Java Code Examples for com.thinkaurelius.titan.core.PropertyKey#name()

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Example 1
Source File: ManagementSystem.java    From titan1withtp3.1 with Apache License 2.0 5 votes vote down vote up 
@Override
public void addIndexKey(final TitanGraphIndex index, final PropertyKey key, Parameter... parameters) {
    Preconditions.checkArgument(index != null && key != null && index instanceof TitanGraphIndexWrapper
            && !(key instanceof BaseKey), "Need to provide valid index and key");
    if (parameters == null) parameters = new Parameter[0];
    IndexType indexType = ((TitanGraphIndexWrapper) index).getBaseIndex();
    Preconditions.checkArgument(indexType instanceof MixedIndexType, "Can only add keys to an external index, not %s", index.name());
    Preconditions.checkArgument(indexType instanceof IndexTypeWrapper && key instanceof TitanSchemaVertex
            && ((IndexTypeWrapper) indexType).getSchemaBase() instanceof TitanSchemaVertex);

    TitanSchemaVertex indexVertex = (TitanSchemaVertex) ((IndexTypeWrapper) indexType).getSchemaBase();

    for (IndexField field : indexType.getFieldKeys())
        Preconditions.checkArgument(!field.getFieldKey().equals(key), "Key [%s] has already been added to index %s", key.name(), index.name());

    //Assemble parameters
    boolean addMappingParameter = !ParameterType.MAPPED_NAME.hasParameter(parameters);
    Parameter[] extendedParas = new Parameter[parameters.length + 1 + (addMappingParameter ? 1 : 0)];
    System.arraycopy(parameters, 0, extendedParas, 0, parameters.length);
    int arrPosition = parameters.length;
    if (addMappingParameter) extendedParas[arrPosition++] = ParameterType.MAPPED_NAME.getParameter(
            graph.getIndexSerializer().getDefaultFieldName(key, parameters, indexType.getBackingIndexName()));
    extendedParas[arrPosition++] = ParameterType.STATUS.getParameter(key.isNew() ? SchemaStatus.ENABLED : SchemaStatus.INSTALLED);

    addSchemaEdge(indexVertex, key, TypeDefinitionCategory.INDEX_FIELD, extendedParas);
    updateSchemaVertex(indexVertex);
    indexType.resetCache();
    //Check to see if the index supports this
    if (!graph.getIndexSerializer().supports((MixedIndexType) indexType, ParameterIndexField.of(key, parameters))) {
        throw new TitanException("Could not register new index field '" + key.name() + "' with index backend as the data type, cardinality or parameter combination is not supported.");
    }

    try {
        IndexSerializer.register((MixedIndexType) indexType, key, transaction.getTxHandle());
    } catch (BackendException e) {
        throw new TitanException("Could not register new index field with index backend", e);
    }
    if (!indexVertex.isNew()) updatedTypes.add(indexVertex);
    if (!key.isNew()) updateIndex(index, SchemaAction.REGISTER_INDEX);
}
Example 2
Source File: PropertyKeyDefinition.java    From titan1withtp3.1 with Apache License 2.0 4 votes vote down vote up 
public PropertyKeyDefinition(PropertyKey key) {
    this(key.name(),key.longId(),key.cardinality(),key.dataType());
}