org.neo4j.graphdb.Node.setProperty()方法的使用及代码示例

x33g5p2x  于2022-01-24 转载在 其他  
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本文整理了Java中org.neo4j.graphdb.Node.setProperty()方法的一些代码示例，展示了Node.setProperty()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Node.setProperty()方法的具体详情如下：
包路径：org.neo4j.graphdb.Node
类名称：Node
方法名：setProperty

Node.setProperty介绍

暂无

代码示例

代码示例来源：origin: neo4j/neo4j

  1. private void createNonUniqueNodes()
  2. {
  3.   try ( Transaction tx = db.beginTx() )
  4.   {
  5.     Node originNode = db.createNode( LABEL );
  6.     originNode.setProperty( KEY, point1 );
  7.     Node centerNode = db.createNode( LABEL );
  8.     centerNode.setProperty( KEY, point1 );
  9.     tx.success();
  10.   }
  11. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testNodeWithDoubleProperty()
  3. {
  4.   final double doubleValue = 123456.123456;
  5.   final String expected = "123456.123456";
  6.   gdb.createNode().setProperty( "double", doubleValue );
  7.   assertEquals( "create (_0 {`double`:" + expected + "})" + lineSeparator() + ";" + lineSeparator(), doExportGraph( gdb ) );
  8. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testPointTypeWithTwoOtherProperties()
  3. {
  4.   Point point = Values.pointValue( CoordinateReferenceSystem.Cartesian, 1, 1 );
  5.   String key = "location";
  6.   node1.setProperty( "prop1", 1 );
  7.   node1.setProperty( "prop2", 2 );
  8.   node1.setProperty( key, point );
  9.   newTransaction();
  10.   Object property = node1.getProperty( key );
  11.   assertEquals( point, property );
  12. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void lookupWithoutTransaction()
  3. {
  4.   // when
  5.   Node node;
  6.   try ( Transaction tx = db.beginTx() )
  7.   {
  8.     (node = db.createNode( label( "Node" ) )).setProperty( "prop", store );
  9.     tx.success();
  10.   }
  11.   // then
  12.   try ( Transaction tx = db.beginTx() )
  13.   {
  14.     assertEquals( 1, count( db.findNodes( label( "Node" ), "prop", lookup ) ) );
  15.     tx.success();
  16.   }
  17.   deleteNode( node );
  18. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void largeTx()
  3. {
  4.   Node node = getGraphDb().createNode();
  5.   node.setProperty( "anchor", "hi" );
  6.   for ( int i = 0; i < 255; i++ )
  7.   {
  8.     node.setProperty( "foo", 1 );
  9.     node.removeProperty( "foo" );
  10.   }
  11.   commit();
  12. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void txMustFailIfExceedingIndexKeySizeLimit()
  3. {
  4.   createIndex();
  5.   // Write
  6.   try ( Transaction tx = db.beginTx() )
  7.   {
  8.     String propValue = getString( keySizeLimit + 1 );
  9.     db.createNode( LABEL_ONE ).setProperty( propKey, propValue );
  10.     tx.success();
  11.   }
  12.   catch ( IllegalArgumentException e )
  13.   {
  14.     assertThat( e.getMessage(),
  15.         Matchers.containsString( "Property value size is too large for index. Please see index documentation for limitations." ) );
  16.   }
  17. }

代码示例来源：origin: neo4j/neo4j

  1. private void setProperty( Node node, String key, Object value )
  2. {
  3.   try ( Transaction tx = db.beginTx() )
  4.   {
  5.     node.setProperty( key, value );
  6.     tx.success();
  7.   }
  8. }

代码示例来源：origin: neo4j/neo4j

  1. void setProperty( String nodeName, String propertyName, Object propertyValue )
  2. {
  3.   Node i = this.getNode( nodeName );
  4.   GraphDatabaseService db = i.getGraphDatabase();
  5.   try ( Transaction tx = db.beginTx() )
  6.   {
  7.     i.setProperty( propertyName, propertyValue );
  8.     tx.success();
  9.   }
  10. }

