apache / derbyConditional Complexity

Intro

Conditional complexity (also called cyclomatic complexity) is a term used to measure the complexity of software. The term refers to the number of possible paths through a program function. A higher value ofter means higher maintenance and testing costs (infosecinstitute.com).
Conditional complexity is calculated by counting all conditions in the program that can affect the execution path (e.g. if statement, loops, switches, and/or operators, try and catch blocks...).
Conditional complexity is measured at the unit level (methods, functions...).
Units are classified in four categories based on the measured McCabe index: 1-5 (simple units), 6-10 (medium complex units), 11-25 (complex units), 26+ (very complex units).

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Conditional Complexity Overall

There are 21,144 units with 270,387 lines of code in units (73.9% of code).

22 very complex units (6,927 lines of code)
108 complex units (15,105 lines of code)
648 medium complex units (41,211 lines of code)
1,432 simple units (47,414 lines of code)
18,934 very simple units (159,730 lines of code)

Legend:

51+

26-50

11-25

6-10

1-5

Alternative Visuals

3D view of all units

Conditional Complexity per Extension

51+

26-50

11-25

6-10

1-5

Conditional Complexity per Logical Component

primary logical decomposition

51+

26-50

11-25

6-10

1-5

Most Complex Units

Top 50 most complex units

Unit	# lines	McCabe index	# params
public CostEstimate estimateCost() in java/org.apache.derby.engine/org/apache/derby/impl/sql/compile/FromBaseTable.java	595	123	5
public void recover() in java/org.apache.derby.engine/org/apache/derby/impl/store/raw/log/LogToFile.java	415	85	2
public ResultSetStatistics getResultSetStatistics() in java/org.apache.derby.engine/org/apache/derby/impl/sql/execute/RealResultSetStatisticsFactory.java	901	80	1
public boolean getNextPermutation() in java/org.apache.derby.engine/org/apache/derby/impl/sql/compile/OptimizerImpl.java	300	79	0
private static int getMask() in java/stubs/felix/org/osgi/framework/BundlePermission.java	86	75	1
public int logRow() in java/org.apache.derby.engine/org/apache/derby/impl/store/raw/data/StoredPage.java	393	74	11
private void orderUsefulPredicates() in java/org.apache.derby.engine/org/apache/derby/impl/sql/compile/PredicateList.java	248	74	5
public void executeConstantAction() in java/org.apache.derby.engine/org/apache/derby/impl/sql/execute/CreateIndexConstantAction.java	419	71	1
public EmbedConnection() in java/org.apache.derby.engine/org/apache/derby/impl/jdbc/EmbedConnection.java	242	69	3
private LogRecord getNextRecordForward() in java/org.apache.derby.engine/org/apache/derby/impl/store/raw/log/Scan.java	308	67	3
private Hashtable computeProtocolTypesAndLengths() in java/org.apache.derby.client/org/apache/derby/client/net/NetStatementRequest.java	278	66	4
final int splitExpressionOut() in java/org.apache.derby.engine/org/apache/derby/impl/services/bytecode/CodeChunk.java	178	65	4
private void processCommands() in java/org.apache.derby.server/org/apache/derby/impl/drda/DRDAConnThread.java	319	64	0
public synchronized void doGet() in java/org.apache.derby.server/org/apache/derby/drda/NetServlet.java	321	63	2
private void executeConstantActionBody() in java/org.apache.derby.engine/org/apache/derby/impl/sql/execute/AlterTableConstantAction.java	262	63	1
private int parseSECCHK() in java/org.apache.derby.server/org/apache/derby/impl/drda/DRDAConnThread.java	220	60	0
protected long redo() in java/org.apache.derby.engine/org/apache/derby/impl/store/raw/log/FileLogger.java	297	59	5
ValueNode preprocess() in java/org.apache.derby.engine/org/apache/derby/impl/sql/compile/SubqueryNode.java	145	59	4
private boolean writeFDODTA() in java/org.apache.derby.server/org/apache/derby/impl/drda/DRDAConnThread.java	243	58	1
