ai.grakn.graql.internal.parser

Class QueryParserImpl

java.lang.Object

ai.grakn.graql.internal.parser.QueryParserImpl

All Implemented Interfaces:

QueryParser

public class QueryParserImpl
extends Object
implements QueryParser

Default implementation of QueryParser

Author:

Felix Chapman

Field Summary

Fields

Modifier and Type	Field and Description
static com.google.common.collect.ImmutableBiMap<String,AttributeType.DataType>	DATA_TYPES

Method Summary

Modifier and Type	Method and Description
static QueryParser	create(QueryBuilder queryBuilder) Create a query parser with the specified graph
void	defineAllVars(boolean defineAllVars)
<T extends Query<?>> java.util.stream.Stream<T>	parseList(Reader reader)
<T extends Query<?>> java.util.stream.Stream<T>	parseList(String queryString)
Pattern	parsePattern(String patternString)
List<Pattern>	parsePatterns(String patternsString)
<T extends Query<?>> T	parseQuery(String queryString)
<T extends Query<?>> java.util.stream.Stream<T>	parseTemplate(String template, Map<String,Object> data)
void	registerAggregate(String name, java.util.function.Function<List<Object>,Aggregate> aggregateMethod)

Methods inherited from class java.lang.Object

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

Field Detail

DATA_TYPES

public static final com.google.common.collect.ImmutableBiMap<String,AttributeType.DataType> DATA_TYPES

Method Detail

create

public static QueryParser create(QueryBuilder queryBuilder)

Create a query parser with the specified graph

Parameters:

queryBuilder - the QueryBuilderImpl to operate the query on

Returns:

a query parser that operates with the specified graph

registerAggregate

public void registerAggregate(String name,
                              java.util.function.Function<List<Object>,Aggregate> aggregateMethod)

Specified by:

registerAggregate in interface QueryParser

defineAllVars

public void defineAllVars(boolean defineAllVars)

Specified by:

defineAllVars in interface QueryParser

parseQuery

public <T extends Query<?>> T parseQuery(String queryString)

Specified by:

parseQuery in interface QueryParser

parseList

public <T extends Query<?>> java.util.stream.Stream<T> parseList(Reader reader)

Specified by:

parseList in interface QueryParser

Parameters:

reader - a reader representing several queries

Returns:

a list of queries

parseList

public <T extends Query<?>> java.util.stream.Stream<T> parseList(String queryString)

Specified by:

parseList in interface QueryParser

parsePatterns

public List<Pattern> parsePatterns(String patternsString)

Specified by:

parsePatterns in interface QueryParser

parsePattern

public Pattern parsePattern(String patternString)

Specified by:

parsePattern in interface QueryParser

parseTemplate

public <T extends Query<?>> java.util.stream.Stream<T> parseTemplate(String template,
                                                                     Map<String,Object> data)

Specified by:

parseTemplate in interface QueryParser