/* This Source Code Form is subject to the terms of the Mozilla Public
* License , v . 2 . 0 . If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozIStorageBaseStatement.idl"
%{C++
#include "mozilla/DebugOnly.h"
%}
[ptr] native octetPtr(uint8_t);
/**
* A SQL statement that can be used for both synchronous and asynchronous
* purposes .
*/
[scriptable, builtinclass, uuid(
5 f567c35-
6 c32-
4140 -
828 c-
683 ea49cfd3a)]
interface mozIStorageStatement : mozIStorageBaseStatement {
/**
* Create a clone of this statement , by initializing a new statement
* with the same connection and same SQL statement as this one . It
* does not preserve statement state ; that is , if a statement is
* being executed when it is cloned , the new statement will not be
* executing .
*/
mozIStorageStatement clone();
/*
* Number of parameters
*/
readonly attribute
unsigned long parameterCount;
/**
* Name of nth parameter , if given
*/
AUTF8String getParameterName(in
unsigned long aParamIndex);
/**
* Returns the index of the named parameter .
*
* @ param aName
* The name of the parameter you want the index for . This does not
* include the leading ' : ' .
* @ return the index of the named parameter .
*/
unsigned long getParameterIndex(in AUTF8String aName);
/**
* Number of columns returned
*/
readonly attribute
unsigned long columnCount;
/**
* Name of nth column
*/
AUTF8String getColumnName(in
unsigned long aColumnIndex);
/**
* Obtains the index of the column with the specified name .
*
* @ param aName
* The name of the column .
* @ return The index of the column with the specified name .
*/
unsigned long getColumnIndex(in AUTF8String aName);
/**
* Reset parameters / statement execution
*/
void reset();
/**
* Execute the query , ignoring any results . This is accomplished by
* calling executeStep ( ) once , and then calling reset ( ) .
*
* Error and last insert info , etc . are available from
* the mozStorageConnection .
*/
void execute();
/**
* Execute a query , using any currently - bound parameters . Reset
* must be called on the statement after the last call of
* executeStep .
*
* @ return a boolean indicating whether there are more rows or not ;
* row data may be accessed using mozIStorageValueArray methods on
* the statement .
*/
boolean executeStep();
/**
* Execute a query , using any currently - bound parameters . Reset is called
* when no more data is returned . This method is only available to JavaScript
* consumers .
*
* @ deprecated As of Mozilla 1 . 9 . 2 in favor of executeStep ( ) .
*
* @ return a boolean indicating whether there are more rows or not .
*
* [ deprecated ] boolean step ( ) ;
*/
/**
* Obtains the current list of named parameters , which are settable . This
* property is only available to JavaScript consumers .
*
* readonly attribute mozIStorageStatementParams params ;
*/
/**
* Obtains the current row , with access to all the data members by name . This
* property is only available to JavaScript consumers .
*
* readonly attribute mozIStorageStatementRow row ;
*/
//////////////////////////////////////////////////////////////////////////////
//// Copied contents of mozIStorageValueArray
/**
* These type values are returned by getTypeOfIndex
* to indicate what type of value is present at
* a given column .
*/
const long VALUE_TYPE_NULL =
0 ;
const long VALUE_TYPE_INTEGER =
1 ;
const long VALUE_TYPE_FLOAT =
2 ;
const long VALUE_TYPE_TEXT =
3 ;
const long VALUE_TYPE_BLOB =
4 ;
/**
* The number of entries in the array ( each corresponding to a column in the
* database row )
*/
readonly attribute
unsigned long numEntries;
/**
* Indicate the data type of the current result row for the the given column .
* SQLite will perform type conversion if you ask for a value as a different
* type than it is stored as .
*
* @ param aIndex
* 0 - based column index .
* @ return The type of the value at the given column index ; one of
* VALUE_TYPE_NULL , VALUE_TYPE_INTEGER , VALUE_TYPE_FLOAT ,
* VALUE_TYPE_TEXT , VALUE_TYPE_BLOB .
*/
long getTypeOfIndex(in
unsigned long aIndex);
/**
* Retrieve the contents of a column from the current result row as a
* variant .
*
* @ param aIndex
* 0 - based colummn index .
* @ return A variant with the type of the column value .
*/
nsIVariant getVariant(in
unsigned long aIndex);
/**
* Retrieve the contents of a column from the current result row as an
* integer .
*
* @ param aIndex
* 0 - based colummn index .
* @ return Column value interpreted as an integer per type conversion rules .
* @ {
*/
long getInt32(in
unsigned long aIndex);
long long getInt64(in
unsigned long aIndex);
/** @} */
/**
* Retrieve the contents of a column from the current result row as a
* floating point double .
*
* @ param aIndex
* 0 - based colummn index .
* @ return Column value interpreted as a double per type conversion rules .
*/
double getDouble(in
unsigned long aIndex);
/**
* Retrieve the contents of a column from the current result row as a
* string .
*
* @ param aIndex
* 0 - based colummn index .
