extendToLinkBoundary Whether to extend the selection to include the entire text of any existing links overlapped by the selection, and then apply the change.

href The URI to be associated with the link. If href is an empty string, the URI of links in the selection are removed.

target The target of the link.

Creates an ApplyLinkOperation object.

This code snippet shows a use of the ApplyLinkOperation class. Before an operation of this type is executed, the link being applied to this TextFlow is verified. If the link is invalid, the event is cancelled and the link is not applied.

textFlow.addEventListener(FlowOperationEvent.FLOW_OPERATION_BEGIN, opBeginHandler);

public function opBeginHandler(evt:FlowOperationEvent):void { 
    var flowOp:FlowOperation = evt.operation; 
    if(flowOp is ApplyLinkOperation && evt.cancellable) {
        //if link is invalid, cancel link operation
        if(!linkValid(flowOp.textFlow) && evt.cancellable) {
            evt.preventDefault();
        }
    }
}
private function linkValid(tf:TextFlow):boolean { 
    //code to check inserted link text in this TextFlow for validity
}