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Eclipse Platform
Release 3.5
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org.eclipse.debug.core.model
Interface IBreakpoint

All Superinterfaces:
IAdaptable
All Known Subinterfaces:
ILineBreakpoint, IWatchpoint
All Known Implementing Classes:
Breakpoint, LineBreakpoint 
public interface IBreakpoint

extends 
IAdaptable

A breakpoint is capable of suspending the execution of a program at a specific location when a program is running in debug mode. Each breakpoint has an associated marker which stores and persists all attributes associated with a breakpoint.

A breakpoint is defined in two parts:

  1. By an extension of kind "org.eclipse.debug.core.breakpoints"
  2. By a marker definition that corresponds to the above breakpoint extension

For example, following is a definition of corresponding breakpoint and breakpoint marker definitions. Note that the markerType attribute defined by the breakpoint extension corresponds to the type of the marker definition. 

 <extension point="org.eclipse.debug.core.breakpoints">
   <breakpoint 
      id="com.example.Breakpoint"
      class="com.example.Breakpoint"
      markerType="com.example.BreakpointMarker">
   </breakpoint>
 </extension>
 <extension point="org.eclipse.core.resources.markers">
   <marker 
      id="com.example.BreakpointMarker"
      super type="org.eclipse.debug.core.breakpointMarker"
      attribute name ="exampleAttribute">
   </marker>
 </extension>

The breakpoint manager instantiates persisted breakpoints by traversing all markers that are a subtype of "org.eclipse.debug.core.breakpointMarker", and instantiating the class defined by the class attribute on the associated breakpoint extension. The method setMarker is then called to associate a marker with the breakpoint.

Breakpoints may or may not be registered with the breakpoint manager, and are persisted and restored as such. Since marker definitions only allow all or none of a specific marker type to be persisted, breakpoints define a PERSISTED attribute for selective persistence of breakpoints of the same type.

Since:
2.0

Field Summary
static  String BREAKPOINT_MARKER
          Root breakpoint marker type (value "org.eclipse.debug.core.breakpointMarker").
static  String ENABLED
          Enabled breakpoint marker attribute (value "org.eclipse.debug.core.enabled").
static  String ID
          Debug model identifier breakpoint marker attribute (value "org.eclipse.debug.core.id").
static  String LINE_BREAKPOINT_MARKER
          Line breakpoint marker type (value "org.eclipse.debug.core.lineBreakpoint").
static  String PERSISTED
          Persisted breakpoint marker attribute (value "org.eclipse.debug.core.persisted").
static  String REGISTERED
          Registered breakpoint marker attribute (value "org.eclipse.debug.core.registered").
 
Method Summary
 void delete ()
          Deletes this breakpoint's underlying marker, and removes this breakpoint from the breakpoint manager.
  IMarker getMarker ()
          Returns the marker associated with this breakpoint, or null if no marker is associated with this breakpoint.
  String getModelIdentifier ()
          Returns the identifier of the debug model this breakpoint is associated with.
 boolean isEnabled ()
          Returns whether this breakpoint is enabled
 boolean isPersisted ()
          Returns whether this breakpoint is to be persisted across workspace invocations, or when a project is closed and re-opened.
 boolean isRegistered ()
          Returns whether this breakpoint is currently registered with the breakpoint manager.
 void setEnabled (boolean enabled)
          Sets the enabled state of this breakpoint.
 void setMarker ( IMarker marker)
          Sets the marker associated with this breakpoint.
 void setPersisted (boolean registered)
          Sets whether this breakpoint is to be persisted across workspace invocations, or when a project is closed and re-opened.
 void setRegistered (boolean registered)
          Sets whether this breakpoint is currently registered with the breakpoint manager.
 
Methods inherited from interface org.eclipse.core.runtime. IAdaptable
getAdapter
 

Field Detail

BREAKPOINT_MARKER

static final 
String BREAKPOINT_MARKER
Root breakpoint marker type (value "org.eclipse.debug.core.breakpointMarker").

LINE_BREAKPOINT_MARKER

static final 
String LINE_BREAKPOINT_MARKER
Line breakpoint marker type (value "org.eclipse.debug.core.lineBreakpoint").

