*********************************************************************/
public String[] getFieldType(String classname,
String[] fieldnames)
throws JDOMetaDataUserException, JDOMetaDataFatalError;
/**********************************************************************
* Returns the unique field index of some declared, managed fields of a
* class.
*
* This method requires all fields having been declared by declareField().
* @param classPath the non-null JVM-qualified name of the class
* @param fieldNames the non-null array of names of the declared fields
* @return the non-negative, unique field indices
*
*********************************************************************/
public int[] getFieldNo(String classPath, String[] fieldNames)
throws JDOMetaDataUserException, JDOMetaDataFatalError;
/**********************************************************************
* Returns an array of field names of all key fields of a class.
*
* This method requires all fields having been declared by declareField().
* @param classPath the non-null JVM-qualified name of the class
* @return an array of all declared key fields of a class
*
*********************************************************************/
public String[] getKeyFields(String classPath)
throws JDOMetaDataUserException, JDOMetaDataFatalError;
/**********************************************************************
* Returns the name of the persistence-capable superclass of a class.
*
* The following holds:
* (String s = getPersistenceCapableSuperClass(classPath)) != null
* ==> isPersistenceCapableClass(classPath)
* && !isPersistenceCapableRootClass(classPath)
* @param classPath the non-null JVM-qualified name of the class
* @return the name of the PC superclass or null if there is none
* @see #isPersistenceCapableClass(String)
* @see #getPersistenceCapableRootClass(String)
*********************************************************************/
public String getPersistenceCapableSuperClass(String classPath)
throws JDOMetaDataUserException, JDOMetaDataFatalError;
/**********************************************************************
* Returns the name of the key class of the next persistence-capable
* superclass that defines one.
*
* The following holds:
* (String s = getSuperKeyClass(classPath)) != null
* ==> !isPersistenceCapableClass(s)
* && isPersistenceCapableClass(classPath)
* && !isPersistenceCapableRootClass(classPath)
* @param classPath the non-null JVM-qualified name of the class
* @return the name of the key class or null if there is none
* @see #getKeyClass(String)
* @see #getPersistenceCapableSuperClass(String)
*********************************************************************/
public String getSuperKeyClass(String classPath)
throws JDOMetaDataUserException, JDOMetaDataFatalError;
} //ExtendedJDOMetaData
//ExtendedJDOMetaData - Java Source End