com.fasterxml.jackson.core.JsonGenerator#writeNullField ( )源码实例Demo

下面列出了com.fasterxml.jackson.core.JsonGenerator#writeNullField ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： constellation 文件： TransactionGraphLabelsIOProvider.java

@Override
public void writeObject(final Attribute attr, final int elementId, final JsonGenerator jsonGenerator, final GraphReadMethods graph, final GraphByteWriter byteWriter, final boolean verbose) throws IOException {
    if (verbose || !graph.isDefaultValue(attr.getId(), elementId)) {
        final GraphLabels graphLabels = graph.getObjectValue(attr.getId(), elementId);
        if (graphLabels == null) {
            jsonGenerator.writeNullField(attr.getName());
        } else {
            jsonGenerator.writeArrayFieldStart(attr.getName());
            for (GraphLabel graphLabel : graphLabels.getLabels()) {
                jsonGenerator.writeStartObject();
                jsonGenerator.writeStringField(ATTRIBUTE_NAME, graphLabel.getAttributeName());

                final ConstellationColor color = graphLabel.getColor();
                jsonGenerator.writeObjectFieldStart(COLOR);
                ColorIOProvider.writeColorObject(color, jsonGenerator);
                jsonGenerator.writeEndObject();

                jsonGenerator.writeNumberField(RADIUS, graphLabel.getSize());
                jsonGenerator.writeEndObject();
            }
            jsonGenerator.writeEndArray();
        }
    }
}

源代码2 项目： constellation 文件： FindStateIOProvider.java

@Override
public void writeObject(final Attribute attr, final int elementId, final JsonGenerator jsonGenerator, final GraphReadMethods graph, final GraphByteWriter byteWriter, final boolean verbose) throws IOException {
    if (verbose || !graph.isDefaultValue(attr.getId(), elementId)) {
        final FindState state = (FindState) graph.getObjectValue(attr.getId(), elementId);
        if (state == null) {
            jsonGenerator.writeNullField(attr.getName());
        } else {
            jsonGenerator.writeObjectFieldStart(attr.getName());
            jsonGenerator.writeStringField(GTYP, state.getGraphElementType().toString());
            jsonGenerator.writeBooleanField(MODE, state.isAny());
            jsonGenerator.writeBooleanField(HOLD, state.isHeld());
            final Iterator<FindRule> itr = state.getRules().listIterator();
            jsonGenerator.writeArrayFieldStart(RULE);
            while (itr.hasNext()) {
                addRule(jsonGenerator, itr.next());
            }
            jsonGenerator.writeEndArray();
            jsonGenerator.writeEndObject();
        }
    }
}

源代码3 项目： azure-storage-android 文件： TableEntitySerializer.java

private static void writeJsonProperty(JsonGenerator generator, Entry<String, EntityProperty> prop)
        throws JsonGenerationException, IOException {
    EdmType edmType = prop.getValue().getEdmType();
    if (prop.getValue().getIsNull()) {
        generator.writeNullField(prop.getKey());
    }
    else if (edmType == EdmType.BOOLEAN) {
        generator.writeBooleanField(prop.getKey(), prop.getValue().getValueAsBoolean());
    }
    else if (edmType == EdmType.DOUBLE) {
        generator.writeNumberField(prop.getKey(), prop.getValue().getValueAsDouble());
    }
    else if (edmType == EdmType.INT32) {
        generator.writeNumberField(prop.getKey(), prop.getValue().getValueAsInteger());
    }
    else {
        generator.writeStringField(prop.getKey(), prop.getValue().getValueAsString());
    }
}

源代码4 项目： kripton 文件： Bean70ABindMap.java

@Override
public int serializeOnJacksonAsString(Bean70A object, JsonGenerator jacksonSerializer) throws
    Exception {
  jacksonSerializer.writeStartObject();
  int fieldCount=0;

  // Serialized Field:

