本文整理汇总了C++中BSONObjBuilder::appendUndefined方法的典型用法代码示例。如果您正苦于以下问题：C++ BSONObjBuilder::appendUndefined方法的具体用法？C++ BSONObjBuilder::appendUndefined怎么用？C++ BSONObjBuilder::appendUndefined使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类BSONObjBuilder的用法示例。
在下文中一共展示了BSONObjBuilder::appendUndefined方法的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: append
void append( BSONObjBuilder& b , string name , jsval val , BSONType oldType = EOO , int depth=0 ) {
//cout << "name: " << name << "\t" << typeString( val ) << " oldType: " << oldType << endl;
switch ( JS_TypeOfValue( _context , val ) ) {
case JSTYPE_VOID:
b.appendUndefined( name.c_str() );
break;
case JSTYPE_NULL:
b.appendNull( name.c_str() );
break;
case JSTYPE_NUMBER: {
double d = toNumber( val );
if ( oldType == NumberInt && ((int)d) == d )
b.append( name.c_str() , (int)d );
else
b.append( name.c_str() , d );
break;
}
case JSTYPE_STRING:
b.append( name.c_str() , toString( val ) );
break;
case JSTYPE_BOOLEAN:
b.appendBool( name.c_str() , toBoolean( val ) );
break;
case JSTYPE_OBJECT: {
JSObject * o = JSVAL_TO_OBJECT( val );
if ( ! o || o == JSVAL_NULL ) {
b.appendNull( name.c_str() );
}
else if ( ! appendSpecialDBObject( this , b , name , val , o ) ) {
BSONObj sub = toObject( o , depth );
if ( JS_IsArrayObject( _context , o ) ) {
b.appendArray( name.c_str() , sub );
}
else {
b.append( name.c_str() , sub );
}
}
break;
}
case JSTYPE_FUNCTION: {
string s = toString(val);
if ( s[0] == '/' ) {
appendRegex( b , name , s );
}
else {
b.appendCode( name.c_str() , getFunctionCode( val ).c_str() );
}
break;
}
default:
uassert( 10217 , (string)"can't append field. name:" + name + " type: " + typeString( val ) , 0 );
}
}示例2: BtreeKeyGenerator
BtreeKeyGeneratorV1::BtreeKeyGeneratorV1(vector<const char*> fieldNames,
vector<BSONElement> fixed, bool isSparse)
: BtreeKeyGenerator(fieldNames, fixed, isSparse) {
BSONObjBuilder b;
b.appendUndefined( "" );
_undefinedObj = b.obj();
_undefinedElt = _undefinedObj.firstElement();
}示例3: _init
void IndexSpec::_init() {
verify( keyPattern.objsize() );
// some basics
_nFields = keyPattern.nFields();
_sparse = info["sparse"].trueValue();
uassert( 13529 , "sparse only works for single field keys" , ! _sparse || _nFields );
{
// build _nullKey
BSONObjBuilder b;
BSONObjIterator i( keyPattern );
while( i.more() ) {
BSONElement e = i.next();
_fieldNames.push_back( e.fieldName() );
_fixed.push_back( BSONElement() );
b.appendNull( "" );
}
_nullKey = b.obj();
}
{
// _nullElt
BSONObjBuilder b;
b.appendNull( "" );
_nullObj = b.obj();
_nullElt = _nullObj.firstElement();
}
{
// _undefinedElt
BSONObjBuilder b;
b.appendUndefined( "" );
_undefinedObj = b.obj();
_undefinedElt = _undefinedObj.firstElement();
}
{
// handle plugins
string pluginName = IndexPlugin::findPluginName( keyPattern );
if ( pluginName.size() ) {
IndexPlugin * plugin = IndexPlugin::get( pluginName );
if ( ! plugin ) {
log() << "warning: can't find plugin [" << pluginName << "]" << endl;
}
else {
_indexType.reset( plugin->generate( this ) );
}
}
}
_finishedInit = true;
}示例4: native_sleep
static BSONObj native_sleep( const mongo::BSONObj& args, void* data ) {
uassert( 16259,
"sleep takes a single numeric argument -- sleep(milliseconds)",
args.nFields() == 1 && args.firstElement().isNumber() );
sleepmillis( static_cast<long long>( args.firstElement().number() ) );
BSONObjBuilder b;
b.appendUndefined( "" );
return b.obj();
}示例5: ixmGetUndefineKeyObj
/*
IXM Tool functions
*/
BSONObj ixmGetUndefineKeyObj( INT32 fieldNum )
{
static BSONObj s_undefineKeys[ IXM_MAX_PREALLOCATED_UNDEFKEY ] ;
static BOOLEAN s_init = FALSE ;
static ossSpinXLatch s_latch ;
if ( FALSE == s_init )
{
s_latch.get() ;
if ( FALSE == s_init )
{
for ( SINT32 i = 0; i < IXM_MAX_PREALLOCATED_UNDEFKEY ; ++i )
{
BSONObjBuilder b ;
for ( SINT32 j = 0; j <= i; ++j )
{
b.appendUndefined("") ;
}
s_undefineKeys[i] = b.obj() ;
}
s_init = TRUE ;
}
s_latch.release() ;
}
if ( fieldNum > 0 && fieldNum <= IXM_MAX_PREALLOCATED_UNDEFKEY )
{
return s_undefineKeys[ fieldNum - 1 ] ;
}
else
{
BSONObjBuilder b ;
for ( INT32 i = 0; i < fieldNum; ++i )
{
b.appendUndefined("") ;
}
return b.obj() ;
}
}示例6: objIt
void S2AccessMethod::getLiteralKeysArray(const BSONObj& obj, BSONObjSet* out) const {
BSONObjIterator objIt(obj);
if (!objIt.more()) {
// Empty arrays are indexed as undefined.
