зеркало из https://github.com/mozilla/pjs.git
295 строки
9.0 KiB
Plaintext
295 строки
9.0 KiB
Plaintext
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* vim: sw=2 ts=2 sts=2 expandtab
|
|
* 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/Util.h"
|
|
%}
|
|
|
|
[ptr] native octetPtr(PRUint8);
|
|
|
|
/**
|
|
* A SQL statement that can be used for both synchronous and asynchronous
|
|
* purposes.
|
|
*/
|
|
[scriptable, uuid(57ec7be1-36cf-4510-b938-7d1c9ee8cec5)]
|
|
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);
|
|
|
|
/**
|
|
* Obtains the declared column type of a prepared statement.
|
|
*
|
|
* @param aParamIndex
|
|
* The zero-based index of the column who's declared type we are
|
|
* interested in.
|
|
* @return the declared index type.
|
|
*/
|
|
AUTF8String getColumnDecltype(in unsigned long aParamIndex);
|
|
|
|
/**
|
|
* 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 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(aDataSize)] out octet aData);
|
|
/**
|
|
* 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
|
|
*/
|
|
[noscript] void getSharedUTF8String(in unsigned long aIndex, out unsigned long aLength, [shared,retval] out string aResult);
|
|
[noscript] void getSharedString(in unsigned long aIndex, out unsigned long aLength, [shared,retval] out wstring aResult);
|
|
[noscript] void getSharedBlob(in unsigned long aIndex, out unsigned long aLength, [shared,retval] out octetPtr aResult);
|
|
|
|
%{C++
|
|
/**
|
|
* Getters for native code that return their values as
|
|
* the return type, for convenience and sanity.
|
|
*
|
|
* Not virtual; no vtable bloat.
|
|
*/
|
|
|
|
inline PRInt32 AsInt32(PRUint32 idx) {
|
|
PRInt32 v = 0;
|
|
mozilla::DebugOnly<nsresult> rv = GetInt32(idx, &v);
|
|
NS_ABORT_IF_FALSE(NS_SUCCEEDED(rv) || IsNull(idx),
|
|
"Getting value failed, wrong column index?");
|
|
return v;
|
|
}
|
|
|
|
inline PRInt64 AsInt64(PRUint32 idx) {
|
|
PRInt64 v = 0;
|
|
mozilla::DebugOnly<nsresult> rv = GetInt64(idx, &v);
|
|
NS_ABORT_IF_FALSE(NS_SUCCEEDED(rv) || IsNull(idx),
|
|
"Getting value failed, wrong column index?");
|
|
return v;
|
|
}
|
|
|
|
inline double AsDouble(PRUint32 idx) {
|
|
double v = 0.0;
|
|
mozilla::DebugOnly<nsresult> rv = GetDouble(idx, &v);
|
|
NS_ABORT_IF_FALSE(NS_SUCCEEDED(rv) || IsNull(idx),
|
|
"Getting value failed, wrong column index?");
|
|
return v;
|
|
}
|
|
|
|
inline const char* AsSharedUTF8String(PRUint32 idx, PRUint32 *len) {
|
|
const char *str = nsnull;
|
|
*len = 0;
|
|
mozilla::DebugOnly<nsresult> rv = GetSharedUTF8String(idx, len, &str);
|
|
NS_ABORT_IF_FALSE(NS_SUCCEEDED(rv) || IsNull(idx),
|
|
"Getting value failed, wrong column index?");
|
|
return str;
|
|
}
|
|
|
|
inline const PRUnichar* AsSharedWString(PRUint32 idx, PRUint32 *len) {
|
|
const PRUnichar *str = nsnull;
|
|
*len = 0;
|
|
mozilla::DebugOnly<nsresult> rv = GetSharedString(idx, len, &str);
|
|
NS_ABORT_IF_FALSE(NS_SUCCEEDED(rv) || IsNull(idx),
|
|
"Getting value failed, wrong column index?");
|
|
return str;
|
|
}
|
|
|
|
inline const PRUint8* AsSharedBlob(PRUint32 idx, PRUint32 *len) {
|
|
const PRUint8 *blob = nsnull;
|
|
*len = 0;
|
|
mozilla::DebugOnly<nsresult> rv = GetSharedBlob(idx, len, &blob);
|
|
NS_ABORT_IF_FALSE(NS_SUCCEEDED(rv) || IsNull(idx),
|
|
"Getting value failed, wrong column index?");
|
|
return blob;
|
|
}
|
|
|
|
inline bool IsNull(PRUint32 idx) {
|
|
bool b = PR_FALSE;
|
|
mozilla::DebugOnly<nsresult> rv = GetIsNull(idx, &b);
|
|
NS_ABORT_IF_FALSE(NS_SUCCEEDED(rv),
|
|
"Getting value failed, wrong column index?");
|
|
return b;
|
|
}
|
|
|
|
%}
|
|
};
|