RWDBCollectableExpr Class Reference
[Expressions]

Adds RWCollectable semantics to RWDBExpr. More...

#include <rw/db/expr.h>

Inheritance diagram for RWDBCollectableExpr:

List of all members.

Public Member Functions
	RWDBCollectableExpr (const RWDBExpr &expr)
unsigned	hash () const
bool	isEqual (const RWCollectable *expr) const

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Detailed Description

RWDBCollectableExpr adds RWCollectable semantics to RWDBExpr. The DB Interface Module uses RWDBCollectableExpr internally to store lists of RWDBExpr objects. Applications requiring similar functionality can do the same.

Synopsis

 #include <rw/db/expr.h>

Related Classes

RWDBCollectableExpr is a special case of RWDBExpr. See RWDBExpr for details. See your Essential Tools Module documentation for details about RWCollectable.

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Constructor & Destructor Documentation

RWDBCollectableExpr::RWDBCollectableExpr

(

const RWDBExpr &

expr

)

Creates an RWDBCollectableExpr from the given expr.

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Member Function Documentation

unsigned RWDBCollectableExpr::hash

(

)

const [virtual]

Returns asString().hash().

Reimplemented from RWCollectable.

bool RWDBCollectableExpr::isEqual

(

const RWCollectable *

expr

)

const [virtual]

Dereferences expr as a pointer to RWDBCollectableExpr and compares the result of its asString() to the result of self's asString().

Reimplemented from RWCollectable.