BSONObjBuilder b;
b.appendUndefined("");
out->insert(b.obj());
} else {
// Non-empty arrays are exploded.
while (objIt.more()) {
BSONObjBuilder b;
b.appendAs(objIt.next(), "");
out->insert(b.obj());
}
}
}示例7: makeUndefined
BSONObj makeUndefined() {
BSONObjBuilder b;
b.appendUndefined( "" );
return b.obj();
}示例8: if
//.........这里部分代码省略.........
return;
}
if ( value->IsArray() ){
BSONObj sub = v8ToMongo( value->ToObject() );
b.appendArray( sname.c_str() , sub );
return;
}
if ( value->IsDate() ){
b.appendDate( sname.c_str() , Date_t(v8::Date::Cast( *value )->NumberValue()) );
return;
}
if ( value->IsExternal() )
return;
if ( value->IsObject() ){
// The user could potentially modify the fields of these special objects,
// wreaking havoc when we attempt to reinterpret them. Not doing any validation
// for now...
Local< v8::Object > obj = value->ToObject();
if ( obj->InternalFieldCount() && obj->GetInternalField( 0 )->IsNumber() ) {
switch( obj->GetInternalField( 0 )->ToInt32()->Value() ) { // NOTE Uint32's Value() gave me a linking error, so going with this instead
case Timestamp:
b.appendTimestamp( sname.c_str(),
Date_t( v8::Date::Cast( *obj->Get( v8::String::New( "time" ) ) )->NumberValue() ),
obj->Get( v8::String::New( "i" ) )->ToInt32()->Value() );
return;
case MinKey:
b.appendMinKey( sname.c_str() );
return;
case MaxKey:
b.appendMaxKey( sname.c_str() );
return;
default:
assert( "invalid internal field" == 0 );
}
}
string s = toSTLString( value );
if ( s.size() && s[0] == '/' ){
s = s.substr( 1 );
string r = s.substr( 0 , s.rfind( "/" ) );
string o = s.substr( s.rfind( "/" ) + 1 );
b.appendRegex( sname.c_str() , r.c_str() , o.c_str() );
}
else if ( value->ToObject()->GetPrototype()->IsObject() &&
value->ToObject()->GetPrototype()->ToObject()->HasRealNamedProperty( v8::String::New( "isObjectId" ) ) ){
OID oid;
oid.init( toSTLString( value ) );
b.appendOID( sname.c_str() , &oid );
}
else if ( !value->ToObject()->GetHiddenValue( v8::String::New( "__NumberLong" ) ).IsEmpty() ) {
// TODO might be nice to potentially speed this up with an indexed internal
// field, but I don't yet know how to use an ObjectTemplate with a
// constructor.
unsigned long long val =
( (unsigned long long)( value->ToObject()->Get( v8::String::New( "top" ) )->ToInt32()->Value() ) << 32 ) +
(unsigned)( value->ToObject()->Get( v8::String::New( "bottom" ) )->ToInt32()->Value() );
b.append( sname.c_str(), (long long)val );
}
else if ( !value->ToObject()->GetHiddenValue( v8::String::New( "__DBPointer" ) ).IsEmpty() ) {
OID oid;
oid.init( toSTLString( value->ToObject()->Get( v8::String::New( "id" ) ) ) );
string ns = toSTLString( value->ToObject()->Get( v8::String::New( "ns" ) ) );
b.appendDBRef( sname.c_str(), ns.c_str(), oid );
}
else if ( !value->ToObject()->GetHiddenValue( v8::String::New( "__BinData" ) ).IsEmpty() ) {
int len = obj->Get( v8::String::New( "len" ) )->ToInt32()->Value();
v8::String::Utf8Value data( obj->Get( v8::String::New( "data" ) ) );
const char *dataArray = *data;
assert( data.length() == len );
b.appendBinData( sname.c_str(),
len,
mongo::BinDataType( obj->Get( v8::String::New( "type" ) )->ToInt32()->Value() ),
dataArray );
} else {
BSONObj sub = v8ToMongo( value->ToObject() );
b.append( sname.c_str() , sub );
}
return;
}
if ( value->IsBoolean() ){
b.appendBool( sname.c_str() , value->ToBoolean()->Value() );
return;
}
else if ( value->IsUndefined() ){
b.appendUndefined( sname.c_str() );
return;
}
else if ( value->IsNull() ){
b.appendNull( sname.c_str() );
return;
}
cout << "don't know how to convert to mongo field [" << name << "]\t" << value << endl;
}