public void doUpdateAtSlot() in java/org.apache.derby.engine/org/apache/derby/impl/store/raw/data/StoredPage.java	275	56	5
private void dropColumnFromTable() in java/org.apache.derby.engine/org/apache/derby/impl/sql/execute/AlterTableConstantAction.java	315	54	1
boolean calculateColumnOffsetsForRow_() in java/org.apache.derby.client/org/apache/derby/client/net/NetCursor.java	167	53	2
public static void main() in java/org.apache.derby.tools/org/apache/derby/tools/PlanExporter.java	119	50	1
protected void flush() in java/org.apache.derby.engine/org/apache/derby/impl/store/raw/log/LogToFile.java	191	50	2
private PreparedStatement prepMinion() in java/org.apache.derby.engine/org/apache/derby/impl/sql/GenericStatement.java	291	50	5
private void parseEXCSQLSTT() in java/org.apache.derby.server/org/apache/derby/impl/drda/DRDAConnThread.java	209	49	0
private void readAndSetParams() in java/org.apache.derby.server/org/apache/derby/impl/drda/DRDAConnThread.java	220	49	3
private void flowExecute() in java/org.apache.derby.client/org/apache/derby/client/am/ClientPreparedStatement.java	171	49	1
protected boolean classConvertableFromTo() in java/org.apache.derby.engine/org/apache/derby/iapi/services/loader/ClassInspector.java	53	48	3
public Object run() in java/org.apache.derby.engine/org/apache/derby/impl/store/raw/data/RAFContainer.java	249	47	0
private void buildFDODTA() in java/org.apache.derby.client/org/apache/derby/client/net/NetStatementRequest.java	191	46	3
public Lock lockObject() in java/org.apache.derby.engine/org/apache/derby/impl/services/locks/ConcurrentLockSet.java	228	46	4
private void init() in java/org.apache.derby.engine/org/apache/derby/impl/services/jce/JCECipherFactory.java	174	46	3
private static int getMask() in java/stubs/felix/org/osgi/framework/PackagePermission.java	64	45	1
private void flowExecute() in java/org.apache.derby.client/org/apache/derby/client/am/ClientStatement.java	149	45	2
void generateExpression() in java/org.apache.derby.engine/org/apache/derby/impl/sql/compile/StaticMethodCallNode.java	216	45	2
protected BasePage newPage() in java/org.apache.derby.engine/org/apache/derby/impl/store/raw/data/FileContainer.java	236	44	4
public String getActionString() in java/org.apache.derby.engine/org/apache/derby/impl/sql/depend/BasicDependencyManager.java	96	44	1
private static int getMask() in java/stubs/felix/org/osgi/framework/ServicePermission.java	63	43	1
private DRDAStatement parseCNTQRY() in java/org.apache.derby.server/org/apache/derby/impl/drda/DRDAConnThread.java	168	43	0
protected int fetchRows() in java/org.apache.derby.engine/org/apache/derby/impl/store/access/btree/BTreeForwardScan.java	237	43	6
void searchClauseTransitiveClosure() in java/org.apache.derby.engine/org/apache/derby/impl/sql/compile/PredicateList.java	188	43	2
private void storeRecordForUpdate() in java/org.apache.derby.engine/org/apache/derby/impl/store/raw/data/StoredPage.java	185	42	2
public String getColumnTypeName() in java/org.apache.derby.client/org/apache/derby/client/am/ColumnMetaData.java	86	41	1
private DataTypeDescriptor resolveConcatOperation() in java/org.apache.derby.engine/org/apache/derby/impl/sql/compile/ConcatenationOperatorNode.java	101	41	2
public void bindStatement() in java/org.apache.derby.engine/org/apache/derby/impl/sql/compile/UpdateNode.java	262	41	0
private boolean fillBuffer() in java/org.apache.derby.engine/org/apache/derby/impl/jdbc/UTF8Reader.java	119	40	0
private LogRecord getNextRecordBackward() in java/org.apache.derby.engine/org/apache/derby/impl/store/raw/log/Scan.java	176	40	3
public void boot() in java/org.apache.derby.engine/org/apache/derby/impl/store/raw/log/LogToFile.java	216	40	2
public final Object run() in java/org.apache.derby.engine/org/apache/derby/impl/store/raw/data/BaseDataFileFactory.java	151	40	0