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Liquigraph 2.0.0 with Neo4j 3.x in embedded and file mode (spoiler alert: it won't work)
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| <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/xsd/maven-4.0.0.xsd"> | |
| <modelVersion>4.0.0</modelVersion> | |
| <groupId>net.biville.florent</groupId> | |
| <artifactId>test-liquigraph-neo4j3-liquigraph2</artifactId> | |
| <version>1.0-SNAPSHOT</version> | |
| <packaging>jar</packaging> | |
| <name>test-liquigraph-neo4j3-liquigraph2</name> | |
| <url>http://maven.apache.org</url> | |
| <properties> | |
| <encoding>UTF-8</encoding> | |
| <java.version>1.8</java.version> | |
| <project.build.sourceEncoding>${encoding}</project.build.sourceEncoding> | |
| <project.reporting.outputEncoding>${encoding}</project.reporting.outputEncoding> | |
| <maven.compiler.source>${java.version}</maven.compiler.source> | |
| <maven.compiler.target>${java.version}</maven.compiler.target> | |
| <neo4j.version>3.0.6</neo4j.version> | |
| </properties> | |
| <dependencies> | |
| <dependency> | |
| <groupId>org.neo4j</groupId> | |
| <artifactId>neo4j</artifactId> | |
| <version>${neo4j.version}</version> | |
| </dependency> | |
| <dependency> | |
| <groupId>org.liquigraph</groupId> | |
| <artifactId>liquigraph-core</artifactId> | |
| <version>2.0.0</version> | |
| </dependency> | |
| <!-- in memory support --> | |
| <dependency> | |
| <groupId>org.neo4j</groupId> | |
| <artifactId>neo4j-kernel</artifactId> | |
| <version>${neo4j.version}</version> | |
| <type>test-jar</type> | |
| </dependency> | |
| <dependency> | |
| <groupId>org.neo4j</groupId> | |
| <artifactId>neo4j-io</artifactId> | |
| <version>${neo4j.version}</version> | |
| <type>test-jar</type> | |
| </dependency> | |
| </dependencies> | |
| </project> |
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| package net.biville.florent; | |
| import org.neo4j.graphdb.GraphDatabaseService; | |
| import org.neo4j.graphdb.ResourceIterator; | |
| import org.neo4j.graphdb.Result; | |
| class GraphQueries { | |
| private final GraphDatabaseService graphDb; | |
| public GraphQueries(GraphDatabaseService graphDb) { | |
| this.graphDb = graphDb; | |
| } | |
| public void countNodes(String label) { | |
| try (Result result = graphDb.execute(String.format("MATCH (n:%s) RETURN COUNT(n) AS count", label)); | |
| ResourceIterator<Long> results = result.columnAs("count")) { | |
| results.forEachRemaining((c) -> System.out.println(String.format("Number of nodes with label %s: %d", label, c))); | |
| } | |
| } | |
| } |
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| package net.biville.florent; | |
| import org.liquigraph.core.api.Liquigraph; | |
| import org.liquigraph.core.configuration.ConfigurationBuilder; | |
| import org.neo4j.graphdb.GraphDatabaseService; | |
| import org.neo4j.graphdb.factory.GraphDatabaseFactory; | |
| import java.io.IOException; | |
| import java.nio.file.Files; | |
| import java.nio.file.Path; | |
| public class FileDatabase { | |
| public static void main(String[] args) throws Exception { | |
| Path directory = Files.createTempDirectory("neo"); | |
| GraphDatabaseService graphDB = createEmbeddedDatabase(directory); | |
| GraphQueries queries = new GraphQueries(graphDB); | |
| queries.countNodes("Sentence"); | |
| new Liquigraph().runMigrations( | |
| new ConfigurationBuilder() | |
| .withUri("jdbc:neo4j:file:" + directory.toFile().getAbsolutePath()) | |
| .withMasterChangelogLocation("changelog.xml") | |
| .withRunMode() | |
| .build()); | |
| queries.countNodes("Sentence"); | |
| } | |
| private static GraphDatabaseService createEmbeddedDatabase(Path directory) throws IOException { | |
| return new GraphDatabaseFactory().newEmbeddedDatabase(directory.toFile()); | |
| } | |
| } |
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| Exception in thread "main" java.lang.NoSuchMethodError: org.neo4j.graphdb.factory.GraphDatabaseFactory.newEmbeddedDatabase(Ljava/lang/String;)Lorg/neo4j/graphdb/GraphDatabaseService; | |
| at org.neo4j.jdbc.embedded.EmbeddedDatabases$Type$3$1.newDatabase(EmbeddedDatabases.java:67) | |
| at org.neo4j.graphdb.factory.GraphDatabaseBuilder.newGraphDatabase(GraphDatabaseBuilder.java:183) | |
| at org.neo4j.jdbc.embedded.EmbeddedDatabases$Type$3.create(EmbeddedDatabases.java:76) | |
| at org.neo4j.jdbc.embedded.EmbeddedDatabases.createDatabase(EmbeddedDatabases.java:113) | |
| at org.neo4j.jdbc.embedded.EmbeddedDatabases.createExecutor(EmbeddedDatabases.java:143) | |
| at org.neo4j.jdbc.Driver.createExecutor(Driver.java:161) | |
| at org.neo4j.jdbc.Neo4jConnection.createExecutor(Neo4jConnection.java:141) | |
| at org.neo4j.jdbc.Neo4jConnection.<init>(Neo4jConnection.java:74) | |
| at org.neo4j.jdbc.Connections$4.doCreate(Connections.java:82) | |
| at org.neo4j.jdbc.Connections.create(Connections.java:97) | |
| at org.neo4j.jdbc.Driver.connect(Driver.java:73) | |
| at org.neo4j.jdbc.Driver.connect(Driver.java:37) | |
| at java.sql.DriverManager.getConnection(DriverManager.java:664) | |
| at java.sql.DriverManager.getConnection(DriverManager.java:270) | |
