Struct xpcom::interfaces::rdfITripleVisitor

#[repr(C)]
pub struct rdfITripleVisitor { /* fields omitted */ }

interface rdfITripleVisitor : nsISupports

/**
 * Interface used in RDF to enumerate triples.
 * Also used by rdfIDataSource::getAllSubjects, then aPredicate,
 * aObject and aTruthValue are ignored.
 *
 * @status PLASMA
 */

Methods

impl rdfITripleVisitor

pub fn coerce<T: rdfITripleVisitorCoerce>(&self) -> &T

Cast this rdfITripleVisitor to one of its base interfaces.

impl rdfITripleVisitor

pub unsafe fn Visit(
    &self,
    aSubject: *const nsIRDFNode,
    aPredicate: *const nsIRDFResource,
    aObject: *const nsIRDFNode,
    aTruthValue: bool
) -> nsresult

/**
     * Callback function for returning query results.
     *
     * @param aSubject, aPredicate, aObject describe the (sub-)arc
     * @returnCode NS_RDF_STOP_VISIT to stop iterating over the query result.
     *             Any error code will stop the iteration as well.
     */

void visit (in nsIRDFNode aSubject, in nsIRDFResource aPredicate, in nsIRDFNode aObject, in boolean aTruthValue);

Methods from Deref<Target = nsISupports>

pub fn coerce<T: nsISupportsCoerce>(&self) -> &T

Cast this nsISupports to one of its base interfaces.

pub unsafe fn QueryInterface(
    &self,
    uuid: &nsIID,
    result: *mut *mut c_void
) -> nsresult

void QueryInterface (in nsIIDRef uuid, [iid_is (uuid), retval] out nsQIResult result);

pub unsafe fn AddRef(&self) -> nsrefcnt

[noscript,notxpcom] nsrefcnt AddRef ();

pub unsafe fn Release(&self) -> nsrefcnt

[noscript,notxpcom] nsrefcnt Release ();

Trait Implementations

impl XpCom for rdfITripleVisitor

const IID: nsIID

IID: nsIID = nsID(2868814161, 49777, 17669, [153, 120, 161, 0, 210, 146, 128, 12])

fn query_interface<T: XpCom>(&self) -> Option<RefPtr<T>>

Perform a QueryInterface call on this object, attempting to dynamically cast it to the requested interface type. Returns Some(RefPtr) if the cast succeeded, and None otherwise.

impl RefCounted for rdfITripleVisitor

unsafe fn addref(&self)

Increment the reference count.

unsafe fn release(&self)

Decrement the reference count, potentially freeing backing memory.

impl Deref for rdfITripleVisitor

type Target = nsISupports

The resulting type after dereferencing.

fn deref(&self) -> &nsISupports

Dereferences the value.