setIgnoreCache(ignoreCache) - JDO Query's method

void setIgnoreCache(
  boolean ignoreCache

Set the ignoreCache option. The default value for this option was set by the PersistenceManagerFactory or the PersistenceManager used to create this Query. The ignoreCache option setting specifies whether the query should execute entirely in the back end, instead of in the cache. If this flag is set to true, an implementation might be able to optimize the query execution by ignoring changed values in the cache. For optimistic transactions, this can dramatically improve query response times.
ignoreCache - the setting of the ignoreCache option.
JDO 1.0

This documentation page is derived (with some adjustments) from the JDO 2.2 API
and is available under the terms of the Apache License, v. 2.0.