1 files changed, 136 insertions, 0 deletions
diff --git a/3rdparty/clucene/src/CLucene/search/FilteredTermEnum.cpp b/3rdparty/clucene/src/CLucene/search/FilteredTermEnum.cpp
new file mode 100644
index 000000000..f90ceeaaf
--- /dev/null
+++ b/3rdparty/clucene/src/CLucene/search/FilteredTermEnum.cpp
@@ -0,0 +1,136 @@
+/*------------------------------------------------------------------------------
+* Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team
+* 
+* Distributable under the terms of either the Apache License (Version 2.0) or 
+* the GNU Lesser General Public License, as specified in the COPYING file.
+------------------------------------------------------------------------------*/
+#include "CLucene/StdHeader.h"
+
+#include "FilteredTermEnum.h"
+
+CL_NS_USE(index)
+CL_NS_DEF(search)
+
+
+    FilteredTermEnum::FilteredTermEnum(){
+	//Func - Constructor
+	//Pre  - true
+	//Post - Instance has been created
+		
+        currentTerm = NULL;
+        actualEnum = NULL;
+    }
+
+    FilteredTermEnum::~FilteredTermEnum() {
+    //Func - Destructor
+	//Pre  - true
+	//Post - The instance has been destroyed
+      
+        close();
+    }
+
+	int32_t FilteredTermEnum::docFreq() const {
+	//Func - Returns the docFreq of the current Term in the enumeration.
+	//Pre  - next() must have been called at least once
+	//Post - if actualEnum is NULL result is -1 otherwise the frequencey is returned
+
+		if (actualEnum == NULL){
+			return -1;
+		}
+        return actualEnum->docFreq();
+    }
+    
+    bool FilteredTermEnum::next() {
+    //Func - Increments the enumeration to the next element.  
+	//Pre  - true
+	//Post - Returns True if the enumeration has been moved to the next element otherwise false
+
+		//The actual enumerator is not initialized!
+		if (actualEnum == NULL){
+			return false; 
+		    }
+
+		//Finalize the currentTerm and reset it to NULL
+       _CLDECDELETE( currentTerm );
+
+		//Iterate through the enumeration
+        while (currentTerm == NULL) {
+            if (endEnum()) 
+				return false;
+            if (actualEnum->next()) {
+                //Order term not to return reference ownership here. */
+                Term* term = actualEnum->term(false);
+				//Compare the retrieved term
+                if (termCompare(term)){
+					//Matched so finalize the current
+                    _CLDECDELETE(currentTerm);
+					//Get a reference to the matched term
+                    currentTerm = _CL_POINTER(term);
+                    return true;
+                }
+            }else 
+                return false;
+        }
+        _CLDECDELETE(currentTerm);
+        currentTerm = NULL;
+
+        return false;
+    }
+
+    Term* FilteredTermEnum::term() {
+	//Func - Returns the current Term in the enumeration.
+	//Pre  - next() must have been called at least once
+	//       pointer is true or false
+	//Post - if pre(pointer) is true the reference counter of currentTerm is increased
+	//       and current Term is returned otherwise currentTerm is only returned
+
+        return _CL_POINTER(currentTerm);
+    }
+    Term* FilteredTermEnum::term(bool pointer) {
+    	if ( pointer )
+        	return _CL_POINTER(currentTerm);
+        else
+        	return currentTerm;
+    }
+
+    void FilteredTermEnum::close(){
+	//Func - Closes the enumeration to further activity, freeing resources.
+	//Pre  - true
+	//Post - The Enumeration has been closed
+
+		//Check if actualEnum is valid
+		if (actualEnum){
+			//Close the enumeration
+            actualEnum->close();
+		    }
+
+        //Destroy the enumeration
+        _CLDELETE(actualEnum);
+
+		//Destroy currentTerm
+        _CLDECDELETE(currentTerm);
+    }
+
+	void FilteredTermEnum::setEnum(TermEnum* actualEnum) {
+	//Func - Sets the actual Enumeration
+	//Pre  - actualEnum != NULL
+	//Post - The instance has been created
+
+		CND_PRECONDITION(actualEnum != NULL,"actualEnum is NULL");
+
+		_CLDELETE(this->actualEnum);
+
+        this->actualEnum = actualEnum;
+
+        // Find the first term that matches
+        //Ordered term not to return reference ownership here.
+        Term* term = actualEnum->term(false);
+        if (term != NULL && termCompare(term)){
+            _CLDECDELETE(currentTerm);
+            currentTerm = _CL_POINTER(term);
+        }else{
+            next();
+		}
+    }
+
+CL_NS_END