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version 1.1, 2004/08/20 18:22:36
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version 1.1.2.3, 2004/08/30 17:50:10
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#ifndef Pegasus_CQLChainedIdentifier_h |
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#define Pegasus_CQLChainedIdentifier_h |
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#include <Pegasus/Common/Config.h> |
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#include <Pegasus/CQL/Linkage.h> |
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#include <Pegasus/Common/Array.h> |
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#include <Pegasus/Common/String.h> |
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#include <Pegasus/CQL/CQLIdentifier.h> |
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PEGASUS_NAMESPACE_BEGIN |
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class CQLScope; |
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/** |
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CQLChainedIdentifier class is used for parsing (not resolving) |
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the identifier portion of a CQL select statement. |
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A couple examples of a CQLIdentifier: |
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Class.EmbeddedObject.Property[3] |
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Class.Property#'OK' |
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The CQLChainedIdentifier class can parse and return each |
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section of a CQL identifier. The possible sections are: |
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class (optional) |
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zero or more embedded objects |
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property |
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Note: this must handle wildcard("*"), embedded objects, arrays, symbolic |
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constants, etc. |
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*/ |
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class PEGASUS_CQL_LINKAGE CQLChainedIdentifier |
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{ |
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public: |
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CQLChainedIdentifier(){} |
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/** constructor |
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Parses the string into the various components of a CQL identifier. |
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Throws parsing errors. |
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*/ |
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CQLChainedIdentifier(String inString); |
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CQLChainedIdentifier(CQLIdentifier & id); |
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CQLChainedIdentifier(const CQLChainedIdentifier& cid); |
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~CQLChainedIdentifier(){} |
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/** The getSubIdentifiers method |
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returns the array of subIdentifiers from a CQL SELECT |
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statement. If there are no subidentifiers, an empty array is returned. |
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Example: |
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myClass.embeddedObject.myProperty would return an array of 2 strings: |
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'myClass' and 'embeddedObject'. |
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myProperty would return an empty array. |
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*/ |
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const Array<CQLIdentifier>& getSubIdentifiers()const; |
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String toString()const; |
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void append(CQLIdentifier & id); |
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Uint32 size(); |
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Boolean prepend(CQLIdentifier & id); |
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CQLIdentifier& operator[](Uint32 index); |
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Boolean isSubChain(CQLChainedIdentifier & chain); |
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CQLIdentifier getLastIdentifier(); |
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void applyScopes(Array<CQLScope>& scopes); |
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private: |
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void parse(String & string); |
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/** The _subIdentifiers member variable is an array of Strings that are the |
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parts of the CQL identifier that were delimited by the dots (.) except |
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for the final part which is the _property member variable. |
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*/ |
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Array<CQLIdentifier> _subIdentifiers; |
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}; |
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PEGASUS_NAMESPACE_END |
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#endif /* Pegasus_CQLChainedIdentifier_h */ |
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CQLChainedIdentifier.h
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