Examples with Relation com.baidu.hugegraph.backend.query.Condition.Relation used on opensource projects

Example 11 with Relation

use of com.baidu.hugegraph.backend.query.Condition.Relation in project incubator-hugegraph by apache.

the class GraphIndexTransaction method matchRangeOrSearchIndexLabels.

private static Set<IndexLabel> matchRangeOrSearchIndexLabels(ConditionQuery query, Set<IndexLabel> indexLabels) {
    Set<IndexLabel> matchedIndexLabels = InsertionOrderUtil.newSet();
    for (Condition.Relation relation : query.userpropRelations()) {
        if (!relation.relation().isRangeType() && !relation.relation().isSearchType()) {
            continue;
        }
        Id key = (Id) relation.key();
        boolean matched = false;
        for (IndexLabel indexLabel : indexLabels) {
            if (indexLabel.indexType().isRange() || indexLabel.indexType().isSearch()) {
                if (indexLabel.indexField().equals(key)) {
                    matched = true;
                    matchedIndexLabels.add(indexLabel);
                    break;
                }
            }
        }
        if (!matched) {
            return ImmutableSet.of();
        }
    }
    return matchedIndexLabels;
}

Example 12 with Relation

use of com.baidu.hugegraph.backend.query.Condition.Relation in project incubator-hugegraph by apache.

the class CassandraTable method condition2Cql.

protected Clause condition2Cql(Condition condition) {
    switch(condition.type()) {
        case AND:
            Condition.And and = (Condition.And) condition;
            Clause left = condition2Cql(and.left());
            Clause right = condition2Cql(and.right());
            return Clauses.and(left, right);
        case OR:
            throw new BackendException("Not support OR currently");
        case RELATION:
            Condition.Relation r = (Condition.Relation) condition;
            return relation2Cql(r);
        default:
            final String msg = "Unsupported condition: " + condition;
            throw new AssertionError(msg);
    }
}

Example 13 with Relation

use of com.baidu.hugegraph.backend.query.Condition.Relation in project incubator-hugegraph by apache.

the class ConditionQuery method userpropConditions.

public List<Condition> userpropConditions(Id key) {
    this.checkFlattened();
    List<Condition> conditions = new ArrayList<>();
    for (Condition condition : this.conditions) {
        Relation relation = (Relation) condition;
        if (relation.key().equals(key)) {
            conditions.add(relation);
        }
    }
    return conditions;
}

Example 14 with Relation

use of com.baidu.hugegraph.backend.query.Condition.Relation in project incubator-hugegraph by apache.

the class ConditionQuery method syspropConditions.

public List<Condition> syspropConditions(HugeKeys key) {
    this.checkFlattened();
    List<Condition> conditions = new ArrayList<>();
    for (Condition condition : this.conditions) {
        Relation relation = (Relation) condition;
        if (relation.key().equals(key)) {
            conditions.add(relation);
        }
    }
    return conditions;
}

Example 15 with Relation

use of com.baidu.hugegraph.backend.query.Condition.Relation in project incubator-hugegraph by apache.

the class ConditionQuery method mayHasDupKeys.

public boolean mayHasDupKeys(Set<HugeKeys> keys) {
    Map<HugeKeys, Integer> keyCounts = new HashMap<>();
    for (Condition condition : this.conditions) {
        if (!condition.isRelation()) {
            // Assume may exist duplicate keys when has nested conditions
            return true;
        }
        Relation relation = (Relation) condition;
        if (keys.contains(relation.key())) {
            int keyCount = keyCounts.getOrDefault(relation.key(), 0);
            if (++keyCount > 1) {
                return true;
            }
            keyCounts.put((HugeKeys) relation.key(), keyCount);
        }
    }
    return false;
}