core/src/main/java/com/orientechnologies/orient/core/db/document/ODatabaseDocumentAbstract.java
public long countView(final String viewName) {
    final OView cls = getMetadata().getImmutableSchemaSnapshot().getView(viewName);
    if (cls == null)
      throw new IllegalArgumentException("View '" + cls + "' not found in database");

    return countClass(cls, false);
  }
public long countView(final String viewName) {
    final OView cls = getMetadata().getImmutableSchemaSnapshot().getView(viewName);
    if (cls == null)
      throw new IllegalArgumentException("View '" + cls + "' not found in database");

    return countClass(cls, false);
  }
Returns the number of the records of the class iClassName.