代码示例来源：origin: neo4j/neo4j

  1. private void createAliens()
  2. {
  3.   try ( Transaction tx = db.beginTx() )
  4.   {
  5.     for ( int i = 0; i < 32; i++ )
  6.     {
  7.       Node alien = db.createNode( ALIEN );
  8.       alien.setProperty( SPECIMEN, i / 2 );
  9.     }
  10.     tx.success();
  11.   }
  12. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testNodeWithProperties()
  3. {
  4.   gdb.createNode().setProperty( "name", "Andres" );
  5.   assertEquals( "create (_0 {`name`:\"Andres\"})" + lineSeparator() + ";" + lineSeparator(), doExportGraph( gdb ) );
  6. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testPointTypeWithOneOtherProperty()
  3. {
  4.   Point point = Values.pointValue( CoordinateReferenceSystem.Cartesian, 1, 1 );
  5.   String key = "location";
  6.   node1.setProperty( "prop1", 1 );
  7.   node1.setProperty( key, point );
  8.   newTransaction();
  9.   Object property = node1.getProperty( key );
  10.   assertEquals( point, property );
  11. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2.   public void lookupWithoutTransactionWithCacheEviction()
  3.   {
  4.     // when
  5.     Node node;
  6.     try ( Transaction tx = db.beginTx() )
  7.     {
  8.       (node = db.createNode( label( "Node" ) )).setProperty( "prop", store );
  9.       tx.success();
  10.     }
  11.     // then
  12.     try ( Transaction tx = db.beginTx() )
  13.     {
  14.       assertEquals( 1, count( db.findNodes( label( "Node" ), "prop", lookup ) ) );
  15.       tx.success();
  16.     }
  17.     deleteNode( node );
  18.   }
  19. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void addAndRemovePropertiesWithinOneTransaction()
  3. {
  4.   Node node = getGraphDb().createNode();
  5.   node.setProperty( "name", "oscar" );
  6.   node.setProperty( "favourite_numbers", new Long[] { 1L, 2L, 3L } );
  7.   node.setProperty( "favourite_colors", new String[] { "blue", "red" } );
  8.   node.removeProperty( "favourite_colors" );
  9.   newTransaction();
  10.   assertNotNull( node.getProperty( "favourite_numbers", null ) );
  11. }

代码示例来源：origin: neo4j/neo4j

  1. @Test( timeout = 30_000 )
  2. public void terminateExpiredTransaction() throws Exception
  3. {
  4.   try ( Transaction transaction = database.beginTx() )
  5.   {
  6.     database.createNode();
  7.     transaction.success();
  8.   }
  9.   expectedException.expectMessage( "The transaction has been terminated." );
  10.   try ( Transaction transaction = database.beginTx() )
  11.   {
  12.     Node nodeById = database.getNodeById( NODE_ID );
  13.     nodeById.setProperty( "a", "b" );
  14.     executor.submit( startAnotherTransaction() ).get();
  15.   }
  16. }

代码示例来源：origin: neo4j/neo4j

  1. void setNodeProp( long nodeId, String propertyKey, String value )
  2. {
  3.   try ( Transaction tx = db.beginTx() )
  4.   {
  5.     Node node = db.getNodeById( nodeId );
  6.     node.setProperty( propertyKey, value );
  7.     tx.success();
  8.   }
  9. }

代码示例来源：origin: neo4j/neo4j

  1. private static void createNode( GraphDatabaseService database, String propertyName, Label testLabel )
  2. {
  3.   try ( Transaction transaction = database.beginTx() )
  4.   {
  5.     Node node = database.createNode( testLabel );
  6.     node.setProperty( propertyName, "value" );
  7.     transaction.success();
  8.   }
  9. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testNodeWithFloatProperty()
  3. {
  4.   final float floatValue = 10.1f;
  5.   final String expected = "10.100000";
  6.   gdb.createNode().setProperty( "float", floatValue );
  7.   assertEquals( "create (_0 {`float`:" + expected + "})" + lineSeparator() + ";" + lineSeparator(), doExportGraph( gdb ) );
  8. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testPointType()
  3. {
  4.   Point point = Values.pointValue( CoordinateReferenceSystem.Cartesian, 1, 1 );
  5.   String key = "location";
  6.   node1.setProperty( key, point );
  7.   newTransaction();
  8.   Object property = node1.getProperty( key );
  9.   assertEquals( point, property );
  10. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testNodeAddPropertyWithNullKey()
  3. {
  4.   Node node1 = getGraphDb().createNode();
  5.   try
  6.   {
  7.     node1.setProperty( null, "bar" );
  8.     fail( "Null key should result in exception." );
  9.   }
  10.   catch ( IllegalArgumentException ignored )
  11.   {
  12.   }
  13. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testPropertyStoreReferencesOnWrite() throws Throwable
  3. {
  4.   // Given
  5.   GraphDatabaseAPI db = dbRule.getGraphDatabaseAPI();
  6.   // and Given the cache contains a LazyProperty
  7.   long nId = ensurePropertyIsCachedLazyProperty( db, "some" );
  8.   // When
  9.   restartNeoDataSource( db );
  10.   // Then it should still be possible to manipulate properties on this node
  11.   try ( Transaction tx = db.beginTx() )
  12.   {
  13.     db.getNodeById( nId ).setProperty( "some", new long[]{-1, 2, 2, 3, 4, 5, 5} );
  14.     tx.success();
  15.   }
  16. }

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