  // field valueBean (mapped with "valueBean")
  if (object.valueBean!=null)  {
    fieldCount++;
    jacksonSerializer.writeFieldName("valueBean");
    if (bean70ABindMap.serializeOnJacksonAsString(object.valueBean, jacksonSerializer)==0) {
      jacksonSerializer.writeNullField("valueBean");
    }
  }

  // field valueString (mapped with "valueString")
  if (object.valueString!=null)  {
    fieldCount++;
    jacksonSerializer.writeStringField("valueString", object.valueString);
  }

  jacksonSerializer.writeEndObject();
  return fieldCount;
}

源代码5 项目： kripton 文件： Bean63Table.java

/**
 * for attribute valueMapEnumByte serialization
 */
public static byte[] serializeValueMapEnumByte(HashMap<EnumType, Byte> value) {
  if (value==null) {
    return null;
  }
  KriptonJsonContext context=KriptonBinder.jsonBind();
  try (KriptonByteArrayOutputStream stream=new KriptonByteArrayOutputStream(); JacksonWrapperSerializer wrapper=context.createSerializer(stream)) {
    JsonGenerator jacksonSerializer=wrapper.jacksonGenerator;
    jacksonSerializer.writeStartObject();
    int fieldCount=0;
    if (value!=null)  {
      fieldCount++;
      // write wrapper tag
      if (value.size()>0) {
        jacksonSerializer.writeFieldName("element");
        jacksonSerializer.writeStartArray();
        for (Map.Entry<EnumType, Byte> item: value.entrySet()) {
          jacksonSerializer.writeStartObject();
          jacksonSerializer.writeStringField("key", item.getKey().toString());
          if (item.getValue()==null) {
            jacksonSerializer.writeNullField("value");
          } else {
            jacksonSerializer.writeNumberField("value", item.getValue());
          }
          jacksonSerializer.writeEndObject();
        }
        jacksonSerializer.writeEndArray();
      } else {
        jacksonSerializer.writeNullField("element");
      }
    }
    jacksonSerializer.writeEndObject();
    jacksonSerializer.flush();
    return stream.toByteArray();
  } catch(Exception e) {
    e.printStackTrace();
    throw(new KriptonRuntimeException(e.getMessage()));
  }
}

源代码6 项目： kripton 文件： CountryTable.java

/**
 * for attribute translatedName serialization
 */
public static byte[] serializeTranslatedName(Map<Translation, String> value) {
  if (value==null) {
    return null;
  }
  KriptonJsonContext context=KriptonBinder.jsonBind();
  try (KriptonByteArrayOutputStream stream=new KriptonByteArrayOutputStream(); JacksonWrapperSerializer wrapper=context.createSerializer(stream)) {
    JsonGenerator jacksonSerializer=wrapper.jacksonGenerator;
    jacksonSerializer.writeStartObject();
    int fieldCount=0;
    if (value!=null)  {
      fieldCount++;
      // write wrapper tag
      if (value.size()>0) {
        jacksonSerializer.writeFieldName("element");
        jacksonSerializer.writeStartArray();
        for (Map.Entry<Translation, String> item: value.entrySet()) {
          jacksonSerializer.writeStartObject();
          jacksonSerializer.writeStringField("key", item.getKey().toString());
          if (item.getValue()==null) {
            jacksonSerializer.writeNullField("value");
          } else {
            jacksonSerializer.writeStringField("value", item.getValue());
          }
          jacksonSerializer.writeEndObject();
        }
        jacksonSerializer.writeEndArray();
      } else {
        jacksonSerializer.writeNullField("element");
      }
    }
    jacksonSerializer.writeEndObject();
    jacksonSerializer.flush();
    return stream.toByteArray();
  } catch(Exception e) {
    e.printStackTrace();
    throw(new KriptonRuntimeException(e.getMessage()));
  }
}

