Examples with OIndexCursor com.orientechnologies.orient.core.index.OIndexCursor used on opensource projects

Example 51 with OIndexCursor

use of com.orientechnologies.orient.core.index.OIndexCursor in project orientdb by orientechnologies.

the class OQueryOperatorIs method executeIndexQuery.

@Override
public OIndexCursor executeIndexQuery(OCommandContext iContext, OIndex<?> index, List<Object> keyParams, boolean ascSortOrder) {
    final OIndexDefinition indexDefinition = index.getDefinition();
    final OIndexInternal<?> internalIndex = index.getInternal();
    OIndexCursor cursor;
    if (!internalIndex.canBeUsedInEqualityOperators())
        return null;
    if (indexDefinition.getParamCount() == 1) {
        final Object key;
        if (indexDefinition instanceof OIndexDefinitionMultiValue)
            key = ((OIndexDefinitionMultiValue) indexDefinition).createSingleValue(keyParams.get(0));
        else
            key = indexDefinition.createValue(keyParams);
        final Object indexResult;
        indexResult = index.get(key);
        if (indexResult == null || indexResult instanceof OIdentifiable)
            cursor = new OIndexCursorSingleValue((OIdentifiable) indexResult, key);
        else
            cursor = new OIndexCursorCollectionValue((Collection<OIdentifiable>) indexResult, key);
    } else {
        // in case of composite keys several items can be returned in case we perform search
        // using part of composite key stored in index
        final OCompositeIndexDefinition compositeIndexDefinition = (OCompositeIndexDefinition) indexDefinition;
        final Object keyOne = compositeIndexDefinition.createSingleValue(keyParams);
        final Object keyTwo = compositeIndexDefinition.createSingleValue(keyParams);
        if (internalIndex.hasRangeQuerySupport()) {
            cursor = index.iterateEntriesBetween(keyOne, true, keyTwo, true, ascSortOrder);
        } else {
            if (indexDefinition.getParamCount() == keyParams.size()) {
                final Object indexResult;
                indexResult = index.get(keyOne);
                if (indexResult == null || indexResult instanceof OIdentifiable)
                    cursor = new OIndexCursorSingleValue((OIdentifiable) indexResult, keyOne);
                else
                    cursor = new OIndexCursorCollectionValue((Collection<OIdentifiable>) indexResult, keyOne);
            } else
                return null;
        }
    }
    updateProfiler(iContext, index, keyParams, indexDefinition);
    return cursor;
}

Example 52 with OIndexCursor

use of com.orientechnologies.orient.core.index.OIndexCursor in project orientdb by orientechnologies.

the class OQueryOperatorMajor method executeIndexQuery.

@Override
public OIndexCursor executeIndexQuery(OCommandContext iContext, OIndex<?> index, List<Object> keyParams, boolean ascSortOrder) {
    final OIndexDefinition indexDefinition = index.getDefinition();
    OIndexCursor cursor;
    final OIndexInternal<?> internalIndex = index.getInternal();
    if (!internalIndex.canBeUsedInEqualityOperators() || !internalIndex.hasRangeQuerySupport())
        return null;
    if (indexDefinition.getParamCount() == 1) {
        final Object key;
        if (indexDefinition instanceof OIndexDefinitionMultiValue)
            key = ((OIndexDefinitionMultiValue) indexDefinition).createSingleValue(keyParams.get(0));
        else
            key = indexDefinition.createValue(keyParams);
        if (key == null)
            return null;
        cursor = index.iterateEntriesMajor(key, false, ascSortOrder);
    } else {
        // if we have situation like "field1 = 1 AND field2 > 2"
        // then we fetch collection which left not included boundary is the smallest composite key in the
        // index that contains keys with values field1=1 and field2=2 and which right included boundary
        // is the biggest composite key in the index that contains key with value field1=1.
        final OCompositeIndexDefinition compositeIndexDefinition = (OCompositeIndexDefinition) indexDefinition;
        final Object keyOne = compositeIndexDefinition.createSingleValue(keyParams);
        if (keyOne == null)
            return null;
        final Object keyTwo = compositeIndexDefinition.createSingleValue(keyParams.subList(0, keyParams.size() - 1));
        if (keyTwo == null)
            return null;
        cursor = index.iterateEntriesBetween(keyOne, false, keyTwo, true, ascSortOrder);
    }
    updateProfiler(iContext, index, keyParams, indexDefinition);
    return cursor;
}

Example 53 with OIndexCursor

use of com.orientechnologies.orient.core.index.OIndexCursor in project orientdb by orientechnologies.

the class OQueryOperatorMinorEquals method executeIndexQuery.

