Class BooleanNode

All Implemented Interfaces:
Iterable<JsonNode>, JsonSerializable, JsonSerializableWithType

public final class BooleanNode extends ValueNode
This concrete value class is used to contain boolean (true / false) values. Only two instances are ever created, to minimize memory usage
  • Field Details

  • Method Details

    • getTrue

      public static BooleanNode getTrue()
    • getFalse

      public static BooleanNode getFalse()
    • valueOf

      public static BooleanNode valueOf(boolean b)
    • asToken

      public JsonToken asToken()
      Description copied from class: BaseJsonNode
      Method that can be used for efficient type detection when using stream abstraction for traversing nodes. Will return the first JsonToken that equivalent stream event would produce (for most nodes there is just one token but for structured/container types multiple)
      Specified by:
      asToken in class ValueNode
    • isBoolean

      public boolean isBoolean()
      Description copied from class: JsonNode
      Method that can be used to check if this node was created from Json boolean value (literals "true" and "false").
      Overrides:
      isBoolean in class JsonNode
    • getBooleanValue

      public boolean getBooleanValue()
      Description copied from class: JsonNode
      Method to use for accessing JSON boolean values (value literals 'true' and 'false'). For other types, always returns false.
      Overrides:
      getBooleanValue in class JsonNode
      Returns:
      Textual value this node contains, iff it is a textual json node (comes from Json String value entry)
    • asText

      public String asText()
      Description copied from class: JsonNode
      Method that will return valid String representation of the container value, if the node is a value node (method JsonNode.isValueNode() returns true), otherwise empty String.
      Specified by:
      asText in class JsonNode
    • asBoolean

      public boolean asBoolean()
      Description copied from class: JsonNode
      Method that will try to convert value of this node to a Java boolean. JSON booleans map naturally; integer numbers other than 0 map to true, and 0 maps to false and Strings 'true' and 'false' map to corresponding values.

      If representation can not be converted to a boolean value (including structured types like Objects and Arrays), default value of false will be returned; no exceptions are thrown.

      Overrides:
      asBoolean in class JsonNode
    • asBoolean

      public boolean asBoolean(boolean defaultValue)
      Description copied from class: JsonNode
      Method that will try to convert value of this node to a Java boolean. JSON booleans map naturally; integer numbers other than 0 map to true, and 0 maps to false and Strings 'true' and 'false' map to corresponding values.

      If representation can not be converted to a boolean value (including structured types like Objects and Arrays), specified defaultValue will be returned; no exceptions are thrown.

      Overrides:
      asBoolean in class JsonNode
    • asInt

      public int asInt(int defaultValue)
      Description copied from class: JsonNode
      Method that will try to convert value of this node to a Java int. Numbers are coerced using default Java rules; booleans convert to 0 (false) and 1 (true), and Strings are parsed using default Java language integer parsing rules.

      If representation can not be converted to an int (including structured types like Objects and Arrays), specified defaultValue will be returned; no exceptions are thrown.

      Overrides:
      asInt in class JsonNode
    • asLong

      public long asLong(long defaultValue)
      Description copied from class: JsonNode
      Method that will try to convert value of this node to a Java long. Numbers are coerced using default Java rules; booleans convert to 0 (false) and 1 (true), and Strings are parsed using default Java language integer parsing rules.

      If representation can not be converted to an long (including structured types like Objects and Arrays), specified defaultValue will be returned; no exceptions are thrown.

      Overrides:
      asLong in class JsonNode
    • asDouble

      public double asDouble(double defaultValue)
      Description copied from class: JsonNode
      Method that will try to convert value of this node to a Java double. Numbers are coerced using default Java rules; booleans convert to 0.0 (false) and 1.0 (true), and Strings are parsed using default Java language integer parsing rules.

      If representation can not be converted to an int (including structured types like Objects and Arrays), specified defaultValue will be returned; no exceptions are thrown.

      Overrides:
      asDouble in class JsonNode
    • serialize

      public final void serialize(JsonGenerator jg, SerializerProvider provider) throws IOException, JsonProcessingException
      Description copied from class: BaseJsonNode
      Method called to serialize node instances using given generator.
      Specified by:
      serialize in interface JsonSerializable
      Specified by:
      serialize in class BaseJsonNode
      Throws:
      IOException
      JsonProcessingException
    • equals

      public boolean equals(Object o)
      Description copied from class: JsonNode
      Equality for node objects is defined as full (deep) value equality. This means that it is possible to compare complete JSON trees for equality by comparing equality of root nodes.

      Note: marked as abstract to ensure all implementation classes define it properly and not rely on definition from Object.

      Specified by:
      equals in class JsonNode