源代码7 项目： kripton 文件： Bean64BTable.java

/**
 * for attribute valueMapStringBean serialization
 */
public static byte[] serializeValueMapStringBean(Map<String, Bean64B> value) {
  if (value==null) {
    return null;
  }
  KriptonJsonContext context=KriptonBinder.jsonBind();
  try (KriptonByteArrayOutputStream stream=new KriptonByteArrayOutputStream(); JacksonWrapperSerializer wrapper=context.createSerializer(stream)) {
    JsonGenerator jacksonSerializer=wrapper.jacksonGenerator;
    jacksonSerializer.writeStartObject();
    int fieldCount=0;
    if (value!=null)  {
      fieldCount++;
      // write wrapper tag
      if (value.size()>0) {
        jacksonSerializer.writeFieldName("element");
        jacksonSerializer.writeStartArray();
        for (Map.Entry<String, Bean64B> item: value.entrySet()) {
          jacksonSerializer.writeStartObject();
          jacksonSerializer.writeStringField("key", item.getKey());
          if (item.getValue()==null) {
            jacksonSerializer.writeNullField("value");
          } else {
            jacksonSerializer.writeFieldName("value");
            bean64BBindMap.serializeOnJackson(item.getValue(), jacksonSerializer);
          }
          jacksonSerializer.writeEndObject();
        }
        jacksonSerializer.writeEndArray();
      } else {
        jacksonSerializer.writeNullField("element");
      }
    }
    jacksonSerializer.writeEndObject();
    jacksonSerializer.flush();
    return stream.toByteArray();
  } catch(Exception e) {
    e.printStackTrace();
    throw(new KriptonRuntimeException(e.getMessage()));
  }
}

源代码8 项目： constellation 文件： TimeZoneIOProvider.java

@Override
public void writeObject(final Attribute attr, final int elementId, final JsonGenerator jsonGenerator, 
        final GraphReadMethods graph, final GraphByteWriter byteWriter, final boolean verbose) throws IOException {
    if (verbose || !graph.isDefaultValue(attr.getId(), elementId)) {
        final String attributeValue = graph.getStringValue(attr.getId(), elementId);
        if (attributeValue == null) {
            jsonGenerator.writeNullField(attr.getName());
        } else {
            jsonGenerator.writeStringField(attr.getName(), attributeValue);
        }
    }
}

源代码9 项目： kripton 文件： CountryTable.java

/**
 * for attribute translatedName serialization
 */
public static byte[] serializeTranslatedName(Map<Translation, String> value) {
  if (value==null) {
    return null;
  }
  KriptonJsonContext context=KriptonBinder.jsonBind();
  try (KriptonByteArrayOutputStream stream=new KriptonByteArrayOutputStream(); JacksonWrapperSerializer wrapper=context.createSerializer(stream)) {
    JsonGenerator jacksonSerializer=wrapper.jacksonGenerator;
    jacksonSerializer.writeStartObject();
    int fieldCount=0;
    if (value!=null)  {
      fieldCount++;
      // write wrapper tag
      if (value.size()>0) {
        jacksonSerializer.writeFieldName("element");
        jacksonSerializer.writeStartArray();
        for (Map.Entry<Translation, String> item: value.entrySet()) {
          jacksonSerializer.writeStartObject();
          jacksonSerializer.writeStringField("key", item.getKey().toString());
          if (item.getValue()==null) {
            jacksonSerializer.writeNullField("value");
          } else {
            jacksonSerializer.writeStringField("value", item.getValue());
          }
          jacksonSerializer.writeEndObject();
        }
        jacksonSerializer.writeEndArray();
      } else {
        jacksonSerializer.writeNullField("element");
      }
    }
    jacksonSerializer.writeEndObject();
    jacksonSerializer.flush();
    return stream.toByteArray();
  } catch(Exception e) {
    e.printStackTrace();
    throw(new KriptonRuntimeException(e.getMessage()));
  }
}

源代码10 项目： jackson-jr 文件： CustomValueWritersTest.java

@Override
public void writeValue(JSONWriter context, JsonGenerator g,
        Object v) throws IOException {
    g.writeStartObject();
    g.writeNumberField("answer", 42);
    g.writeNullField("none");
    g.writeEndObject();
}

