driver-legacy/src/main/com/mongodb/DBCollection.java
public boolean isCapped() {
        CommandResult commandResult = getStats();
        Object cappedField = commandResult.get("capped");
        return cappedField != null && (cappedField.equals(1) || cappedField.equals(true));
    }
public boolean isCapped() {
        CommandResult commandResult = getStats();
        Object cappedField = commandResult.get("capped");
        return cappedField != null && (cappedField.equals(1) || cappedField.equals(true));
    }
public boolean isCapped ( ) { CommandResult commandResult = getStats ( ) ; Object cappedField = commandResult . get ( "capped" ) ; return cappedField != null && ( cappedField . equals ( 1 ) || cappedField . equals ( true ) ) ; }
Checks whether this collection is capped

@return true if this is a capped collection
@mongodb.driver.manual /core/capped-collections/#check-if-a-collection-is-capped Capped Collections
Checks whether this collection is capped