ai.grakn.graql

Interface Pattern

All Known Subinterfaces:

Conjunction<T>, Disjunction<T>, PatternAdmin, Var, VarPattern, VarPatternAdmin

All Known Implementing Classes:

AbstractPattern, AbstractVarPattern

public interface Pattern

A pattern describing a subgraph.

A Pattern can describe an entire graph, or just a single concept.

For example, var("x").isa("movie") is a pattern representing things that are movies.

A pattern can also be a conjunction: and(var("x").isa("movie"), var("x").value("Titanic")), or a disjunction: or(var("x").isa("movie"), var("x").isa("tv-show")). These can be used to combine other patterns together into larger patterns.

Author:

Felix Chapman

Method Summary

Modifier and Type	Method and Description
PatternAdmin	admin()
Pattern	and(Pattern pattern) Join patterns in a conjunction
Pattern	or(Pattern pattern) Join patterns in a disjunction

Method Detail

admin

@CheckReturnValue
PatternAdmin admin()

Returns:

an Admin class that allows inspecting or manipulating this pattern

and

@CheckReturnValue
Pattern and(Pattern pattern)

Join patterns in a conjunction

or

@CheckReturnValue
Pattern or(Pattern pattern)

Join patterns in a disjunction