A StringPool holds a set of shared strings, which reduces storage overheads and improves comparison speed when dealing with many duplicate strings. More...
#include <juce_StringPool.h>
Public Member Functions | |
StringPool () noexcept | |
Creates an empty pool. More... | |
void | garbageCollect () |
Scans the pool, and removes any strings that are unreferenced. More... | |
String | getPooledString (const char *original) |
Returns a pointer to a copy of the string that is passed in. More... | |
String | getPooledString (const String &original) |
Returns a pointer to a shared copy of the string that is passed in. More... | |
String | getPooledString (String::CharPointerType start, String::CharPointerType end) |
Returns a pointer to a copy of the string that is passed in. More... | |
String | getPooledString (StringRef original) |
Returns a pointer to a shared copy of the string that is passed in. More... | |
Static Public Member Functions | |
static StringPool & | getGlobalPool () noexcept |
Returns a shared global pool which is used for things like Identifiers, XML parsing. More... | |
Private Member Functions | |
void | garbageCollectIfNeeded () |
Private Attributes | |
uint32 | lastGarbageCollectionTime |
CriticalSection | lock |
Array< String > | strings |
A StringPool holds a set of shared strings, which reduces storage overheads and improves comparison speed when dealing with many duplicate strings.
When you add a string to a pool using getPooledString, it'll return a character array containing the same string. This array is owned by the pool, and the same array is returned every time a matching string is asked for. This means that it's trivial to compare two pooled strings for equality, as you can simply compare their pointers. It also cuts down on storage if you're using many copies of the same string.
@tags{Core}
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noexcept |
Creates an empty pool.
void juce::StringPool::garbageCollect | ( | ) |
Scans the pool, and removes any strings that are unreferenced.
You don't generally need to call this - it'll be called automatically when the pool grows large enough to warrant it.
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private |
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staticnoexcept |
Returns a shared global pool which is used for things like Identifiers, XML parsing.
String juce::StringPool::getPooledString | ( | const char * | original | ) |
Returns a pointer to a copy of the string that is passed in.
The pool will always return the same String object when asked for a string that matches it.
Returns a pointer to a shared copy of the string that is passed in.
The pool will always return the same String object when asked for a string that matches it.
String juce::StringPool::getPooledString | ( | String::CharPointerType | start, |
String::CharPointerType | end | ||
) |
Returns a pointer to a copy of the string that is passed in.
The pool will always return the same String object when asked for a string that matches it.
Returns a pointer to a shared copy of the string that is passed in.
The pool will always return the same String object when asked for a string that matches it.
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private |
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private |