Java Code Examples for com.thinkaurelius.titan.core.Cardinality#SINGLE

The following examples show how to use com.thinkaurelius.titan.core.Cardinality#SINGLE . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: Titan1Graph.java    From incubator-atlas with Apache License 2.0 6 votes vote down vote up 
public Titan1Graph() {
    //determine multi-properties once at startup
    TitanManagement mgmt = null;
    try {
        mgmt = Titan1GraphDatabase.getGraphInstance().openManagement();
        Iterable<PropertyKey> keys = mgmt.getRelationTypes(PropertyKey.class);
        multiProperties = new HashSet<>();
        for (PropertyKey key : keys) {
            if (key.cardinality() != Cardinality.SINGLE) {
                multiProperties.add(key.name());
            }
        }
    } finally {
        if (mgmt != null) {
            mgmt.rollback();
        }
    }
}
Example 2
Source File: Titan0Graph.java    From incubator-atlas with Apache License 2.0 6 votes vote down vote up 
public Titan0Graph() {
    //determine multi-properties once at startup
    TitanManagement mgmt = null;
    try {
        mgmt = Titan0GraphDatabase.getGraphInstance().getManagementSystem();
        Iterable<PropertyKey> keys = mgmt.getRelationTypes(PropertyKey.class);
        multiProperties = Collections.synchronizedSet(new HashSet<String>());
        for(PropertyKey key : keys) {
            if (key.getCardinality() != Cardinality.SINGLE) {
                multiProperties.add(key.getName());
            }
        }
    } finally {
        if (mgmt != null) {
            mgmt.rollback();
        }
    }
}
Example 3
Source File: LuceneIndex.java    From titan1withtp3.1 with Apache License 2.0 5 votes vote down vote up 
@Override
public boolean supports(KeyInformation information, TitanPredicate titanPredicate) {
    if (information.getCardinality()!= Cardinality.SINGLE) return false;
    Class<?> dataType = information.getDataType();
    Mapping mapping = Mapping.getMapping(information);
    if (mapping!=Mapping.DEFAULT && !AttributeUtil.isString(dataType)) return false;

    if (Number.class.isAssignableFrom(dataType)) {
        if (titanPredicate instanceof Cmp) return true;
    } else if (dataType == Geoshape.class) {
        return titanPredicate == Geo.WITHIN;
    } else if (AttributeUtil.isString(dataType)) {
        switch(mapping) {
            case DEFAULT:
            case TEXT:
                return titanPredicate == Text.CONTAINS || titanPredicate == Text.CONTAINS_PREFIX; // || titanPredicate == Text.CONTAINS_REGEX;
            case STRING:
                return titanPredicate == Cmp.EQUAL || titanPredicate==Cmp.NOT_EQUAL || titanPredicate==Text.PREFIX || titanPredicate==Text.REGEX;
        }
    } else if (dataType == Date.class || dataType == Instant.class) {
        if (titanPredicate instanceof Cmp) return true;
    } else if (dataType == Boolean.class) {
        return titanPredicate == Cmp.EQUAL || titanPredicate == Cmp.NOT_EQUAL;
    } else if (dataType == UUID.class) {
        return titanPredicate == Cmp.EQUAL || titanPredicate == Cmp.NOT_EQUAL;
    }
    return false;
}
Example 4
Source File: LuceneIndex.java    From titan1withtp3.1 with Apache License 2.0 5 votes vote down vote up 
@Override
public boolean supports(KeyInformation information) {
    if (information.getCardinality()!= Cardinality.SINGLE) return false;
    Class<?> dataType = information.getDataType();
    Mapping mapping = Mapping.getMapping(information);
    if (Number.class.isAssignableFrom(dataType) || dataType == Geoshape.class || dataType == Date.class || dataType == Instant.class || dataType == Boolean.class || dataType == UUID.class) {
        if (mapping==Mapping.DEFAULT) return true;
    } else if (AttributeUtil.isString(dataType)) {
        if (mapping==Mapping.DEFAULT || mapping==Mapping.STRING || mapping==Mapping.TEXT) return true;
    }
    return false;
}
Example 5
Source File: ManagementSystem.java    From titan1withtp3.1 with Apache License 2.0 5 votes vote down vote up 
private TitanGraphIndex createCompositeIndex(String indexName, ElementCategory elementCategory, boolean unique, TitanSchemaType constraint, PropertyKey... keys) {
    checkIndexName(indexName);
    Preconditions.checkArgument(keys != null && keys.length > 0, "Need to provide keys to index [%s]", indexName);
    Preconditions.checkArgument(!unique || elementCategory == ElementCategory.VERTEX, "Unique indexes can only be created on vertices [%s]", indexName);
    boolean allSingleKeys = true;
    boolean oneNewKey = false;
    for (PropertyKey key : keys) {
        Preconditions.checkArgument(key != null && key instanceof PropertyKeyVertex, "Need to provide valid keys: %s", key);
        if (key.cardinality() != Cardinality.SINGLE) allSingleKeys = false;
        if (key.isNew()) oneNewKey = true;
        else updatedTypes.add((PropertyKeyVertex) key);
    }

