本文整理汇总了Java中org.apache.lucene.util.CharsRefBuilder.setCharAt方法的典型用法代码示例。如果您正苦于以下问题：Java CharsRefBuilder.setCharAt方法的具体用法？Java CharsRefBuilder.setCharAt怎么用？Java CharsRefBuilder.setCharAt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.lucene.util.CharsRefBuilder的用法示例。
在下文中一共展示了CharsRefBuilder.setCharAt方法的2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: toContextQuery
import org.apache.lucene.util.CharsRefBuilder; //导入方法依赖的package包/类
/**
* Wraps a {@link CompletionQuery} with context queries
*
* @param query base completion query to wrap
* @param queryContexts a map of context mapping name and collected query contexts
* @return a context-enabled query
*/
public ContextQuery toContextQuery(CompletionQuery query, Map<String, List<ContextMapping.InternalQueryContext>> queryContexts) {
ContextQuery typedContextQuery = new ContextQuery(query);
if (queryContexts.isEmpty() == false) {
CharsRefBuilder scratch = new CharsRefBuilder();
scratch.grow(1);
for (int typeId = 0; typeId < contextMappings.size(); typeId++) {
scratch.setCharAt(0, (char) typeId);
scratch.setLength(1);
ContextMapping mapping = contextMappings.get(typeId);
List<ContextMapping.InternalQueryContext> internalQueryContext = queryContexts.get(mapping.name());
if (internalQueryContext != null) {
for (ContextMapping.InternalQueryContext context : internalQueryContext) {
scratch.append(context.context);
typedContextQuery.addContext(scratch.toCharsRef(), context.boost, !context.isPrefix);
scratch.setLength(1);
}
}
}
}
return typedContextQuery;
}
示例2: analyze
import org.apache.lucene.util.CharsRefBuilder; //导入方法依赖的package包/类
/** Sugar: analyzes the text with the analyzer and
* separates by {@link SynonymMap#WORD_SEPARATOR}.
* reuse and its chars must not be null. */
public CharsRef analyze(String text, CharsRefBuilder reuse) throws IOException {
try (TokenStream ts = analyzer.tokenStream("", text)) {
CharTermAttribute termAtt = ts.addAttribute(CharTermAttribute.class);
PositionIncrementAttribute posIncAtt = ts.addAttribute(PositionIncrementAttribute.class);
ts.reset();
reuse.clear();
while (ts.incrementToken()) {
int length = termAtt.length();
if (length == 0) {
throw new IllegalArgumentException("term: " + text + " analyzed to a zero-length token");
}
if (posIncAtt.getPositionIncrement() != 1) {
throw new IllegalArgumentException("term: " + text + " analyzed to a token with posinc != 1");
}
reuse.grow(reuse.length() + length + 1); /* current + word + separator */
int end = reuse.length();
if (reuse.length() > 0) {
reuse.setCharAt(end++, SynonymMap.WORD_SEPARATOR);
reuse.setLength(reuse.length() + 1);
}
System.arraycopy(termAtt.buffer(), 0, reuse.chars(), end, length);
reuse.setLength(reuse.length() + length);
}
ts.end();
}
if (reuse.length() == 0) {
throw new IllegalArgumentException("term: " + text + " was completely eliminated by analyzer");
}
return reuse.get();
}