ENABLED

static final 
String ENABLED
Enabled breakpoint marker attribute (value "org.eclipse.debug.core.enabled"). The attribute is a boolean corresponding to the enabled state of a breakpoint.

See Also:
IMarker.getAttribute(String, boolean), Constant Field Values

ID

static final 
String ID
Debug model identifier breakpoint marker attribute (value "org.eclipse.debug.core.id"). The attribute is a String corresponding to the identifier of the debug model a breakpoint is associated with.

See Also:
Constant Field Values

REGISTERED

static final 
String REGISTERED
Registered breakpoint marker attribute (value "org.eclipse.debug.core.registered"). The attribute is a boolean corresponding to whether a breakpoint has been registered with the breakpoint manager.

See Also:
IMarker.getAttribute(String, boolean), Constant Field Values

PERSISTED

static final 
String PERSISTED
Persisted breakpoint marker attribute (value "org.eclipse.debug.core.persisted"). The attribute is a boolean corresponding to whether a breakpoint is to be persisted across workspace invocations.

See Also:
IMarker.getAttribute(String, boolean), Constant Field Values
Method Detail

delete

void delete()
            throws 
CoreException
Deletes this breakpoint's underlying marker, and removes this breakpoint from the breakpoint manager.

Throws:
CoreException - if unable to delete this breakpoint's underlying marker

getMarker


IMarker getMarker()
Returns the marker associated with this breakpoint, or null if no marker is associated with this breakpoint.

Returns:
associated marker, or null if there is no associated marker.

setMarker

void setMarker(
IMarker marker)
               throws 
CoreException
Sets the marker associated with this breakpoint. This method is called once at breakpoint creation.

Parameters:
marker - the marker to associate with this breakpoint
Throws:
CoreException - if an error occurs accessing the marker

getModelIdentifier


String getModelIdentifier()
Returns the identifier of the debug model this breakpoint is associated with.

Returns:
the identifier of the debug model this breakpoint is associated with

isEnabled

boolean isEnabled()
                  throws 
CoreException
Returns whether this breakpoint is enabled

Returns:
whether this breakpoint is enabled
Throws:
CoreException - if unable to access the associated attribute from this breakpoint's underlying marker

setEnabled

void setEnabled(boolean enabled)
                throws 
CoreException
Sets the enabled state of this breakpoint. This has no effect if the current enabled state is the same as specified by the enabled parameter.

Parameters:
enabled - whether this breakpoint should be enabled
Throws:
CoreException - if unable to set the associated attribute on this breakpoint's underlying marker.

isRegistered

boolean isRegistered()
                     throws 
CoreException
Returns whether this breakpoint is currently registered with the breakpoint manager.

Returns:
whether this breakpoint is currently registered with the breakpoint manager
Throws:
CoreException - if unable to access the associated attribute on this breakpoint's underlying marker

setRegistered

void setRegistered(boolean registered)
                   throws 
CoreException
Sets whether this breakpoint is currently registered with the breakpoint manager.

Parameters:
registered - whether this breakpoint is registered with the breakpoint manager
Throws:
CoreException - if unable to set the associated attribute on this breakpoint's underlying marker.

isPersisted

boolean isPersisted()
                    throws 
CoreException
Returns whether this breakpoint is to be persisted across workspace invocations, or when a project is closed and re-opened. Since marker definitions only allow all/none of a specific type of marker to be persisted (rather than selected markers of a specific type), breakpoints define this functionality.

Returns:
whether this breakpoint is to be persisted
Throws:
CoreException - if unable to access the associated attribute on this breakpoint's underlying marker

setPersisted

void setPersisted(boolean registered)
                  throws 
CoreException
Sets whether this breakpoint is to be persisted across workspace invocations, or when a project is closed and re-opened. Has no effect if this breakpoint's marker definition is defined as not persisted. Sets the underlying TRANSIENT attribute on this breakpoint's marker to true.

Parameters:
registered - whether this breakpoint is to be persisted across workspace invocations
Throws:
CoreException - if unable to set the associated attribute on this breakpoint's underlying marker.
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Eclipse Platform
Release 3.5
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