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cuberite-2a/src/SettingsRepositoryInterface.h

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#pragma once
class cSettingsRepositoryInterface
{
public:
enum errors
{
noID = -1,
};
virtual ~cSettingsRepositoryInterface() = default;
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/** Returns true iff the specified key exists */
virtual bool KeyExists(const AString keyname) const = 0;
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/** Returns true iff the specified value exists. */
virtual bool HasValue(const AString & a_KeyName, const AString & a_ValueName) const = 0;
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/** Add a key name. Return value is not required to mean anything */
virtual int AddKeyName(const AString & keyname) = 0;
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/** Add a key comment, will always fail if the repository does not support comments */
virtual bool AddKeyComment(const AString & keyname, const AString & comment) = 0;
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/** Return a key comment, returns "" for repositories that do not return comments */
virtual AString GetKeyComment(const AString & keyname, const int commentID) const = 0;
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/** Delete a key comment, will always fail if the repository does not support comments */
virtual bool DeleteKeyComment(const AString & keyname, const int commentID) = 0;
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/** Adds a new value to the specified key.
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If a value of the same name already exists, creates another one */
virtual void AddValue (const AString & a_KeyName, const AString & a_ValueName, const AString & a_Value) = 0;
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/** returns a vector containing a name, value pair for each value under the key */
virtual std::vector<std::pair<AString, AString>> GetValues(AString a_keyName) = 0;
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/** Get the value at the specified key and value, returns defValue on failure */
virtual AString GetValue (const AString & keyname, const AString & valuename, const AString & defValue = "") const = 0;
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/** Gets the value; if not found, write the default to the repository */
virtual AString GetValueSet (const AString & keyname, const AString & valuename, const AString & defValue = "") = 0;
virtual int GetValueSetI(const AString & keyname, const AString & valuename, const int defValue = 0) = 0;
virtual Int64 GetValueSetI(const AString & keyname, const AString & valuename, const Int64 defValue = 0) = 0;
virtual bool GetValueSetB(const AString & keyname, const AString & valuename, const bool defValue = false) = 0;
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/** Overwrites the value of the key, value pair
Specify the optional parameter as false if you do not want the value created if it doesn't exist.
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Returns true if value set, false otherwise. */
virtual bool SetValue (const AString & a_KeyName, const AString & a_ValueName, const AString & a_Value, const bool a_CreateIfNotExists = true) = 0;
virtual bool SetValueI(const AString & a_KeyName, const AString & a_ValueName, const int a_Value, const bool a_CreateIfNotExists = true) = 0;
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/** Deletes the specified key, value pair */
virtual bool DeleteValue(const AString & keyname, const AString & valuename) = 0;
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/** Writes the changes to the backing store, if the repository has one */
virtual bool Flush() = 0;
};