    Cardinality indexCardinality;
    if (unique) indexCardinality = Cardinality.SINGLE;
    else indexCardinality = (allSingleKeys ? Cardinality.SET : Cardinality.LIST);

    TypeDefinitionMap def = new TypeDefinitionMap();
    def.setValue(TypeDefinitionCategory.INTERNAL_INDEX, true);
    def.setValue(TypeDefinitionCategory.ELEMENT_CATEGORY, elementCategory);
    def.setValue(TypeDefinitionCategory.BACKING_INDEX, Token.INTERNAL_INDEX_NAME);
    def.setValue(TypeDefinitionCategory.INDEXSTORE_NAME, indexName);
    def.setValue(TypeDefinitionCategory.INDEX_CARDINALITY, indexCardinality);
    def.setValue(TypeDefinitionCategory.STATUS, oneNewKey ? SchemaStatus.ENABLED : SchemaStatus.INSTALLED);
    TitanSchemaVertex indexVertex = transaction.makeSchemaVertex(TitanSchemaCategory.GRAPHINDEX, indexName, def);
    for (int i = 0; i < keys.length; i++) {
        Parameter[] paras = {ParameterType.INDEX_POSITION.getParameter(i)};
        addSchemaEdge(indexVertex, keys[i], TypeDefinitionCategory.INDEX_FIELD, paras);
    }

    Preconditions.checkArgument(constraint == null || (elementCategory.isValidConstraint(constraint) && constraint instanceof TitanSchemaVertex));
    if (constraint != null) {
        addSchemaEdge(indexVertex, (TitanSchemaVertex) constraint, TypeDefinitionCategory.INDEX_SCHEMA_CONSTRAINT, null);
    }
    updateSchemaVertex(indexVertex);
    TitanGraphIndexWrapper index = new TitanGraphIndexWrapper(indexVertex.asIndexType());
    if (!oneNewKey) updateIndex(index, SchemaAction.REGISTER_INDEX);
    return index;
}
Example 6
Source File: HasStepFolder.java    From titan1withtp3.1 with Apache License 2.0 5 votes vote down vote up 
public static boolean validTitanOrder(OrderGlobalStep ostep, Traversal rootTraversal,
                                      boolean isVertexOrder) {
    for (Comparator comp : (List<Comparator>) ostep.getComparators()) {
        if (!(comp instanceof ElementValueComparator)) return false;
        ElementValueComparator evc = (ElementValueComparator) comp;
        if (!(evc.getValueComparator() instanceof Order)) return false;

        TitanTransaction tx = TitanTraversalUtil.getTx(rootTraversal.asAdmin());
        String key = evc.getPropertyKey();
        PropertyKey pkey = tx.getPropertyKey(key);
        if (pkey == null || !(Comparable.class.isAssignableFrom(pkey.dataType()))) return false;
        if (isVertexOrder && pkey.cardinality() != Cardinality.SINGLE) return false;
    }
    return true;
}
Example 7
Source File: SolrIndex.java    From titan1withtp3.1 with Apache License 2.0 5 votes vote down vote up 
@Override
    public boolean supports(KeyInformation information, TitanPredicate titanPredicate) {
        Class<?> dataType = information.getDataType();
        Mapping mapping = Mapping.getMapping(information);
        if (mapping!=Mapping.DEFAULT && !AttributeUtil.isString(dataType)) return false;

        if(information.getCardinality() != Cardinality.SINGLE) {
            return false;
        }

