File Information
Library: JSON
Package: JSON
Header: Poco/JSON/PrintHandler.h
Description
PrintHandler formats and prints the JSON object to either user-provided std::ostream or standard output. If indent is zero, the output is a condensed JSON string, otherwise, the proper indentation is applied to elements.
Inheritance
Direct Base Classes: Handler
All Base Classes: Handler
Member Summary
Member Functions: comma, endArray, endObject, key, null, reset, setIndent, startArray, startObject, value
Inherited Functions: asStruct, asVar, endArray, endObject, key, null, reset, startArray, startObject, value
Types Aliases
Ptr
using Ptr = SharedPtr < PrintHandler >;
Constructors
PrintHandler
PrintHandler(
unsigned indent = 0,
int options = Poco::JSON_WRAP_STRINGS
);
Creates the PrintHandler.
PrintHandler
PrintHandler(
std::ostream & out,
unsigned indent = 0,
int options = Poco::JSON_WRAP_STRINGS
);
Creates the PrintHandler.
Destructor
~PrintHandler 
~PrintHandler();
Destroys the PrintHandler.
Member Functions
comma
void comma();
A comma is read; it will be written to the output as "true" or "false".
endArray
void endArray();
The parser has read a ]; the array is closed.
See also: Poco::JSON::Handler::endArray()
endObject
void endObject();
The parser has read a '}'; the object is closed.
See also: Poco::JSON::Handler::endObject()
key
void key(
const std::string & k
);
A key of an object is read; it will be written to the output, followed by a ':'. If indent is greater than zero, the colon is padded by a space before and after.
See also: Poco::JSON::Handler::key()
null
void null();
A null value is read; "null" will be written to the output.
See also: Poco::JSON::Handler::null()
reset
void reset();
Resets the handler state.
See also: Poco::JSON::Handler::reset()
setIndent 
void setIndent(
unsigned indent
);
Sets indentation.
startArray
void startArray();
The parser has read a [; a new array will be started. If indent is greater than zero, a newline will be appended.
See also: Poco::JSON::Handler::startArray()
startObject
void startObject();
The parser has read a '{'; a new object is started. If indent is greater than zero, a newline will be appended.
See also: Poco::JSON::Handler::startObject()
value
void value(
int v
);
An integer value is read.
See also: Poco::JSON::Handler::value()
value
void value(
unsigned v
);
An unsigned value is read. This will only be triggered if the value cannot fit into a signed int.
See also: Poco::JSON::Handler::value()
value
void value(
Int64 v
);
A 64-bit integer value is read; it will be written to the output.
See also: Poco::JSON::Handler::value()
value
void value(
UInt64 v
);
An unsigned 64-bit integer value is read; it will be written to the output.
See also: Poco::JSON::Handler::value()
value
void value(
const std::string & value
);
A string value is read; it will be formatted and written to the output.
See also: Poco::JSON::Handler::value()
value
void value(
double d
);
A double value is read; it will be written to the output.
See also: Poco::JSON::Handler::value()
value
void value(
bool b
);
A boolean value is read; it will be written to the output.
See also: Poco::JSON::Handler::value()
Variables
JSON_PRINT_FLAT 
static const unsigned JSON_PRINT_FLAT = 0;