org.neo4j.graphdb.Node.hasProperty()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.hasProperty()方法的一些代码示例，展示了Node.hasProperty()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.hasProperty()方法的具体详情如下：
包路径：org.neo4j.graphdb.Node
类名称：Node
方法名：hasProperty

Node.hasProperty介绍

暂无

代码示例

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testNodeGetProperties()
  3. {
  4.   Node node1 = getGraphDb().getNodeById( node1Id );
  5.   assertTrue( !node1.hasProperty( null ) );
  6.   Iterator<String> keys = node1.getPropertyKeys().iterator();
  7.   keys.next();
  8.   keys.next();
  9.   assertTrue( node1.hasProperty( key1 ) );
  10.   assertTrue( node1.hasProperty( key2 ) );
  11. }

代码示例来源：origin: neo4j/neo4j

  1. private void assertNoProperty( long node, String propertyKey )
  2. {
  3.   try ( org.neo4j.graphdb.Transaction ignore = graphDb.beginTx() )
  4.   {
  5.     assertFalse( graphDb.getNodeById( node ).hasProperty( propertyKey ) );
  6.   }
  7. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void shouldUseOriginalTypeOnEmptyCollectionWhenSettingAllProperties() throws Exception
  3. {
  4.   // Given
  5.   Node node = db.createNode();
  6.   node.setProperty( "name", "bob" );
  7.   node.setProperty( "arr", new String[]{"a","b"} );
  8.   // When
  9.   propSetter.setAllProperties( node, map("arr", new ArrayList<String>()) );
  10.   // Then
  11.   assertThat( node.hasProperty( "name" ), is(false));
  12.   assertThat( node.getProperty( "arr" ), is(new String[]{}));
  13. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void shouldSetAllProperties() throws Exception
  3. {
  4.   // Given
  5.   Node node = db.createNode();
  6.   node.setProperty( "name", "bob" );
  7.   node.setProperty( "age", 12 );
  8.   // When
  9.   propSetter.setAllProperties( node, map( "name", "Steven", "color", 123 ) );
  10.   // Then
  11.   assertThat( node.getProperty( "name" ), is("Steven"));
  12.   assertThat( node.getProperty( "color" ), is(123));
  13.   assertThat( node.hasProperty( "age" ), is(false));
  14. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void shouldBeAbleToRemoveNodeProperty() throws Exception
  3. {
  4.   Map<String, Object> properties = new HashMap<>();
  5.   properties.put( "foo", "bar" );
  6.   properties.put( "number", 15 );
  7.   long nodeId = createNode( properties );
  8.   actions.removeNodeProperty( nodeId, "foo" );
  9.   try ( Transaction tx = database.getGraph().beginTx() )
  10.   {
  11.     Node node = database.getGraph().getNodeById( nodeId );
  12.     assertEquals( 15, node.getProperty( "number" ) );
  13.     assertFalse( node.hasProperty( "foo" ) );
  14.     tx.success();
  15.   }
  16. }

代码示例来源：origin: neo4j/neo4j

  1. @Override
  2.   void perform( Graph graph, ExpectedTransactionData expectations )
  3.   {
  4.     Node node = graph.randomNode();
  5.     if ( node != null )
  6.     {
  7.       String key = graph.randomPropertyKey();
  8.       if ( node.hasProperty( key ) )
  9.       {
  10.         Object valueBefore = node.removeProperty( key );
  11.         expectations.removedProperty( node, key, valueBefore );
  12.         debug( node + " " + key + "=" + valueBefore );
  13.       }
  14.     }
  15.   }
  16. },

