RWDBCollectableExpr

Module:  DB Interface Module   Group:  Expression Classes

                  RWCollectable
RWDBCollectableExpr
                  RWDBExpr

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Members

hash()

isEqual()

RWDBCollectableExpr()

#include <rw/db/expr.h>

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

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

RWDBCollectableExpr(const RWDBExpr& expr);

Creates an RWDBCollectableExpr from the given expr.

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NOTE -- All RWDBCollectableExpr methods other than the following are inherited.

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unsigned
hash() const;

Redefined from RWCollectable. Returns asString.hash().

bool
isEqual(const RWCollectable* expr) const;

Redefined from RWCollectable. Dereferences expr as an RWCollectableExpr* and compares the result of its asString() to the result of self's asString().

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