return the singleton change validator . concode_field_sep org.eclipse.core.resources.mapping.ResourceChangeValidator instance concode_field_sep IResourceChangeDescriptionFactory createDeltaFactory concode_elem_sep IStatus combineResults concode_elem_sep IStatus validateChange concode_elem_sep IResource[] getRootResources concode_elem_sep ModelProvider[] getProviders
org . eclipse . core . resources . mapping . ResourceChangeValidator function ( ) { if ( instance == null ) instance = new org . eclipse . core . resources . mapping . ResourceChangeValidator ( ) ; return instance ; }