源代码11 项目： constellation 文件： LayerNameIOProvider.java

@Override
public void writeObject(final Attribute attribute, final int elementId, final JsonGenerator jsonGenerator, final GraphReadMethods graph, final GraphByteWriter byteWriter, final boolean verbose) throws IOException {
    if (verbose || !graph.isDefaultValue(attribute.getId(), elementId)) {
        final LayerName ln = (LayerName) graph.getObjectValue(attribute.getId(), elementId);
        if (ln != null) {
            jsonGenerator.writeObjectFieldStart(attribute.getName());
            jsonGenerator.writeStringField(NAME_TAG, ln.getName());
            jsonGenerator.writeNumberField(LAYER_TAG, ln.getLayer());
            jsonGenerator.writeEndObject();
        } else {
            jsonGenerator.writeNullField(attribute.getName());
        }
    }
}

源代码12 项目： constellation 文件： HyperlinkIOProvider.java

@Override
public void writeObject(final Attribute attr, final int elementId, final JsonGenerator jsonGenerator, 
        final GraphReadMethods graph, final GraphByteWriter byteWriter, final boolean verbose) throws IOException {
    if (verbose || !graph.isDefaultValue(attr.getId(), elementId)) {
        final String attributeValue = graph.getStringValue(attr.getId(), elementId);
        if (attributeValue == null) {
            jsonGenerator.writeNullField(attr.getName());
        } else {
            jsonGenerator.writeStringField(attr.getName(), attributeValue);
        }
    }
}

源代码13 项目： kripton 文件： BindBeanSharedPreferences.java

/**
 * for attribute valueLinkedMapStringBean serialization
 */
protected String serializeValueLinkedMapStringBean(LinkedHashMap<String, Bean> value) {
  if (value==null) {
    return null;
  }
  KriptonJsonContext context=KriptonBinder.jsonBind();
  try (KriptonByteArrayOutputStream stream=new KriptonByteArrayOutputStream(); JacksonWrapperSerializer wrapper=context.createSerializer(stream)) {
    JsonGenerator jacksonSerializer=wrapper.jacksonGenerator;
    jacksonSerializer.writeStartObject();
    int fieldCount=0;
    if (value!=null)  {
      fieldCount++;
      // write wrapper tag
      if (value.size()>0) {
        jacksonSerializer.writeFieldName("valueLinkedMapStringBean");
        jacksonSerializer.writeStartArray();
        for (Map.Entry<String, Bean> item: value.entrySet()) {
          jacksonSerializer.writeStartObject();
          jacksonSerializer.writeStringField("key", item.getKey());
          if (item.getValue()==null) {
            jacksonSerializer.writeNullField("value");
          } else {
            jacksonSerializer.writeFieldName("value");
            beanBindMap.serializeOnJackson(item.getValue(), jacksonSerializer);
          }
          jacksonSerializer.writeEndObject();
        }
        jacksonSerializer.writeEndArray();
      } else {
        jacksonSerializer.writeNullField("valueLinkedMapStringBean");
      }
    }
    jacksonSerializer.writeEndObject();
    jacksonSerializer.flush();
    return stream.toString();
  } catch(Exception e) {
    e.printStackTrace();
    throw(new KriptonRuntimeException(e.getMessage()));
  }
}

源代码14 项目： kripton 文件： BindBean63SharedPreferences.java

/**
 * for attribute valueMapStringByte serialization
 */
protected String serializeValueMapStringByte(Map<String, Byte> value) {
  if (value==null) {
    return null;
  }
  KriptonJsonContext context=KriptonBinder.jsonBind();
  try (KriptonByteArrayOutputStream stream=new KriptonByteArrayOutputStream(); JacksonWrapperSerializer wrapper=context.createSerializer(stream)) {
    JsonGenerator jacksonSerializer=wrapper.jacksonGenerator;
    jacksonSerializer.writeStartObject();
    int fieldCount=0;
    if (value!=null)  {
      fieldCount++;
      // write wrapper tag
      if (value.size()>0) {
        jacksonSerializer.writeFieldName("valueMapStringByte");
        jacksonSerializer.writeStartArray();
        for (Map.Entry<String, Byte> item: value.entrySet()) {
          jacksonSerializer.writeStartObject();
          jacksonSerializer.writeStringField("key", item.getKey());
          if (item.getValue()==null) {
            jacksonSerializer.writeNullField("value");
          } else {
            jacksonSerializer.writeNumberField("value", item.getValue());
          }
          jacksonSerializer.writeEndObject();
        }
        jacksonSerializer.writeEndArray();
      } else {
        jacksonSerializer.writeNullField("valueMapStringByte");
      }
    }
    jacksonSerializer.writeEndObject();
    jacksonSerializer.flush();
    return stream.toString();
  } catch(Exception e) {
    throw(new KriptonRuntimeException(e.getMessage()));
  }
}

