Literal Class Reference

Represents the literals of the ClassAd language, such as integers, reals, booleans, strings, undefined and real. More...

#include <literals.h>

Inheritance diagram for Literal:

[legend]Collaboration diagram for Literal:

[legend]List of all members.

Public Member Functions
	~Literal ()
	Destructor.
	Literal (const Literal &literal)
	Copy constructor.
Literal &	operator= (const Literal &literal)
	Assignment operator.
virtual ExprTree *	Copy () const
	Make a deep copy.
void	CopyFrom (const Literal &literal)
void	GetComponents (Value &v, Value::NumberFactor &f) const
	Deconstructor to get the components of the literal.
void	GetValue (Value &v) const
	Deconstructor to get the encapsulated value.
virtual bool	SameAs (const ExprTree *tree) const
	Is this ExprTree the same as the tree?
Static Public Member Functions
Literal *	MakeAbsTime (abstime_t *now=NULL)
	Create an absolute time literal.
Literal *	MakeAbsTime (std::string timestr)
Literal *	MakeRelTime (time_t secs=-1)
	Create a relative time literal.
Literal *	MakeRelTime (time_t t1, time_t t2)
	Create a relative time interval by subtracting two absolute times.
Literal *	MakeRelTime (std::string str)
Literal *	MakeReal (std::string realstr)
Literal *	MakeLiteral (const Value &v, Value::NumberFactor f=Value::NO_FACTOR)
	Factory method to construct a Literal.
int	findOffset (time_t epochsecs)
Protected Member Functions
	Literal ()
	Constructor.
Friends
class	FunctionCall
class	ClassAd
class	ExprList
class	Operation
bool	operator== (Literal &literal1, Literal &literal2)

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Detailed Description

Represents the literals of the ClassAd language, such as integers, reals, booleans, strings, undefined and real.

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Member Function Documentation

void Literal::GetComponents (  Value &  v, Value::NumberFactor &  f )  const

Deconstructor to get the components of the literal. Parameters: v  The encapsulated value f  The number factor (invalid if v is non-numeric)

void Literal::GetValue (  Value &  v  )  const

Deconstructor to get the encapsulated value. Parameters: v  The value encapsulated by the literal

Literal* Literal::MakeAbsTime (  abstime_t *  now = NULL  )  [static]

Create an absolute time literal. Parameters: now  The time in UNIX epoch. If a value of NULL is passed in the system's current time will be used. Returns: The literal expression.

Literal* Literal::MakeLiteral (  const Value &  v, Value::NumberFactor  f = Value::NO_FACTOR )  [static]

Factory method to construct a Literal. Parameters: v  The value to convert to a literal. (Cannot be a classad or list value.) f  The number factor (B, K, M, G, T) --- ignored for non-numeric values. Returns: The constructed literal expression

Literal* Literal::MakeRelTime (  time_t  t1, time_t  t2 )  [static]

Create a relative time interval by subtracting two absolute times. Parameters: t1  The end time of the interval. If -1 is passed in, the system's current time will be used. t2  the start time of the interval If -1 is passed in, the system's current time will be used. Returns: The literal expression of the relative time (t1 - t2).

Literal* Literal::MakeRelTime (  time_t  secs = -1  )  [static]

Create a relative time literal. Parameters: secs  The number of seconds. If a value of -1 is passed in the time since midnight (i.e., the daytime) is used. Returns: The literal expression.

virtual bool Literal::SameAs (  const ExprTree *  tree  )  const [virtual]

Is this ExprTree the same as the tree? Returns: true if it is the same, false otherwise Implements ExprTree.

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The documentation for this class was generated from the following file:

• literals.h