| at org.liquigraph.core.configuration.ConnectionConfigurationByUri$UriToConnectionFunction.apply(ConnectionConfigurationByUri.java:80) | |
| at org.liquigraph.core.configuration.ConnectionConfigurationByUri$UriToConnectionFunction.apply(ConnectionConfigurationByUri.java:74) | |
| at org.liquigraph.core.configuration.ConnectionConfigurationByUri.get(ConnectionConfigurationByUri.java:57) | |
| at org.liquigraph.core.configuration.ConnectionConfigurationByUri.get(ConnectionConfigurationByUri.java:29) | |
| at org.liquigraph.core.io.GraphJdbcConnector.connect(GraphJdbcConnector.java:37) | |
| at org.liquigraph.core.api.MigrationRunner$ConnectionSupplier.get(MigrationRunner.java:125) | |
| at org.liquigraph.core.api.MigrationRunner$ConnectionSupplier.get(MigrationRunner.java:116) | |
| at org.liquigraph.core.api.MigrationRunner.runMigrations(MigrationRunner.java:70) | |
| at org.liquigraph.core.api.Liquigraph.runMigrations(Liquigraph.java:63) | |
| at net.biville.florent.FileDatabase.main(FileDatabase.java:20) | |
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | |
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) | |
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) | |
| at java.lang.reflect.Method.invoke(Method.java:498) | |
| at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) |
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| package net.biville.florent; | |
| import org.liquigraph.core.api.Liquigraph; | |
| import org.liquigraph.core.configuration.ConfigurationBuilder; | |
| import org.neo4j.graphdb.GraphDatabaseService; | |
| import org.neo4j.kernel.impl.factory.GraphDatabaseFacade; | |
| import org.neo4j.test.TestGraphDatabaseFactory; | |
| public class InMemoryDatabase { | |
| public static void main(String[] args) throws Exception { | |
| GraphDatabaseService graphDB = createInMemoryDatabase(); | |
| GraphQueries queries = new GraphQueries(graphDB); | |
| queries.countNodes("Sentence"); | |
| new Liquigraph().runMigrations( | |
| new ConfigurationBuilder() | |
| .withUri("jdbc:neo4j:mem:" + ((GraphDatabaseFacade) graphDB).getStoreDir()) | |
| .withMasterChangelogLocation("changelog.xml") | |
| .withRunMode() | |
| .build()); | |
| queries.countNodes("Sentence"); | |
| } | |
| private static GraphDatabaseService createInMemoryDatabase() { | |
| return new TestGraphDatabaseFactory().newImpermanentDatabase(); | |
| } | |
| } |
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| Exception in thread "main" java.lang.NoClassDefFoundError: org/neo4j/cypher/javacompat/ExecutionEngine | |
| at org.neo4j.jdbc.embedded.EmbeddedQueryExecutor.<init>(EmbeddedQueryExecutor.java:52) | |
| at org.neo4j.jdbc.embedded.EmbeddedDatabases.createExecutor(EmbeddedDatabases.java:144) | |
| at org.neo4j.jdbc.Driver.createExecutor(Driver.java:161) | |
| at org.neo4j.jdbc.Neo4jConnection.createExecutor(Neo4jConnection.java:141) | |
| at org.neo4j.jdbc.Neo4jConnection.<init>(Neo4jConnection.java:74) | |
| at org.neo4j.jdbc.Connections$4.doCreate(Connections.java:82) | |
| at org.neo4j.jdbc.Connections.create(Connections.java:97) | |
| at org.neo4j.jdbc.Driver.connect(Driver.java:73) | |
| at org.neo4j.jdbc.Driver.connect(Driver.java:37) | |
| at java.sql.DriverManager.getConnection(DriverManager.java:664) | |
| at java.sql.DriverManager.getConnection(DriverManager.java:270) | |
| at org.liquigraph.core.configuration.ConnectionConfigurationByUri$UriToConnectionFunction.apply(ConnectionConfigurationByUri.java:80) | |
| at org.liquigraph.core.configuration.ConnectionConfigurationByUri$UriToConnectionFunction.apply(ConnectionConfigurationByUri.java:74) | |
| at org.liquigraph.core.configuration.ConnectionConfigurationByUri.get(ConnectionConfigurationByUri.java:57) | |
| at org.liquigraph.core.configuration.ConnectionConfigurationByUri.get(ConnectionConfigurationByUri.java:29) | |
| at org.liquigraph.core.io.GraphJdbcConnector.connect(GraphJdbcConnector.java:37) | |
| at org.liquigraph.core.api.MigrationRunner$ConnectionSupplier.get(MigrationRunner.java:125) | |
| at org.liquigraph.core.api.MigrationRunner$ConnectionSupplier.get(MigrationRunner.java:116) | |
| at org.liquigraph.core.api.MigrationRunner.runMigrations(MigrationRunner.java:70) | |
| at org.liquigraph.core.api.Liquigraph.runMigrations(Liquigraph.java:63) | |
| at net.biville.florent.InMemoryDatabase.main(InMemoryDatabase.java:16) | |
| at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | |
| at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) | |
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) | |
| at java.lang.reflect.Method.invoke(Method.java:498) | |
| at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) | |
| Caused by: java.lang.ClassNotFoundException: org.neo4j.cypher.javacompat.ExecutionEngine | |
| at java.net.URLClassLoader.findClass(URLClassLoader.java:381) | |
| at java.lang.ClassLoader.loadClass(ClassLoader.java:424) | |
| at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) | |
| at java.lang.ClassLoader.loadClass(ClassLoader.java:357) | |
| ... 26 more |
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