代码示例来源：origin: neo4j/neo4j

  1. private long ensurePropertyIsCachedLazyProperty( GraphDatabaseAPI slave, String key )
  2. {
  3.   long nId;
  4.   try ( Transaction tx = slave.beginTx() )
  5.   {
  6.     Node n = slave.createNode();
  7.     nId = n.getId();
  8.     n.setProperty( key, new long[]{-1, 2, 2, 3, 4, 5, 5} );
  9.     tx.success();
  10.   }
  11.   try ( Transaction tx = slave.beginTx() )
  12.   {
  13.     slave.getNodeById( nId ).hasProperty( key );
  14.     tx.success();
  15.   }
  16.   return nId;
  17. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testDateTimeArrayWithZoneOffsetAndZoneID()
  3. {
  4.   ZonedDateTime[] array = new ZonedDateTime[]{DateTimeValue.datetime( 1991, 1, 1, 0, 0, 13, 37, "-01:00" ).asObjectCopy(),
  5.       DateTimeValue.datetime( 1992, 2, 28, 1, 15, 0, 4000, "+11:00" ).asObjectCopy(),
  6.       DateTimeValue.datetime( 1992, 2, 28, 1, 15, 0, 4000, ZoneId.of( "Europe/Stockholm" ) ).asObjectCopy()};
  7.   String key = "testarray";
  8.   node1.setProperty( key, array );
  9.   newTransaction();
  10.   ZonedDateTime[] propertyValue = (ZonedDateTime[]) node1.getProperty( key );
  11.   assertEquals( array.length, propertyValue.length );
  12.   for ( int i = 0; i < array.length; i++ )
  13.   {
  14.     assertEquals( array[i], propertyValue[i] );
  15.   }
  16.   node1.removeProperty( key );
  17.   newTransaction();
  18.   assertTrue( !node1.hasProperty( key ) );
  19. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testPointArray()
  3. {
  4.   Point[] array = new Point[]{Values.pointValue( CoordinateReferenceSystem.Cartesian_3D, 1, 1, 1 ),
  5.                 Values.pointValue( CoordinateReferenceSystem.Cartesian_3D, 2, 1, 3 )};
  6.   String key = "testpointarray";
  7.   node1.setProperty( key, array );
  8.   newTransaction();
  9.   Point[] propertyValue = null;
  10.   propertyValue = (Point[]) node1.getProperty( key );
  11.   assertEquals( array.length, propertyValue.length );
  12.   for ( int i = 0; i < array.length; i++ )
  13.   {
  14.     assertEquals( array[i], propertyValue[i] );
  15.   }
  16.   node1.removeProperty( key );
  17.   newTransaction();
  18.   assertTrue( !node1.hasProperty( key ) );
  19. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testBooleanType()
  3. {
  4.   String key = "testbool";
  5.   node1.setProperty( key, Boolean.TRUE );
  6.   newTransaction();
  7.   Boolean propertyValue = (Boolean) node1.getProperty( key );
  8.   assertEquals( Boolean.TRUE, propertyValue );
  9.   node1.setProperty( key, Boolean.FALSE );
  10.   newTransaction();
  11.   propertyValue = (Boolean) node1.getProperty( key );
  12.   assertEquals( Boolean.FALSE, propertyValue );
  13.   node1.removeProperty( key );
  14.   newTransaction();
  15.   assertTrue( !node1.hasProperty( key ) );
  16. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testNodeMultiRemoveProperty()
  3. {
  4.   Node node = getGraphDb().createNode();
  5.   node.setProperty( "key0", "0" );
  6.   node.setProperty( "key1", "1" );
  7.   node.setProperty( "key2", "2" );
  8.   node.setProperty( "key3", "3" );
  9.   node.setProperty( "key4", "4" );
  10.   newTransaction();
  11.   node.removeProperty( "key3" );
  12.   node.removeProperty( "key2" );
  13.   node.removeProperty( "key3" );
  14.   newTransaction();
  15.   assertEquals( "0", node.getProperty( "key0" ) );
  16.   assertEquals( "1", node.getProperty( "key1" ) );
  17.   assertEquals( "4", node.getProperty( "key4" ) );
  18.   assertTrue( !node.hasProperty( "key2" ) );
  19.   assertTrue( !node.hasProperty( "key3" ) );
  20.   node.delete();
  21. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testDoubleType()
  3. {
  4.   Double dValue = 45.678d;
  5.   String key = "testdouble";
  6.   node1.setProperty( key, dValue );
  7.   newTransaction();
  8.   Double propertyValue;
  9.   propertyValue = (Double) node1.getProperty( key );
  10.   assertEquals( dValue, propertyValue );
  11.   dValue = 56784.3243d;
  12.   node1.setProperty( key, dValue );
  13.   newTransaction();
  14.   propertyValue = (Double) node1.getProperty( key );
  15.   assertEquals( dValue, propertyValue );
  16.   node1.removeProperty( key );
  17.   newTransaction();
  18.   assertTrue( !node1.hasProperty( key ) );
  19. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testShortType()
  3. {
  4.   Short sValue = (short) 453;
  5.   String key = "testshort";
  6.   node1.setProperty( key, sValue );
  7.   newTransaction();
  8.   Short propertyValue = null;
  9.   propertyValue = (Short) node1.getProperty( key );
  10.   assertEquals( sValue, propertyValue );
  11.   sValue = (short) 5335;
  12.   node1.setProperty( key, sValue );
  13.   newTransaction();
  14.   propertyValue = (Short) node1.getProperty( key );
  15.   assertEquals( sValue, propertyValue );
  16.   node1.removeProperty( key );
  17.   newTransaction();
  18.   assertTrue( !node1.hasProperty( key ) );
  19. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testByteType()
  3. {
