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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /storage/mozIStorageValueArray.idl
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "nsISupports.idl"
+%{C++
+#include "mozilla/DebugOnly.h"
+%}
+
+[ptr] native octetPtr(uint8_t);
+
+/**
+ * mozIStorageValueArray wraps an array of SQL values, such as a single database
+ * row.
+ */
+[scriptable, uuid(6e6306f4-ffa7-40f5-96ca-36159ce8f431)]
+interface mozIStorageValueArray : nsISupports {
+ /**
+ * 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;
+
+ /**
+ * numEntries
+ *
+ * number of entries in the array (each corresponding to a column
+ * in the database row)
+ */
+ readonly attribute unsigned long numEntries;
+
+ /**
+ * Returns 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);
+
+ /**
+ * Obtain a value for the given entry (column) index.
+ * Due to SQLite's type conversion rules, any of these are valid
+ * for any column regardless of the column's data type. However,
+ * if the specific type matters, getTypeOfIndex should be used
+ * first to identify the column type, and then the appropriate
+ * get method should be called.
+ *
+ * If you ask for a string value for a NULL column, you will get an empty
+ * string with IsVoid set to distinguish it from an explicitly set empty
+ * string.
+ */
+ long getInt32(in unsigned long aIndex);
+ long long getInt64(in unsigned long aIndex);
+ double getDouble(in unsigned long aIndex);
+ AUTF8String getUTF8String(in unsigned long aIndex);
+ AString getString(in unsigned long aIndex);
+
+ // data will be NULL if dataSize = 0
+ void getBlob(in unsigned long aIndex, out unsigned long aDataSize, [array,size_is(aDataSize)] out octet aData);
+ AString getBlobAsString(in unsigned long aIndex);
+ AUTF8String getBlobAsUTF8String(in unsigned long aIndex);
+ 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 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;
+ }
+
+%}
+
+};