Package com.arcadedb.engine

Class Dictionary

java.lang.Object

com.arcadedb.engine.PaginatedComponent

com.arcadedb.engine.Dictionary

public class Dictionary
extends PaginatedComponent

HEADER = [itemCount(int:4),pageSize(int:4)] CONTENT-PAGES = [propertyName(string)]

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Dictionary.PaginatedComponentFactoryHandler

Field Summary

Fields

Modifier and Type	Field	Description
static int	DEF_PAGE_SIZE
static String	DICT_EXT

Fields inherited from class com.arcadedb.engine.PaginatedComponent

database, file, id, name, pageCount, pageSize, version

Constructor Summary

Constructors

Constructor	Description
Dictionary(DatabaseInternal database, String name, String filePath, int id, PaginatedFile.MODE mode, int pageSize, int version)	Called at load time.
Dictionary(DatabaseInternal database, String name, String filePath, PaginatedFile.MODE mode, int pageSize)	Called at creation time.

Method Summary

Modifier and Type	Method	Description
Map<String,Integer>	getDictionaryMap()
int	getIdByName(String name, boolean create)
String	getNameById(int nameId)
void	reload()
void	updateName(String oldName, String newName)	Updates a name.

Methods inherited from class com.arcadedb.engine.PaginatedComponent

close, getDatabase, getId, getMainComponent, getName, getOSFile, getPageSize, getTotalPages, getVersion, onAfterCommit, onAfterLoad, setPageCount

Methods inherited from class java.lang.Object

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

Field Detail

DICT_EXT

public static final String DICT_EXT

See Also:

Constant Field Values

DEF_PAGE_SIZE

public static final int DEF_PAGE_SIZE

See Also:

Constant Field Values

Constructor Detail

Dictionary

public Dictionary(DatabaseInternal database,
                  String name,
                  String filePath,
                  PaginatedFile.MODE mode,
                  int pageSize)
           throws IOException

Called at creation time.

Throws:

IOException

Dictionary

public Dictionary(DatabaseInternal database,
                  String name,
                  String filePath,
                  int id,
                  PaginatedFile.MODE mode,
                  int pageSize,
                  int version)
           throws IOException

Called at load time.

Throws:

IOException

Method Detail

getIdByName

public int getIdByName(String name,
                       boolean create)

getNameById

public String getNameById(int nameId)

getDictionaryMap

public Map<String,Integer> getDictionaryMap()

updateName

public void updateName(String oldName,
                       String newName)

Updates a name. The update will impact the entire database with both properties and values (if used as ENUM). The update is valid only if the name has not been used as type name.

Parameters:

oldName - The old name to rename. Must be already present in the schema dictionary

newName - The new name. Can be already present in the schema dictionary

reload

public void reload()
            throws IOException

Throws:

IOException