  4.   byte b = (byte) 177;
  5.   Byte bValue = b;
  6.   String key = "testbyte";
  7.   node1.setProperty( key, bValue );
  8.   newTransaction();
  9.   Byte propertyValue = null;
  10.   propertyValue = (Byte) node1.getProperty( key );
  11.   assertEquals( bValue, propertyValue );
  12.   bValue = (byte) 200;
  13.   node1.setProperty( key, bValue );
  14.   newTransaction();
  15.   propertyValue = (Byte) node1.getProperty( key );
  16.   assertEquals( bValue, propertyValue );
  17.   node1.removeProperty( key );
  18.   newTransaction();
  19.   assertTrue( !node1.hasProperty( key ) );
  20. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testFloatType()
  3. {
  4.   Float fValue = 45.678f;
  5.   String key = "testfloat";
  6.   node1.setProperty( key, fValue );
  7.   newTransaction();
  8.   Float propertyValue = null;
  9.   propertyValue = (Float) node1.getProperty( key );
  10.   assertEquals( fValue, propertyValue );
  11.   fValue = 5684.3243f;
  12.   node1.setProperty( key, fValue );
  13.   newTransaction();
  14.   propertyValue = (Float) node1.getProperty( key );
  15.   assertEquals( fValue, propertyValue );
  16.   node1.removeProperty( key );
  17.   newTransaction();
  18.   assertTrue( !node1.hasProperty( key ) );
  19. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testDateArray()
  3. {
  4.   LocalDate[] array = new LocalDate[]{DateValue.date( 2018, 1, 31 ).asObjectCopy(), DateValue.epochDate( 2147483648L ).asObjectCopy()};
  5.   String key = "testarray";
  6.   node1.setProperty( key, array );
  7.   newTransaction();
  8.   LocalDate[] propertyValue = (LocalDate[]) node1.getProperty( key );
  9.   assertEquals( array.length, propertyValue.length );
  10.   for ( int i = 0; i < array.length; i++ )
  11.   {
  12.     assertEquals( array[i], propertyValue[i] );
  13.   }
  14.   node1.removeProperty( key );
  15.   newTransaction();
  16.   assertTrue( !node1.hasProperty( key ) );
  17. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testLocalDateTimeArray()
  3. {
  4.   LocalDateTime[] array = new LocalDateTime[]{LocalDateTimeValue.localDateTime( 1991, 1, 1, 0, 0, 13, 37 ).asObjectCopy(),
  5.       LocalDateTimeValue.localDateTime( 1992, 2, 28, 1, 15, 0, 4000 ).asObjectCopy()};
  6.   String key = "testarray";
  7.   node1.setProperty( key, array );
  8.   newTransaction();
  9.   LocalDateTime[] propertyValue = (LocalDateTime[]) node1.getProperty( key );
  10.   assertEquals( array.length, propertyValue.length );
  11.   for ( int i = 0; i < array.length; i++ )
  12.   {
  13.     assertEquals( array[i], propertyValue[i] );
  14.   }
  15.   node1.removeProperty( key );
  16.   newTransaction();
  17.   assertTrue( !node1.hasProperty( key ) );
  18. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testLocalTimeArray()
  3. {
  4.   LocalTime[] array = new LocalTime[]{LocalTimeValue.localTime( 0, 0, 0, 37 ).asObjectCopy(), LocalTimeValue.localTime( 0, 0, 13, 37 ).asObjectCopy()};
  5.   String key = "testarray";
  6.   node1.setProperty( key, array );
  7.   newTransaction();
  8.   LocalTime[] propertyValue = (LocalTime[]) node1.getProperty( key );
  9.   assertEquals( array.length, propertyValue.length );
  10.   for ( int i = 0; i < array.length; i++ )
  11.   {
  12.     assertEquals( array[i], propertyValue[i] );
  13.   }
  14.   node1.removeProperty( key );
  15.   newTransaction();
  16.   assertTrue( !node1.hasProperty( key ) );
  17. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testDurationArray()
  3. {
  4.   TemporalAmount[] array = new TemporalAmount[]{DurationValue.duration( 57, 57, 57, 57 ).asObjectCopy(),
  5.       DurationValue.duration( -40, -189, -6247, -1 ).asObjectCopy()};
  6.   String key = "testarray";
  7.   node1.setProperty( key, array );
  8.   newTransaction();
  9.   TemporalAmount[] propertyValue = (TemporalAmount[]) node1.getProperty( key );
  10.   assertEquals( array.length, propertyValue.length );
  11.   for ( int i = 0; i < array.length; i++ )
  12.   {
  13.     assertEquals( array[i], propertyValue[i] );
  14.   }
  15.   node1.removeProperty( key );
  16.   newTransaction();
  17.   assertTrue( !node1.hasProperty( key ) );
  18. }

代码示例来源：origin: neo4j/neo4j

  1. @Test
  2. public void testDateTimeArrayWithZoneOffset()
  3. {
  4.   ZonedDateTime[] array = new ZonedDateTime[]{DateTimeValue.datetime( 1991, 1, 1, 0, 0, 13, 37, "-01:00" ).asObjectCopy(),
  5.       DateTimeValue.datetime( 1992, 2, 28, 1, 15, 0, 4000, "+11:00" ).asObjectCopy()};
  6.   String key = "testarray";
  7.   node1.setProperty( key, array );
  8.   newTransaction();
  9.   ZonedDateTime[] propertyValue = (ZonedDateTime[]) node1.getProperty( key );
  10.   assertEquals( array.length, propertyValue.length );
  11.   for ( int i = 0; i < array.length; i++ )
  12.   {
  13.     assertEquals( array[i], propertyValue[i] );
  14.   }
  15.   node1.removeProperty( key );
  16.   newTransaction();
  17.   assertTrue( !node1.hasProperty( key ) );
  18. }

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