本文整理汇总了Java中org.apache.solr.search.SolrIndexSearcher.getFieldValueCache方法的典型用法代码示例。如果您正苦于以下问题：Java SolrIndexSearcher.getFieldValueCache方法的具体用法？Java SolrIndexSearcher.getFieldValueCache怎么用？Java SolrIndexSearcher.getFieldValueCache使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.solr.search.SolrIndexSearcher的用法示例。
在下文中一共展示了SolrIndexSearcher.getFieldValueCache方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: getUnInvertedField
import org.apache.solr.search.SolrIndexSearcher; //导入方法依赖的package包/类
public static UnInvertedField getUnInvertedField(String field, SolrIndexSearcher searcher) throws IOException {
SolrCache<String,UnInvertedField> cache = searcher.getFieldValueCache();
if (cache == null) {
return new UnInvertedField(field, searcher);
}
UnInvertedField uif = null;
Boolean doWait = false;
synchronized (cache) {
uif = cache.get(field);
if (uif == null) {
/**
* We use this place holder object to pull the UninvertedField construction out of the sync
* so that if many fields are accessed in a short time, the UninvertedField can be
* built for these fields in parallel rather than sequentially.
*/
cache.put(field, uifPlaceholder);
} else {
if (uif != uifPlaceholder) {
return uif;
}
doWait = true; // Someone else has put the place holder in, wait for that to complete.
}
}
while (doWait) {
try {
synchronized (cache) {
uif = cache.get(field); // Should at least return the placeholder, NPE if not is OK.
if (uif != uifPlaceholder) { // OK, another thread put this in the cache we should be good.
return uif;
}
cache.wait();
}
} catch (InterruptedException e) {
throw new SolrException(SolrException.ErrorCode.SERVER_ERROR, "Thread interrupted in getUninvertedField.");
}
}
uif = new UnInvertedField(field, searcher);
synchronized (cache) {
cache.put(field, uif); // Note, this cleverly replaces the placeholder.
cache.notifyAll();
}
return uif;
}