源代码15 项目： constellation 文件： RawIOProvider.java

@Override
public void writeObject(final Attribute attr, final int elementId, final JsonGenerator jsonGenerator, final GraphReadMethods graph, final GraphByteWriter byteWriter, final boolean verbose) throws IOException {
    if (verbose || !graph.isDefaultValue(attr.getId(), elementId)) {
        final RawData attributeValue = graph.getObjectValue(attr.getId(), elementId);
        if (attributeValue == null) {
            jsonGenerator.writeNullField(attr.getName());
        } else {
            jsonGenerator.writeObjectFieldStart(attr.getName());
            jsonGenerator.writeStringField(RAW_IDENTIFIER_TAG, attributeValue.getRawIdentifier());
            jsonGenerator.writeStringField(RAW_TYPE_TAG, attributeValue.getRawType());
            jsonGenerator.writeEndObject();
        }
    }
}

源代码16 项目： constellation 文件： VertexTypeIOProvider.java

@Override
public void writeObject(final Attribute attribute, final int elementId, final JsonGenerator jsonGenerator, final GraphReadMethods graph, final GraphByteWriter byteWriter, final boolean verbose) throws IOException {
    if (verbose || !graph.isDefaultValue(attribute.getId(), elementId)) {
        final SchemaVertexType attributeValue = graph.getObjectValue(attribute.getId(), elementId);
        if (attributeValue == null) {
            jsonGenerator.writeNullField(attribute.getName());
        } else {
            jsonGenerator.writeObjectFieldStart(attribute.getName());
            writeTypeObject(attributeValue, jsonGenerator);
            jsonGenerator.writeEndObject();
        }
    }
}

源代码17 项目： constellation 文件： LongObjectIOProvider.java

@Override
public void writeObject(final Attribute attribute, final int elementId, final JsonGenerator jsonGenerator, 
        final GraphReadMethods graph, final GraphByteWriter byteWriter, final boolean verbose) throws IOException {
    if (verbose || !graph.isDefaultValue(attribute.getId(), elementId)) {
        final Long attributeValue = graph.getObjectValue(attribute.getId(), elementId);
        if (attributeValue != null) {
            jsonGenerator.writeNumberField(attribute.getName(), attributeValue);
        } else {
            jsonGenerator.writeNullField(attribute.getName());
        }
    }
}

源代码18 项目： kripton 文件： Bean81SBindMap.java

@Override
public int serializeOnJackson(Bean81S object, JsonGenerator jacksonSerializer) throws Exception {
  jacksonSerializer.writeStartObject();
  int fieldCount=0;

  // Serialized Field:

  // field id (mapped with "id")
  fieldCount++;
  jacksonSerializer.writeNumberField("id", object.id);

  // field valueByteArray (mapped with "valueByteArray")
  if (object.valueByteArray!=null)  {
    fieldCount++;
    jacksonSerializer.writeBinaryField("valueByteArray", object.valueByteArray);
  }

  // field valueInteger (mapped with "valueInteger")
  if (object.valueInteger!=null)  {
    fieldCount++;
    jacksonSerializer.writeNumberField("valueInteger", object.valueInteger);
  }

