edu.mit.blocks.codeblocks

Class InfixRule

java.lang.Object

edu.mit.blocks.codeblocks.InfixRule

All Implemented Interfaces:

LinkRule, WorkspaceListener

public class InfixRule
extends java.lang.Object
implements LinkRule, WorkspaceListener

InfixRule specifies a rule for Block linking. Allows users to insert infix blocks in between two blocks.

Constructor Summary

Constructors

Constructor and Description
InfixRule()

Method Summary

Modifier and Type	Method and Description
boolean	canLink(Block block1, Block block2, BlockConnector socket1, BlockConnector socket2) Returns true if the two sockets of the two blocks can link; false if not
boolean	isMandatory()
void	workspaceEventOccurred(WorkspaceEvent e) Invoked whenever any of the enumerated events specified within WorkspaceEvent occur.

Methods inherited from class java.lang.Object

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

Constructor Detail

InfixRule

public InfixRule()

Method Detail

canLink

public boolean canLink(Block block1,
                       Block block2,
                       BlockConnector socket1,
                       BlockConnector socket2)

Returns true if the two sockets of the two blocks can link; false if not

Specified by:

canLink in interface LinkRule

Parameters:

block1 - the associated Block of socket1

block2 - the associated Block of socket2

socket1 - a Socket of block1

socket2 - a Socket of block2

Returns:

true if the two sockets of the two blocks can link; false if not

isMandatory

public boolean isMandatory()

Specified by:

isMandatory in interface LinkRule

workspaceEventOccurred

public void workspaceEventOccurred(WorkspaceEvent e)

Description copied from interface: WorkspaceListener

Invoked whenever any of the enumerated events specified within WorkspaceEvent occur. We leave it to the implementor to look at the event type and determine what to do from there. We chose this design so that listeners need not implement all X methods, where X is the number of workspace events.

Specified by:

workspaceEventOccurred in interface WorkspaceListener

Parameters:

e - WorkspaceEvent object holding information regarding the triggered event.