Public Member Functions | Static Public Member Functions | Protected Member Functions | Friends

Literal Class Reference

#include <literals.h>

Inheritance diagram for Literal:
ExprTree ExprTree

List of all members.

Public Member Functions

virtual ~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
void GetValue (Value &v) const
virtual bool SameAs (const ExprTree *tree) const
virtual ~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
void GetValue (Value &v) const
virtual bool SameAs (const ExprTree *tree) const

Static Public Member Functions

static Literal * MakeAbsTime (abstime_t *now=NULL)
static Literal * MakeAbsTime (std::string timestr)
static Literal * MakeRelTime (time_t secs=-1)
static Literal * MakeRelTime (time_t t1, time_t t2)
static Literal * MakeRelTime (std::string str)
static Literal * MakeReal (std::string realstr)
static Literal * MakeLiteral (const Value &v, Value::NumberFactor f=Value::NO_FACTOR)
static int findOffset (time_t epochsecs)
static Literal * MakeAbsTime (abstime_t *now=NULL)
static Literal * MakeAbsTime (std::string timestr)
static Literal * MakeRelTime (time_t secs=-1)
static Literal * MakeRelTime (time_t t1, time_t t2)
static Literal * MakeRelTime (std::string str)
static Literal * MakeReal (std::string realstr)
static Literal * MakeLiteral (const Value &v, Value::NumberFactor f=Value::NO_FACTOR)
static int findOffset (time_t epochsecs)

Protected Member Functions

 Literal ()
 Constructor.
 Literal ()
 Constructor.

Friends

class FunctionCall
class ClassAd
class ExprList
class Operation
bool operator== (Literal &literal1, Literal &literal2)
bool operator== (Literal &literal1, Literal &literal2)

Detailed Description

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

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::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
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.
static 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
static 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
static 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.
static 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.
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).
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.

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.

The documentation for this class was generated from the following files:
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Generated on Fri Apr 8 2011 18:40:30 for ClassAds by  doxygen 1.7.1