        if (Number.class.isAssignableFrom(dataType)) {
            return titanPredicate instanceof Cmp;
        } else if (dataType == Geoshape.class) {
            return titanPredicate == Geo.WITHIN;
        } else if (AttributeUtil.isString(dataType)) {
            switch(mapping) {
                case DEFAULT:
                case TEXT:
                    return titanPredicate == Text.CONTAINS || titanPredicate == Text.CONTAINS_PREFIX || titanPredicate == Text.CONTAINS_REGEX;
                case STRING:
                    return titanPredicate == Cmp.EQUAL || titanPredicate==Cmp.NOT_EQUAL || titanPredicate==Text.REGEX || titanPredicate==Text.PREFIX;
//                case TEXTSTRING:
//                    return (titanPredicate instanceof Text) || titanPredicate == Cmp.EQUAL || titanPredicate==Cmp.NOT_EQUAL;
            }
        } else if (dataType == Date.class || dataType == Instant.class) {
            if (titanPredicate instanceof Cmp) return true;
        } else if (dataType == Boolean.class) {
            return titanPredicate == Cmp.EQUAL || titanPredicate == Cmp.NOT_EQUAL;
        } else if (dataType == UUID.class) {
            return titanPredicate == Cmp.EQUAL || titanPredicate==Cmp.NOT_EQUAL;
        }
        return false;
    }
Example 8
Source File: SolrIndex.java    From titan1withtp3.1 with Apache License 2.0 5 votes vote down vote up 
@Override
public boolean supports(KeyInformation information) {
    if(information.getCardinality() != Cardinality.SINGLE) {
        return false;
    }
    Class<?> dataType = information.getDataType();
    Mapping mapping = Mapping.getMapping(information);
    if (Number.class.isAssignableFrom(dataType) || dataType == Geoshape.class || dataType == Date.class || dataType == Instant.class || dataType == Boolean.class || dataType == UUID.class) {
        if (mapping==Mapping.DEFAULT) return true;
    } else if (AttributeUtil.isString(dataType)) {
        if (mapping==Mapping.DEFAULT || mapping==Mapping.TEXT || mapping==Mapping.STRING) return true;
    }
    return false;
}
Example 9
Source File: TitanObjectFactory.java    From incubator-atlas with Apache License 2.0 5 votes vote down vote up 
/**
 * Converts a Multiplicity to a Cardinality.
 *
 * @param multiplicity
 * @return
 */
public static Cardinality createCardinality(AtlasCardinality cardinality) {
    switch(cardinality) {

    case SINGLE:
        return Cardinality.SINGLE;
    case LIST:
        return Cardinality.LIST;
    case SET:
        return Cardinality.SET;
    default:
        throw new IllegalStateException("Unrecognized cardinality: " + cardinality);
    }
}
Example 10
Source File: GraphDbObjectFactory.java    From incubator-atlas with Apache License 2.0 5 votes vote down vote up 
/**
 * Converts a Multiplicity to a Cardinality.
 *
 * @param cardinality
 * @return
 */
public static AtlasCardinality createCardinality(Cardinality cardinality) {

    if (cardinality == Cardinality.SINGLE) {
        return AtlasCardinality.SINGLE;
    } else if (cardinality == Cardinality.LIST) {
        return AtlasCardinality.LIST;
    }
    return AtlasCardinality.SET;
}
Example 11
Source File: TitanObjectFactory.java    From incubator-atlas with Apache License 2.0 5 votes vote down vote up 
/**
 * Converts a Multiplicity to a Cardinality.
 *
 * @param multiplicity
 * @return
 */
public static Cardinality createCardinality(AtlasCardinality cardinality) {
    switch(cardinality) {

    case SINGLE:
        return Cardinality.SINGLE;
    case LIST:
        return Cardinality.LIST;
    case SET:
        return Cardinality.SET;
    default:
        throw new IllegalStateException("Unrecognized cardinality: " + cardinality);
    }
}
Example 12
Source File: GraphDbObjectFactory.java    From incubator-atlas with Apache License 2.0 5 votes vote down vote up 
/**
 * Converts a Multiplicity to a Cardinality.
 *
 * @param cardinality
 * @return
 */
public static AtlasCardinality createCardinality(Cardinality cardinality) {

    if (cardinality == Cardinality.SINGLE) {
        return AtlasCardinality.SINGLE;
    } else if (cardinality == Cardinality.LIST) {
        return AtlasCardinality.LIST;
    }
    return AtlasCardinality.SET;
}
Example 13
Source File: TitanGraphIndexWrapper.java    From titan1withtp3.1 with Apache License 2.0 4 votes vote down vote up 
@Override
public boolean isUnique() {
    if (index.isMixedIndex()) return false;
    return ((CompositeIndexType)index).getCardinality()== Cardinality.SINGLE;
}
Example 14
Source File: ImplicitKey.java    From titan1withtp3.1 with Apache License 2.0 4 votes vote down vote up 
@Override
public Cardinality cardinality() {
    return Cardinality.SINGLE;
}