Example usage for org.apache.lucene.index.memory MemoryIndex reset

Introduction

In this page you can find the example usage for org.apache.lucene.index.memory MemoryIndex reset.

Prototype

public void reset() 

Source Link

Document

Resets the MemoryIndex to its initial state and recycles all internal buffers.

Usage

From source file:com.orientechnologies.lucene.operator.OLuceneTextOperator.java

License:Apache License

@Override
public Object evaluateRecord(OIdentifiable iRecord, ODocument iCurrentResult, OSQLFilterCondition iCondition,
        Object iLeft, Object iRight, OCommandContext iContext) {

    OLuceneFullTextIndex index = involvedIndex(iRecord, iCurrentResult, iCondition, iLeft, iRight);

    if (index == null) {
        throw new OCommandExecutionException("Cannot evaluate lucene condition without index configuration.");
    }/*from w  w w.  jav a 2 s.  co m*/
    MemoryIndex memoryIndex = (MemoryIndex) iContext.getVariable("_memoryIndex");
    if (memoryIndex == null) {
        memoryIndex = new MemoryIndex();
        iContext.setVariable("_memoryIndex", memoryIndex);
    }
    memoryIndex.reset();
    Document doc = index.buildDocument(iLeft);

    for (IndexableField field : doc.getFields()) {
        memoryIndex.addField(field.name(), field.stringValue(), index.analyzer(field.name()));
    }
    Query query = null;
    try {
        query = index.buildQuery(iRight);
    } catch (Exception e) {
        throw new OCommandExecutionException("Error executing lucene query.", e);
    }
    return memoryIndex.search(query) > 0.0f;
}

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From source file:com.orientechnologies.lucene.tx.OLuceneTxChangesMultiRid.java

License:Apache License

public boolean isDeleted(Document document, Object key, OIdentifiable value) {
    boolean match = false;
    List<String> strings = deleted.get(value.getIdentity().toString());
    if (strings != null) {
        MemoryIndex memoryIndex = new MemoryIndex();
        for (String string : strings) {
            Query q = engine.deleteQuery(string, value);
            memoryIndex.reset();
            for (IndexableField field : document.getFields()) {
                memoryIndex.addField(field.name(), field.stringValue(), new KeywordAnalyzer());
            }/*  ww  w . j av  a 2s  . co m*/
            match = match || (memoryIndex.search(q) > 0.0f);
        }
        return match;
    }
    return match;
}

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