* @ return The value for the result column interpreted as a string . If the
* stored value was NULL , you will get an empty string with IsVoid set
* to distinguish it from an explicitly set empty string .
* @ {
*/
AUTF8String getUTF8String(in
unsigned long aIndex);
AString getString(in
unsigned long aIndex);
/** @} */
/**
* Retrieve the contents of a column from the current result row as a
* blob .
*
* @ param aIndex
* 0 - based colummn index .
* @ param [ out ] aDataSize
* The number of bytes in the blob .
* @ param [ out ] aData
* The contents of the BLOB . This will be NULL if aDataSize = = 0 .
*/
void getBlob(in
unsigned long aIndex, out
unsigned long aDataSize, [array,size_is(aDataSi
ze)] out octet aData);
/**
* Retrieve the contents of a Blob column from the current result row as a
* string .
*
* @ param aIndex
* 0 - based colummn index .
* @ return The value for the result Blob column interpreted as a String .
* No encoding conversion is performed .
*/
AString getBlobAsString(in unsigned long aIndex);
/**
* Retrieve the contents of a Blob column from the current result row as a
* UTF8 string .
*
* @ param aIndex
* 0 - based colummn index .
* @ return The value for the result Blob column interpreted as a UTF8 String .
* No encoding conversion is performed .
*/
AUTF8String getBlobAsUTF8String(in unsigned long aIndex);
/**
* Check whether the given column in the current result row is NULL .
*
* @ param aIndex
* 0 - based colummn index .
* @ return true if the value for the result column is null .
*/
boolean getIsNull(in unsigned long aIndex);
/**
* Returns a shared string pointer .
*
* @ param aIndex
* 0 - based colummn index .
* @ param aByteLength
* The number of bytes in the string or blob . This is the same as the
* number of characters for UTF - 8 strings , and twice the number of
* characters for UTF - 16 strings .
* @ param aResult
* A pointer to the string or blob .
*/
[noscript] void getSharedUTF8String(in unsigned long aIndex, out unsigned long aByteLength, [shared,retval] out string aResult);
[noscript] void getSharedString(in unsigned long aIndex, out unsigned long aByteLength, [shared,retval] out wstring aResult);
[noscript] void getSharedBlob(in unsigned long aIndex, out unsigned long aByteLength, [shared,retval] out octetPtr aResult);
/**
* Getters for native code that return their values as
* the return type , for convenience and sanity .
*
* Not virtual ; no vtable bloat .
*/
%{C++
inline int32_t AsInt32(uint32_t idx) {
int32_t v = 0 ;
mozilla::DebugOnly<nsresult> rv = GetInt32(idx, &v);
MOZ_ASSERT(NS_SUCCEEDED(rv) || IsNull(idx),
"Getting value failed, wrong column index?" );
return v;
}
inline int64_t AsInt64(uint32_t idx) {
int64_t v = 0 ;
mozilla::DebugOnly<nsresult> rv = GetInt64(idx, &v);
MOZ_ASSERT(NS_SUCCEEDED(rv) || IsNull(idx),
"Getting value failed, wrong column index?" );
return v;
}
inline double AsDouble(uint32_t idx) {
double v = 0 .0 ;
mozilla::DebugOnly<nsresult> rv = GetDouble(idx, &v);
MOZ_ASSERT(NS_SUCCEEDED(rv) || IsNull(idx),
"Getting value failed, wrong column index?" );
return v;
}
inline const char * AsSharedUTF8String(uint32_t idx, uint32_t *len) {
const char *str = nullptr;
*len = 0 ;
mozilla::DebugOnly<nsresult> rv = GetSharedUTF8String(idx, len, &str);
MOZ_ASSERT(NS_SUCCEEDED(rv) || IsNull(idx),
"Getting value failed, wrong column index?" );
return str;
}
inline const char16_t* AsSharedWString(uint32_t idx, uint32_t *len) {
const char16_t *str = nullptr;
*len = 0 ;
mozilla::DebugOnly<nsresult> rv = GetSharedString(idx, len, &str);
MOZ_ASSERT(NS_SUCCEEDED(rv) || IsNull(idx),
"Getting value failed, wrong column index?" );
return str;
}
inline const uint8_t* AsSharedBlob(uint32_t idx, uint32_t *len) {
const uint8_t *blob = nullptr;
*len = 0 ;
mozilla::DebugOnly<nsresult> rv = GetSharedBlob(idx, len, &blob);
MOZ_ASSERT(NS_SUCCEEDED(rv) || IsNull(idx),
"Getting value failed, wrong column index?" );
return blob;
}
inline bool IsNull(uint32_t idx) {
bool b = false ;
mozilla::DebugOnly<nsresult> rv = GetIsNull(idx, &b);
MOZ_ASSERT(NS_SUCCEEDED(rv),
"Getting value failed, wrong column index?" );
return b;
}
%}
};
Messung V0.5 in Prozent C=85 H=97 G=91
¤ Dauer der Verarbeitung: 0.14 Sekunden
(vorverarbeitet am 2026-08-25)
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