Functions in the state category allow you to do things with side-effects in the function flow. Specifically, they allow you to save or load values of named variables to thread-local registers. These work best when used with non-async activities, since the normal statement grouping allows you to share data between statements in the sequence. It is not advised to use these with async activities.

When using these functions, be careful that you call them when needed. For example, if you have a named binding which will save a value, that action only occurs if some statement with this named binding is used.

For example, if you have an account records and transaction records, where you want to save the account identifier to use within the transaction inserts, you must ensure that each account binding is used within the thread first.

Clear

Clears the per-thread map which is used by the Expr function.

• Object -> Clear() -> Object

  • notes: Clear all named entries from the per-thread map.

  • example: Clear()

  • clear all thread-local variables

• Object -> Clear(String[]...: names) -> Object

  • notes: Clear the specified names from the per-thread map. @param names The names to be removed from the map.

  • example: Clear('foo')

  • clear the thread-local variable 'foo'

  • example: Clear('foo','bar')

  • clear the thread-local variables 'foo' and 'bar'

• long -> Clear() -> long

  • notes: Clear all named entries from the per-thread map.

  • example: Clear()

  • clear all thread-local variables

• long -> Clear(String[]...: names) -> long

  • notes: Clear the specified names from the per-thread map. @param names The names to be removed from the map.

  • example: Clear('foo')

  • clear the thread-local variable 'foo'

  • example: Clear('foo','bar')

  • clear the thread-local variables 'foo' and 'bar'

Load

Load a named value from the per-thread state map. The previous input value will be forgotten, and the named value will replace it before the next function in the chain.

• String -> Load(String: name) -> String

  • example: Load('foo')
  • for the current thread, load a String value from the named variable

• String -> Load(String: name, String: defaultvalue) -> String

  • example: Load('foo','track05')
  • for the current thread, load a String value from the named variable, or teh default value if the variable is not yet defined.

• String -> Load(function.Function<Object,Object>: nameFunc) -> String

  • example: Load(NumberNameToString())
  • for the current thread, load a String value from the named variable, where the variable name is provided by a function

• String -> Load(function.Function<Object,Object>: nameFunc, String: defaultValue) -> String

  • example: Load(NumberNameToString(),'track05')
  • for the current thread, load a String value from the named variable, where the variable name is provided by a function, or the default value if the variable is not yet defined.

• int -> Load(String: name) -> int

  • example: Load('foo')
  • for the current thread, load an int value from the named variable

• int -> Load(String: name, int: defaultValue) -> int

  • example: Load('foo',42)
  • for the current thread, load an int value from the named variable, or return the default value if it is undefined.

• int -> Load(function.Function<Object,Object>: nameFunc) -> int

  • example: Load(NumberNameToString())
  • for the current thread, load an int value from the named variable, where the variable name is provided by a function.

• int -> Load(function.Function<Object,Object>: nameFunc, int: defaultValue) -> int

  • example: Load(NumberNameToString(),42)
  • for the current thread, load an int value from the named variable, where the variable name is provided by a function, or the default value if the named variable is undefined.

• double -> Load(String: name) -> double

  • example: Load('foo')
  • for the current thread, load a double value from the named variable

• double -> Load(String: name, double: defaultValue) -> double

  • example: Load('foo',432.0D)
  • for the current thread, load a double value from the named variable, or the defaultvalue if it is not yet defined.

• double -> Load(function.Function<Object,Object>: nameFunc) -> double

  • example: Load(NumberNameToString())
  • for the current thread, load a double value from the named variable, where the variablename is provided by a function.

• double -> Load(function.Function<Object,Object>: nameFunc, double: defaultValue) -> double

  • example: Load(NumberNameToString(),1234.5D)
  • for the current thread, load a double value from the named variable, where the variablename is provided by a function, or the default value if the named value is not yet defined.

• long -> Load(String: name) -> long

  • example: Load('foo')
  • for the current thread, load a long value from the named variable

• long -> Load(String: name, long: defaultValue) -> long

  • example: Load('foo', 423L)
  • for the current thread, load a long value from the named variable, or the default value if the variable is not yet defined

• long -> Load(function.Function<Object,Object>: nameFunc) -> long

  • example: Load(NumberNameToString())
  • for the current thread, load a long value from the named variable, where the variable name is provided by the provided by a function.

• long -> Load(function.Function<Object,Object>: nameFunc, long: defaultvalue) -> long

  • example: Load(NumberNameToString(),22L)
  • for the current thread, load a long value from the named variable, where the variable name is provided by the provided by a function, or the default value if the variable is not yet defined

• long -> Load(String: name) -> Object

  • example: Load('foo')
  • for the current thread, load an Object value from the named variable

• long -> Load(function.LongFunction