  // field valueMapStringInteger (mapped with "valueMapStringInteger")
  if (object.valueMapStringInteger!=null)  {
    fieldCount++;
    // write wrapper tag
    if (object.valueMapStringInteger.size()>0) {
      jacksonSerializer.writeFieldName("valueMapStringInteger");
      jacksonSerializer.writeStartArray();
      for (Map.Entry<String, Integer> item: object.valueMapStringInteger.entrySet()) {
        jacksonSerializer.writeStartObject();
        jacksonSerializer.writeStringField("key", item.getKey());
        if (item.getValue()==null) {
          jacksonSerializer.writeNullField("value");
        } else {
          jacksonSerializer.writeNumberField("value", item.getValue());
        }
        jacksonSerializer.writeEndObject();
      }
      jacksonSerializer.writeEndArray();
    } else {
      jacksonSerializer.writeNullField("valueMapStringInteger");
    }
  }

  jacksonSerializer.writeEndObject();
  return fieldCount;
}

源代码19 项目： kripton 文件： Bean81UBindMap.java

@Override
public int serializeOnJackson(Bean81U object, JsonGenerator jacksonSerializer) throws Exception {
  jacksonSerializer.writeStartObject();
  int fieldCount=0;

  // Serialized Field:

  // field id (mapped with "id")
  fieldCount++;
  jacksonSerializer.writeNumberField("id", object.id);

  // field valueByteArray (mapped with "valueByteArray")
  if (object.valueByteArray!=null)  {
    fieldCount++;
    jacksonSerializer.writeBinaryField("valueByteArray", object.valueByteArray);
  }

  // field valueInteger (mapped with "valueInteger")
  if (object.valueInteger!=null)  {
    fieldCount++;
    jacksonSerializer.writeNumberField("valueInteger", object.valueInteger);
  }

  // field valueMapStringInteger (mapped with "valueMapStringInteger")
  if (object.valueMapStringInteger!=null)  {
    fieldCount++;
    // write wrapper tag
    if (object.valueMapStringInteger.size()>0) {
      jacksonSerializer.writeFieldName("valueMapStringInteger");
      jacksonSerializer.writeStartArray();
      for (Map.Entry<String, Integer> item: object.valueMapStringInteger.entrySet()) {
        jacksonSerializer.writeStartObject();
        jacksonSerializer.writeStringField("key", item.getKey());
        if (item.getValue()==null) {
          jacksonSerializer.writeNullField("value");
        } else {
          jacksonSerializer.writeNumberField("value", item.getValue());
        }
        jacksonSerializer.writeEndObject();
      }
      jacksonSerializer.writeEndArray();
    } else {
      jacksonSerializer.writeNullField("valueMapStringInteger");
    }
  }

  jacksonSerializer.writeEndObject();
  return fieldCount;
}

源代码20 项目： kripton 文件： ResponseBindMap.java

@Override
public int serializeOnJacksonAsString(Response object, JsonGenerator jacksonSerializer) throws
    Exception {
  jacksonSerializer.writeStartObject();
  int fieldCount=0;

  // Serialized Field:

  // field status (mapped with "status")
  if (object.status!=null)  {
    fieldCount++;
    jacksonSerializer.writeStringField("status", object.status);
  }

  // field users (mapped with "users")
  if (object.users!=null)  {
    fieldCount++;
    int n=object.users.size();
    User item;
    // write wrapper tag
    jacksonSerializer.writeFieldName("users");
    if (n>0) {
      jacksonSerializer.writeStartArray();
      for (int i=0; i<n; i++) {
        item=object.users.get(i);
        if (item==null) {
          jacksonSerializer.writeString("null");
        } else {
          if (userBindMap.serializeOnJacksonAsString(item, jacksonSerializer)==0) {
            jacksonSerializer.writeNullField("users");
          }
        }
      }
      jacksonSerializer.writeEndArray();
    } else {
      jacksonSerializer.writeString("");
    }
  }

  // field isRealJson (mapped with "is_real_json")
  jacksonSerializer.writeStringField("is_real_json", PrimitiveUtils.writeBoolean(object.isRealJson));

  jacksonSerializer.writeEndObject();
  return fieldCount;
}