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我試圖創建一個Titan圖形示例，但它給出了錯誤。對於TitanGraph類型，未定義makeType（）方法
我遇到的pom.xml如下：
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion
<groupId>com.titanobwebservices.services</groupId>
<artifactId>titanob-services</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>titanob-services Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>com.thinkaurelius.titan</groupId>
<artifactId>titan-core</artifactId>
<version>0.4.4</version>
</dependency>
<dependency>
<groupId>com.thinkaurelius.titan</groupId>
<artifactId>titan-berkeleyje</artifactId>
<version>0.4.4</version>
</dependency>
<dependency>
<groupId>com.thinkaurelius.titan</groupId>
<artifactId>titan-es</artifactId>
<version>0.4.4</version>
</dependency>
</dependencies>
<build>
<finalName>titanob-services</finalName>
</build>
</project>
GodOfGraphFactory.java如下：
package com.titanos.webservices;
import static com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration.INDEX_BACKEND_KEY;
import static com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration.STORAGE_DIRECTORY_KEY;
import java.io.File;
import org.apache.commons.configuration.BaseConfiguration;
import org.apache.commons.configuration.Configuration;
import com.thinkaurelius.titan.core.TitanFactory;
import com.thinkaurelius.titan.core.TitanGraph;
import com.thinkaurelius.titan.core.TitanKey;
import com.thinkaurelius.titan.core.attribute.Geoshape;
import com.thinkaurelius.titan.graphdb.configuration.GraphDatabaseConfiguration;
import com.tinkerpop.blueprints.Direction;
import com.tinkerpop.blueprints.Edge;
import com.tinkerpop.blueprints.Vertex;
import com.tinkerpop.blueprints.util.ElementHelper;
public class GraphOfTheGodsFactory {
public static final String INDEX_NAME = "search";
public static TitanGraph create(final String directory) {
BaseConfiguration config = new BaseConfiguration();
Configuration storage = config.subset(GraphDatabaseConfiguration.STORAGE_NAMESPACE);
// configuring local backend
storage.setProperty(GraphDatabaseConfiguration.STORAGE_BACKEND_KEY, "local");
storage.setProperty(GraphDatabaseConfiguration.STORAGE_DIRECTORY_KEY, directory);
// configuring elastic search index
Configuration index = storage.subset(GraphDatabaseConfiguration.INDEX_NAMESPACE).subset(INDEX_NAME);
index.setProperty(INDEX_BACKEND_KEY, "elasticsearch");
index.setProperty("local-mode", true);
index.setProperty("client-only", false);
index.setProperty(STORAGE_DIRECTORY_KEY, directory + File.separator + "es");
TitanGraph graph = TitanFactory.open(config);
GraphOfTheGodsFactory.load(graph);
return graph;
}
public static void load(final TitanGraph graph) {
graph.makeType().name("name").dataType(String.class).indexed(Vertex.class).unique(Direction.BOTH).makePropertyKey();
graph.makeType().name("age").dataType(Integer.class).indexed(INDEX_NAME, Vertex.class).unique(Direction.OUT).makePropertyKey();
graph.makeType().name("type").dataType(String.class).unique(Direction.OUT).makePropertyKey();
final TitanKey time = graph.makeType().name("time").dataType(Integer.class).unique(Direction.OUT).makePropertyKey();
final TitanKey reason = graph.makeType().name("reason").dataType(String.class).indexed(INDEX_NAME, Edge.class).unique(Direction.OUT).makePropertyKey();
graph.makeType().name("place").dataType(Geoshape.class).indexed(INDEX_NAME, Edge.class).unique(Direction.OUT).makePropertyKey();
graph.makeType().name("father").unique(Direction.OUT).makeEdgeLabel();
graph.makeType().name("mother").unique(Direction.OUT).makeEdgeLabel();
graph.makeType().name("battled").primaryKey(time).makeEdgeLabel();
graph.makeType().name("lives").signature(reason).makeEdgeLabel();
graph.makeType().name("pet").makeEdgeLabel();
graph.makeType().name("brother").makeEdgeLabel();
graph.commit();
// vertices
Vertex saturn = graph.addVertex(null);
saturn.setProperty("name", "saturn");
saturn.setProperty("age", 10000);
saturn.setProperty("type", "titan");
Vertex sky = graph.addVertex(null);
ElementHelper.setProperties(sky, "name", "sky", "type", "location");
Vertex sea = graph.addVertex(null);
ElementHelper.setProperties(sea, "name", "sea", "type", "location");
Vertex jupiter = graph.addVertex(null);
ElementHelper.setProperties(jupiter, "name", "jupiter", "age", 5000, "type", "god");
Vertex neptune = graph.addVertex(null);
ElementHelper.setProperties(neptune, "name", "neptune", "age", 4500, "type", "god");
Vertex hercules = graph.addVertex(null);
ElementHelper.setProperties(hercules, "name", "hercules", "age", 30, "type", "demigod");
Vertex alcmene = graph.addVertex(null);
ElementHelper.setProperties(alcmene, "name", "alcmene", "age", 45, "type", "human");
Vertex pluto = graph.addVertex(null);
ElementHelper.setProperties(pluto, "name", "pluto", "age", 4000, "type", "god");
Vertex nemean = graph.addVertex(null);
ElementHelper.setProperties(nemean, "name", "nemean", "type", "monster");
Vertex hydra = graph.addVertex(null);
ElementHelper.setProperties(hydra, "name", "hydra", "type", "monster");
Vertex cerberus = graph.addVertex(null);
ElementHelper.setProperties(cerberus, "name", "cerberus", "type", "monster");
Vertex tartarus = graph.addVertex(null);
ElementHelper.setProperties(tartarus, "name", "tartarus", "type", "location");
// edges
jupiter.addEdge("father", saturn);
jupiter.addEdge("lives", sky).setProperty("reason", "loves fresh breezes");
jupiter.addEdge("brother", neptune);
jupiter.addEdge("brother", pluto);
neptune.addEdge("lives", sea).setProperty("reason", "loves waves");
neptune.addEdge("brother", jupiter);
neptune.addEdge("brother", pluto);
hercules.addEdge("father", jupiter);
hercules.addEdge("mother", alcmene);
ElementHelper.setProperties(hercules.addEdge("battled", nemean), "time", 1, "place", Geoshape.point(38.1f, 23.7f));
ElementHelper.setProperties(hercules.addEdge("battled", hydra), "time", 2, "place", Geoshape.point(37.7f, 23.9f));
ElementHelper.setProperties(hercules.addEdge("battled", cerberus), "time", 12, "place", Geoshape.point(39f, 22f));
pluto.addEdge("brother", jupiter);
pluto.addEdge("brother", neptune);
pluto.addEdge("lives", tartarus).setProperty("reason", "no fear of death");
pluto.addEdge("pet", cerberus);
cerberus.addEdge("lives", tartarus);
// commit the transaction to disk
graph.commit();
}
}
但我發現了以下錯誤..
Exception in thread "main" java.lang.Error: Unresolved compilation problems: The method makeType() is undefined for the type TitanGraph
at com.titanos.webservices.GraphOfTheGodsFactory.load(GraphOfTheGodsFactory.java:52)
at com.titanos.webservices.GraphOfTheGodsFactory.create(GraphOfTheGodsFactory.java:46)
at com.titanos.webservices.exampletest.main(exampletest.java:13)
我附上了截圖。
我無法找到我在這個項目中缺少的依賴關係。