edu.ksu.cis.projects.bogor.symboltable
Class ExtSymbolTable

java.lang.Object
  edu.ksu.cis.projects.bogor.symboltable.ExtSymbolTable

All Implemented Interfaces:

Disposable, Serializable

public class ExtSymbolTable
extends Object
implements Disposable, Serializable

This class is used as a symbol table for an action/expression extension.

Version:

CVS $Revision: 1.4 $ $Date: 2004/09/14 04:07:37 $

Author:

Robby

See Also:

Serialized Form

Field Summary

protected String	className The fully qualified Java class name of the module that implements this extension.
protected Type	expType The expression type of this extension.
protected int	extDesc Holds the extension descriptor.
protected String	extId The extension id of this extension.
protected String	id The id of this extension.
protected boolean	isAction Indicates whether this symbol table is used for an action extension (or an expression extension).
protected Method	m Holds the Java method that implements this extension.
protected Type[]	paramTypes The parameter types of this extension.
protected String[]	typeVarIds The type variable ids of this extension.
protected boolean	variableParamLength Indicates whether this extension has a variable length parameter.

Constructor Summary

ExtSymbolTable(boolean isAction, int extDesc, String extId, String id, String className, String[] typeVarIds, Type[] paramTypes, boolean variableParamLength)
Default constructor.

Method Summary

void	dispose() Remove references.
String	getClassName() Gets the fully qualified Java class name of the module that implements this extension.
Type	getExpType() Gets the expression type of this extension.
int	getExtDesc() Gets this extension descriptor.
String	getExtId() Gets the extension id of this extension.
String	getId() Gets the id of this extension.
Method	getMethod() Gets the Java method that implements this extension.
Type	getParameterType(int index) Gets the parameter type at a certain index.
int	getParameterTypeCount() Gets the number of parameter types.
int	getTypeVariableCount() Gets the number of type variables.
String	getTypeVariableId(int index) Gets the type variable id at a certain index.
boolean	isAction() Determines whether this symbol table is used for an action extension.
boolean	isVariableParamLength() Determines whether this extension has a variable length parameter.
void	setExpType(Type type) Sets the expression type of this extension.
void	setMethod(Method method) Sets the Java method that implements this extension.
String	toString() Returns the String representation of this symbol table.

Methods inherited from class java.lang.Object

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

Field Detail

isAction

protected boolean isAction

Indicates whether this symbol table is used for an action extension (or an expression extension).

extDesc

protected int extDesc

Holds the extension descriptor.

className

protected String className

The fully qualified Java class name of the module that implements this extension. Non-null.

extId

protected String extId

The extension id of this extension. Non-null.

id

protected String id

The id of this extension. Non-null.

expType

protected Type expType

The expression type of this extension. Null if isAction is true. Non-null otherwise.

paramTypes

protected Type[] paramTypes

The parameter types of this extension. Non-null. Each element is non-null.

typeVarIds

protected String[] typeVarIds

The type variable ids of this extension. Non-null. Each element is non-null.

variableParamLength

protected boolean variableParamLength

Indicates whether this extension has a variable length parameter.

m

protected Method m

Holds the Java method that implements this extension.

Constructor Detail

ExtSymbolTable

public ExtSymbolTable(boolean isAction,
                      int extDesc,
                      String extId,
                      String id,
                      String className,
                      String[] typeVarIds,
                      Type[] paramTypes,
                      boolean variableParamLength)

Default constructor.

Parameters:

isAction - Indicates whether this symbol table is used for an action extension (or an expression extension)

extDesc - The extension descriptor for this extension.

extId - The extension id of this extension. Must be non-null.

id - The id of this extension. Must be non-null.

className - The fully qualified Java class name of the module that implements this extension. Must be non-null.

typeVarIds - The type variable ids of this extension. Must be non-null. Each element must be non-null.

paramTypes - The parameter types of this extension. Must be non-null. Each element must be non-null.

variableParamLength - Indicates whether this extension has a variable length parameter.

Method Detail

isAction

public boolean isAction()

Determines whether this symbol table is used for an action extension.

Returns:

True, if this symbol table is used for an action extension. False, if this symbol table is used for an expression extension.

getClassName

public String getClassName()

Gets the fully qualified Java class name of the module that implements this extension.

Returns:

The fully qualified Java class name of the module that implements this extension. Non-null.

setExpType

public void setExpType(Type type)

Sets the expression type of this extension.

Parameters:

type - The expression type for this extension. Must be non-null and isAction is false.

getExpType

public Type getExpType()

Gets the expression type of this extension.

Returns:

The expression type of this extension. Non-null if isAction is false.

getExtDesc

public int getExtDesc()

Gets this extension descriptor.

Returns:

This extension descriptor.

getExtId

public String getExtId()

Gets the extension id of this extension.

Returns:

The extension id of this extension. Non-null.

getId

public String getId()

Gets the id of this extension.

Returns:

The id of this extension. Non-null.

setMethod

public void setMethod(Method method)

Sets the Java method that implements this extension.

Parameters:

method - The Java method that implements this extension. Must be non-null.

getMethod

public Method getMethod()

Gets the Java method that implements this extension.

Returns:

The Java method that implements this extension. Non-null.

getParameterType

public Type getParameterType(int index)

Gets the parameter type at a certain index.

Parameters:

index - The index of the parameter. Must be between 0 and getParameterTypeCount() - 1.

Returns:

The parameter type at the given index. Non-null.

getParameterTypeCount

public int getParameterTypeCount()

Gets the number of parameter types.

Returns:

The number of parameter types.

getTypeVariableCount

public int getTypeVariableCount()

Gets the number of type variables.

Returns:

The number of type variables.

getTypeVariableId

public String getTypeVariableId(int index)

Gets the type variable id at a certain index.

Parameters:

index - The index of the type variable. Must be between 0 and getTypeVariableCount() - 1.

Returns:

The type variable id at the given index. Non-null.

isVariableParamLength

public boolean isVariableParamLength()

Determines whether this extension has a variable length parameter.

Returns:

True, if this extension has a variable length parameter. False, otherwise.

dispose

public void dispose()

Description copied from interface: Disposable

Remove references. Once called, avoid using this object.

Specified by:

dispose in interface Disposable

toString

public String toString()

Returns the String representation of this symbol table.

Overrides:

toString in class Object

Returns:

The String representation of this symbol table. Non-null.