WKID question of OGCGeometry.fromText() and OGCGeometry.fromBinary()

public static OGCGeometry fromText(String text) {
OperatorImportFromWkt op = (OperatorImportFromWkt)OperatorFactoryLocal.getInstance().getOperator(Type.ImportFromWkt);
OGCStructure ogcStructure = op.executeOGC(0, text, (ProgressTracker)null);
return createFromOGCStructure(ogcStructure, SpatialReference.create(4326));
}
For this function (same as fromBinary), it will output OGCGeometry using the WKID 4326 directly. If the input text has some information of SRID which is not 4326, what should we do? Or current api for all the relations (such as st_contains, st_intersects etc.) is just suited for 4326 spatial reference system. In the function fromGeoJson or fromJson, it will parse the WKID from the Json input and set the SpatialReference. Here, I have a question: if the SRID is not 4326, when we do the relation query for these geometries, do we use the spatial reference system in the input JSON, or we change the spatial reference system to the 4326? Thank you!