Examples with ConstraintType org.neo4j.internal.schema.ConstraintType used on opensource projects

Example 1 with ConstraintType

use of org.neo4j.internal.schema.ConstraintType in project neo4j by neo4j.

the class ConstraintsProcedureUtil method prettyPrint.

static String prettyPrint(ConstraintDescriptor constraintDescriptor, TokenNameLookup tokenNameLookup) {
    SchemaDescriptor schema = constraintDescriptor.schema();
    int[] entityTokenIds = schema.getEntityTokenIds();
    if (entityTokenIds.length != 1) {
        throw new IllegalArgumentException("Cannot pretty-print multi-token constraints: " + constraintDescriptor.userDescription(tokenNameLookup));
    }
    String entityTypeName = schema.entityType() == EntityType.NODE ? tokenNameLookup.labelGetName(entityTokenIds[0]) : tokenNameLookup.relationshipTypeGetName(entityTokenIds[0]);
    entityTypeName = escapeLabelOrRelTyp(entityTypeName);
    String entityName = entityTypeName.toLowerCase();
    String properties = formatProperties(schema.getPropertyIds(), tokenNameLookup, entityName);
    ConstraintType type = constraintDescriptor.type();
    switch(type) {
        case EXISTS:
            switch(schema.entityType()) {
                case NODE:
                    return "CONSTRAINT ON ( " + entityName + ":" + entityTypeName + " ) ASSERT " + properties + " IS NOT NULL";
                case RELATIONSHIP:
                    return "CONSTRAINT ON ()-[ " + entityName + ":" + entityTypeName + " ]-() ASSERT " + properties + " IS NOT NULL";
                default:
                    throw new IllegalStateException("Unknown schema entity type: " + schema.entityType() + ".");
            }
        case UNIQUE:
            return "CONSTRAINT ON ( " + entityName + ":" + entityTypeName + " ) ASSERT " + properties + " IS UNIQUE";
        case UNIQUE_EXISTS:
            return "CONSTRAINT ON ( " + entityName + ":" + entityTypeName + " ) ASSERT " + properties + " IS NODE KEY";
        default:
            throw new IllegalStateException("Unknown constraint type: " + type + ".");
    }
}

Example 2 with ConstraintType

use of org.neo4j.internal.schema.ConstraintType in project neo4j by neo4j.

the class SchemaStore method schemaConstraintToMap.

private static void schemaConstraintToMap(ConstraintDescriptor rule, Map<String, Value> map) {
    // Rule
    putStringProperty(map, PROP_SCHEMA_RULE_TYPE, "CONSTRAINT");
    ConstraintType type = rule.type();
    switch(type) {
        case UNIQUE:
            putStringProperty(map, PROP_CONSTRAINT_RULE_TYPE, "UNIQUE");
            if (rule.asIndexBackedConstraint().hasOwnedIndexId()) {
                putLongProperty(map, PROP_OWNED_INDEX, rule.asIndexBackedConstraint().ownedIndexId());
            }
            break;
        case EXISTS:
            putStringProperty(map, PROP_CONSTRAINT_RULE_TYPE, "EXISTS");
            break;
        case UNIQUE_EXISTS:
            putStringProperty(map, PROP_CONSTRAINT_RULE_TYPE, "UNIQUE_EXISTS");
            if (rule.asIndexBackedConstraint().hasOwnedIndexId()) {
                putLongProperty(map, PROP_OWNED_INDEX, rule.asIndexBackedConstraint().ownedIndexId());
            }
            break;
        default:
            throw new UnsupportedOperationException("Unrecognized constraint type: " + type);
    }
}

Example 3 with ConstraintType

use of org.neo4j.internal.schema.ConstraintType in project neo4j by neo4j.

the class Operations method constraintDrop.

@Override
public void constraintDrop(SchemaDescriptor schema, ConstraintType type) throws SchemaKernelException {
    ktx.assertOpen();
    Iterator<ConstraintDescriptor> constraints = ktx.schemaRead().constraintsGetForSchema(schema);
    constraints = Iterators.filter(constraint -> constraint.type() == type, constraints);
    if (constraints.hasNext()) {
        ConstraintDescriptor constraint = constraints.next();
        if (!constraints.hasNext()) {
            constraintDrop(constraint);
        } else {
            String schemaDescription = schema.userDescription(token);
            String constraintDescription = constraints.next().userDescription(token);
            throw new DropConstraintFailureException(constraint, new IllegalArgumentException("More than one " + type + " constraint was found with the '" + schemaDescription + "' schema: " + constraintDescription + ", please drop constraint by name instead."));
        }
    } else {
        throw new DropConstraintFailureException(schema, new NoSuchConstraintException(schema, token));
    }
}