Class: SQLite3::Value

Inherits:
Object
  • Object
show all
Defined in:
lib/sqlite3/value.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(db, handle) ⇒ Value

Returns a new instance of Value.



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# File 'lib/sqlite3/value.rb', line 8

def initialize(db, handle)
  @handle = handle
end

Instance Attribute Details

#handle ⇒ Object (readonly)

Returns the value of attribute handle.



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# File 'lib/sqlite3/value.rb', line 6

def handle
  @handle
end

Instance Method Details

#length(utf16 = false) ⇒ Object Also known as: size 



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# File 'lib/sqlite3/value.rb', line 21

def length(utf16=false)
  if utf16
    Driver.sqlite3_value_bytes16(@handle)
  else
    Driver.sqlite3_value_bytes(@handle)
  end
end

#native ⇒ Object 



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# File 'lib/sqlite3/value.rb', line 61

def native
  case Driver.sqlite3_value_type(@handle)
  when SQLITE_INTEGER then to_int64
  when SQLITE_FLOAT   then to_f
  when SQLITE_TEXT    then to_s
  when SQLITE_BLOB    then to_blob
  when SQLITE_NULL    then nil
  end
end

#null? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sqlite3/value.rb', line 12

def null?
  type == :null
end

#to_blob ⇒ Object 



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# File 'lib/sqlite3/value.rb', line 16

def to_blob
  bytes = size
  Blob.new(Driver.sqlite3_value_blob(@handle).to_s(bytes))
end

#to_f ⇒ Object 



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# File 'lib/sqlite3/value.rb', line 31

def to_f
  Driver.sqlite3_value_double(@handle)
end

#to_i ⇒ Object 



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# File 'lib/sqlite3/value.rb', line 35

def to_i
  Driver.sqlite3_value_int(@handle)
end

#to_int64 ⇒ Object 



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# File 'lib/sqlite3/value.rb', line 39

def to_int64
  Driver.sqlite3_value_int64(@handle)
end

#to_s(utf16 = false) ⇒ Object 



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# File 'lib/sqlite3/value.rb', line 43

def to_s(utf16=false)
  if utf16
    Driver.sqlite3_result_text16(@handle).to_s
  else
    Driver.sqlite3_value_text(@handle).to_s
  end
end

#type ⇒ Object 



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# File 'lib/sqlite3/value.rb', line 51

def type
  case Driver.sqlite3_value_type(@handle)
    when SQLITE_INTEGER then :int
    when SQLITE_FLOAT   then :float
    when SQLITE_TEXT    then :text
    when SQLITE_BLOB    then :blob
    when SQLITE_NULL    then :null
  end
end