question: public void addAttributeValidationModeUsage ( ModeUsage modeUsage ) { int ap = modeUsage . getAttributeProcessing ( ) ; if ( ap != Mode . ATTRIBUTE_PROCESSING_NONE ) { attributeValidationModeUsages . addElement ( modeUsage ) ; attributeProcessing = Math . max ( ap , attributeProcessing ) ; if ( modeUsage . isContextDependent ( ) ) contextDependent = true ; } }
target:  Adds a mode usage to the attributeValidationModeUsages list if we process attributes.