ai.grakn.graql.internal.query

Class ConceptBuilder

java.lang.Object

ai.grakn.graql.internal.query.ConceptBuilder

public class ConceptBuilder
extends Object

Class for building a Concept, by providing properties.

A VarProperty is responsible for inserting itself into the graph. However, some properties can only operate in combination. For example, to create a Attribute you need both an IsaProperty and a ValueProperty.

Therefore, these properties do not create the Concept themselves. instead they provide the necessary information to the ConceptBuilder, which will create the Concept at a later time:

     // Executor:
     ConceptBuilder builder = ConceptBuilder.of(executor, var);
     // IsaProperty:
     builder.isa(name);
     // ValueProperty:
     builder.value("Bob");
     // Executor:
     Concept concept = builder.build();
 

Author:

Felix Chapman

Method Summary

Modifier and Type	Method and Description
ConceptBuilder	dataType(AttributeType.DataType<?> dataType)
ConceptBuilder	id(ConceptId id)
ConceptBuilder	isa(Type type)
ConceptBuilder	label(Label label)
static void	setSuper(SchemaConcept subConcept, SchemaConcept superConcept) Make the second argument the super of the first argument
ConceptBuilder	sub(SchemaConcept superConcept)
ConceptBuilder	then(Pattern then)
ConceptBuilder	value(Object value)
ConceptBuilder	when(Pattern when)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

isa

public ConceptBuilder isa(Type type)

sub

public ConceptBuilder sub(SchemaConcept superConcept)

label

public ConceptBuilder label(Label label)

id

public ConceptBuilder id(ConceptId id)

value

public ConceptBuilder value(Object value)

dataType

public ConceptBuilder dataType(AttributeType.DataType<?> dataType)

when

public ConceptBuilder when(Pattern when)

then

public ConceptBuilder then(Pattern then)

setSuper

public static void setSuper(SchemaConcept subConcept,
                            SchemaConcept superConcept)

Make the second argument the super of the first argument

Throws:

GraqlQueryException - if the types are different, or setting the super to be a meta-type