Class | Description |
---|---|
AppendCharacterWithCharRule |
This rule finds the following:
StringBuffer.append("c"); // appends a
single character
It is preferable to use StringBuffer.append('c'); // appends a single
character Implementation of PMD RFE 1373863
|
AvoidDuplicateLiteralsRule | |
AvoidDuplicateLiteralsRule.ExceptionParser | |
ConsecutiveLiteralAppendsRule |
This rule finds concurrent calls to StringBuffer/Builder.append where String literals
are used It would be much better to make these calls using one call to
.append
example:
StringBuilder buf = new StringBuilder();
buf.append("Hello");
buf.append(" ").append("World");
This would be more eloquently put as:
StringBuilder buf = new StringBuilder();
buf.append("Hello World");
The rule takes one parameter, threshold, which defines the lower limit of
consecutive appends before a violation is created.
|
InefficientEmptyStringCheckRule |
This rule finds code which inefficiently determines empty strings.
|
InefficientStringBufferingRule |
How this rule works:
find additive expressions: +
check that the addition is between anything other than two literals
if true and also the parent is StringBuffer constructor or append,
report a violation.
|
InsufficientStringBufferDeclarationRule |
This rule finds StringBuffers which may have been pre-sized incorrectly
See http://sourceforge.net/forum/forum.php?
|
StringInstantiationRule | |
StringToStringRule | |
UnnecessaryCaseChangeRule | |
UseIndexOfCharRule | |
UselessStringValueOfRule | |
UseStringBufferLengthRule |
This rule finds places where StringBuffer.toString() is called just to see if
the string is 0 length by either using .equals("") or toString().length()
StringBuffer sb = new StringBuffer("some string");
if (sb.toString().equals("")) {
// this is wrong
}
if (sb.length() == 0) {
// this is right
}
|
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