Interface mozIStorageRowType

Hierarchy

Properties

numEntries

Methods

AddRef QueryInterface Release getBlob getBlobAsString getBlobAsUTF8String getDouble getInt32 getInt64 getIsNull getResultByIndex getResultByName getSharedBlob getSharedString getSharedUTF8String getString getTypeOfIndex getUTF8String

Properties

Readonly numEntries

numEntries: number

numEntries

number of entries in the array (each corresponding to a column in the database row)

Methods

AddRef

  • Increases the reference count for this interface. The associated instance will not be deleted unless the reference count is returned to zero.

    Returns

    The resulting reference count.

    Returns number

QueryInterface

  • Parameters

    • aIID: object
    • Optional aInstancePtr: object

    Returns any

  • A run time mechanism for interface discovery.

    Returns

    NS_OK if the interface is supported by the associated instance, NS_NOINTERFACE if it is not.

    aInstancePtr must not be null.

    Parameters

    • aIID: object

      [in] A requested interface IID

    • aInstancePtr: object

      [out] A pointer to an interface pointer to receive the result.

    Returns void

Release

  • Decreases the reference count for this interface. Generally, if the reference count returns to zero, the associated instance is deleted.

    Returns

    The resulting reference count.

    Returns number

getBlob

  • Parameters

    • aIndex: number
    • aDataSize: number
    • aData: number

    Returns void

getBlobAsString

getBlobAsUTF8String

getDouble

getInt32

  • 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.

    Parameters

    • aIndex: number

    Returns number

getInt64

getIsNull

getResultByIndex

  • Obtains the result of a given column specified by aIndex.

    Returns

    the result of the specified column.

    Parameters

    • aIndex: number

      Zero-based index of the result to get from the tuple.

    Returns nsIVariant

getResultByName

  • Obtains the result of a given column specified by aName.

    Returns

    the result of the specified column.

    Note

    The name of a result column is the value of the "AS" clause for that column. If there is no AS clause then the name of the column is unspecified and may change from one release to the next.

    Parameters

    • aName: string

      Name of the result to get from the tuple.

    Returns nsIVariant

getSharedBlob

  • Parameters

    • aIndex: number
    • aByteLength: number
    • aResult: octetPtr

    Returns void

getSharedString

  • Parameters

    • aIndex: number
    • aByteLength: number
    • aResult: wstring

    Returns void

getSharedUTF8String

  • Returns a shared string pointer.

    Parameters

    • aIndex: number

      0-based colummn index.

    • aByteLength: number

      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.

    • aResult: string

      A pointer to the string or blob.

    Returns void

getString

getTypeOfIndex

  • 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.

    Parameters

    • aIndex: number

    Returns number

getUTF8String

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