Users can define and query for markers of a given type. Marker types are defined in a hierarchy that supports multiple-inheritance. Marker type definitions also specify a number attributes which must or may be present on a marker of that type as well as whether or not markers of that type should be persisted.
The markers extension-point allows marker writers to register their marker types under a symbolic name that is then used from within the workspace to create and query markers. The symbolic name is the id of the marker extension. When defining a marker extension, users are encouraged to include a human-readable value for the "name" attribute which indentifies their marker and potentially may be presented to users.
<!ELEMENT extension (super* , persistent? , attribute*)>
point CDATA #REQUIRED
id CDATA #REQUIRED
name CDATA #IMPLIED>
<!ELEMENT super EMPTY>
type IDREF #REQUIRED>
<!ELEMENT persistent EMPTY>
value (true | false)>
<!ELEMENT attribute EMPTY>
name CDATA #REQUIRED>
<extension id="com.xyz.coolMarker" point="org.eclipse.core.resources.markers" name="Cool Marker"> <persistent value="true"/> <super type="org.eclipse.core.resources.problemmarker"/> <super type="org.eclipse.core.resources.textmarker"/> <attribute name="owner"/> </extension>
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All rights reserved. This program and the accompanying materials are made available under the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at http://www.eclipse.org/legal/epl-v10.html