@Override
public OIndexCursor executeIndexQuery(OCommandContext iContext, OIndex<?> index, List<Object> keyParams, boolean ascSortOrder) {
    final OIndexDefinition indexDefinition = index.getDefinition();
    final OIndexInternal<?> internalIndex = index.getInternal();
    OIndexCursor cursor;
    if (!internalIndex.canBeUsedInEqualityOperators() || !internalIndex.hasRangeQuerySupport())
        return null;
    if (indexDefinition.getParamCount() == 1) {
        final Object key;
        if (indexDefinition instanceof OIndexDefinitionMultiValue)
            key = ((OIndexDefinitionMultiValue) indexDefinition).createSingleValue(keyParams.get(0));
        else
            key = indexDefinition.createValue(keyParams);
        if (key == null)
            return null;
        cursor = index.iterateEntriesMinor(key, true, ascSortOrder);
    } else {
        // if we have situation like "field1 = 1 AND field2 <= 2"
        // then we fetch collection which left included boundary is the smallest composite key in the
        // index that contains key with value field1=1 and which right not included boundary
        // is the biggest composite key in the index that contains key with value field1=1 and field2=2.
        final OCompositeIndexDefinition compositeIndexDefinition = (OCompositeIndexDefinition) indexDefinition;
        final Object keyOne = compositeIndexDefinition.createSingleValue(keyParams.subList(0, keyParams.size() - 1));
        if (keyOne == null)
            return null;
        final Object keyTwo = compositeIndexDefinition.createSingleValue(keyParams);
        if (keyTwo == null)
            return null;
        cursor = index.iterateEntriesBetween(keyOne, true, keyTwo, true, ascSortOrder);
    }
    updateProfiler(iContext, index, keyParams, indexDefinition);
    return cursor;
}

Example 54 with OIndexCursor

use of com.orientechnologies.orient.core.index.OIndexCursor in project orientdb by orientechnologies.

the class OQueryOperatorMajorEquals method executeIndexQuery.

@Override
public OIndexCursor executeIndexQuery(OCommandContext iContext, OIndex<?> index, List<Object> keyParams, boolean ascSortOrder) {
    final OIndexDefinition indexDefinition = index.getDefinition();
    OIndexCursor cursor;
    final OIndexInternal<?> internalIndex = index.getInternal();
    if (!internalIndex.canBeUsedInEqualityOperators() || !internalIndex.hasRangeQuerySupport())
        return null;
    if (indexDefinition.getParamCount() == 1) {
        final Object key;
        if (indexDefinition instanceof OIndexDefinitionMultiValue)
            key = ((OIndexDefinitionMultiValue) indexDefinition).createSingleValue(keyParams.get(0));
        else
            key = indexDefinition.createValue(keyParams);
        if (key == null)
            return null;
        cursor = index.iterateEntriesMajor(key, true, ascSortOrder);
    } else {
        // if we have situation like "field1 = 1 AND field2 >= 2"
        // then we fetch collection which left included boundary is the smallest composite key in the
        // index that contains keys with values field1=1 and field2=2 and which right included boundary
        // is the biggest composite key in the index that contains key with value field1=1.
        final OCompositeIndexDefinition compositeIndexDefinition = (OCompositeIndexDefinition) indexDefinition;
        final Object keyOne = compositeIndexDefinition.createSingleValue(keyParams);
        if (keyOne == null)
            return null;
        final Object keyTwo = compositeIndexDefinition.createSingleValue(keyParams.subList(0, keyParams.size() - 1));
        if (keyTwo == null)
            return null;
        cursor = index.iterateEntriesBetween(keyOne, true, keyTwo, true, ascSortOrder);
    }
    updateProfiler(iContext, index, keyParams, indexDefinition);
    return cursor;
}