org.maverickdbms.basic
Interface Resolver

All Known Implementing Classes:

DefaultResolver

public interface Resolver

Field Summary

static boolean	DEFAULT_REGISTER_FILE_OPENS
static boolean	DEFAULT_REGISTER_RESOLVER
static java.lang.String	PROP_REGISTER_FILE_OPENS
static java.lang.String	PROP_REGISTER_RESOLVER

Method Summary

void	createFile(ConstantString type, ConstantString name, int flags, ConstantString[] fields) Create the specified file.
void	deleteList(ConstantString name, mvString status) Removes the specified list.
void	dropFile(ConstantString type, ConstantString name) Removes the specified file.
Resolver	getNextResolver() Gets the next resolver in the chain
Program	resolveCommand(ConstantString command) Resolve the specified command
ConstantString	resolveFile(Program program, mvString var, ConstantString type, ConstantString name, int flags, mvString status) Find and open the specified file.
ConstantString	resolveList(mvString var, mvString count, ConstantString name, mvString status) Resolve the specified list
Program	resolveProgram(ConstantString name) Resolve the specified program
void	setNextResolver(Resolver next) Sets the next resolver in the chain
void	writeList(ConstantString var, ConstantString record, mvString status) Write the specified item as a list

Field Detail

PROP_REGISTER_FILE_OPENS

public static final java.lang.String PROP_REGISTER_FILE_OPENS

See Also:

Constant Field Values

PROP_REGISTER_RESOLVER

public static final java.lang.String PROP_REGISTER_RESOLVER

See Also:

Constant Field Values

DEFAULT_REGISTER_FILE_OPENS

public static final boolean DEFAULT_REGISTER_FILE_OPENS

See Also:

Constant Field Values

DEFAULT_REGISTER_RESOLVER

public static final boolean DEFAULT_REGISTER_RESOLVER

See Also:

Constant Field Values

Method Detail

createFile

public void createFile(ConstantString type,
                       ConstantString name,
                       int flags,
                       ConstantString[] fields)
                throws mvException

Create the specified file.

Parameters:

type - the type of the file.

name - the name of the file

flags - optional flags

fields - extra arguments needed for file creation

Throws:

mvException

deleteList

public void deleteList(ConstantString name,
                       mvString status)
                throws mvException

Removes the specified list.

Parameters:

name - the list to remove.

status - the status variable to set on success

Throws:

mvException

dropFile

public void dropFile(ConstantString type,
                     ConstantString name)
              throws mvException

Removes the specified file.

Parameters:

type - the type of the file.

name - the name of the file.

Throws:

mvException

getNextResolver

public Resolver getNextResolver()

Gets the next resolver in the chain

Returns:

the next resolver or null

resolveFile

public ConstantString resolveFile(Program program,
                                  mvString var,
                                  ConstantString type,
                                  ConstantString name,
                                  int flags,
                                  mvString status)
                           throws mvException

Find and open the specified file.

Parameters:

program - the program opening the specified file

type - the type of file to open

name - the name of the file to open

flags - any optional flags

status - the status variable to set on success

Throws:

mvException

resolveCommand

public Program resolveCommand(ConstantString command)
                       throws mvException

Resolve the specified command

Parameters:

command - the command to parse

Returns:

the program representing the parsed command

Throws:

mvException

resolveList

public ConstantString resolveList(mvString var,
                                  mvString count,
                                  ConstantString name,
                                  mvString status)
                           throws mvException

Resolve the specified list

Parameters:

var - the variable to contain the resulting list

count - the number of elements in the list

name - the name of the list

status - the status variable to set on success

Returns:

whether the list was successfully resolved

Throws:

mvException

resolveProgram

public Program resolveProgram(ConstantString name)
                       throws mvException

Resolve the specified program

Parameters:

name - the name of the program

Returns:

the program

Throws:

mvException

setNextResolver

public void setNextResolver(Resolver next)

Sets the next resolver in the chain

Parameters:

next - the next resolver

writeList

public void writeList(ConstantString var,
                      ConstantString record,
                      mvString status)
               throws mvException

Write the specified item as a list

Parameters:

var - the item to write

record - the name to store the list under

status - the status variable to set on success

Throws:

mvException