Java Doc for IsNullValue.java in  » Code-Analyzer » findbugs » edu » umd » cs » findbugs » ba » npe » Java Source Code / Java DocumentationJava Source Code and Java Documentation

Java Source Code / Java Documentation 1.  6.0 JDK Core 2.  6.0 JDK Modules 3.  6.0 JDK Modules com.sun 4.  6.0 JDK Modules com.sun.java 5.  6.0 JDK Modules sun 6.  6.0 JDK Platform 7.  Ajax 8.  Apache Harmony Java SE 9.  Aspect oriented 10.  Authentication Authorization 11.  Blogger System 12.  Build 13.  Byte Code 14.  Cache 15.  Chart 16.  Chat 17.  Code Analyzer 18.  Collaboration 19.  Content Management System 20.  Database Client 21.  Database DBMS 22.  Database JDBC Connection Pool 23.  Database ORM 24.  Development 25.  EJB Server geronimo 26.  EJB Server GlassFish 27.  EJB Server JBoss 4.2.1 28.  EJB Server resin 3.1.5 29.  ERP CRM Financial 30.  ESB 31.  Forum 32.  GIS 33.  Graphic Library 34.  Groupware 35.  HTML Parser 36.  IDE 37.  IDE Eclipse 38.  IDE Netbeans 39.  Installer 40.  Internationalization Localization 41.  Inversion of Control 42.  Issue Tracking 43.  J2EE 44.  JBoss 45.  JMS 46.  JMX 47.  Library 48.  Mail Clients 49.  Net 50.  Parser 51.  PDF 52.  Portal 53.  Profiler 54.  Project Management 55.  Report 56.  RSS RDF 57.  Rule Engine 58.  Science 59.  Scripting 60.  Search Engine 61.  Security 62.  Sevlet Container 63.  Source Control 64.  Swing Library 65.  Template Engine 66.  Test Coverage 67.  Testing 68.  UML 69.  Web Crawler 70.  Web Framework 71.  Web Mail 72.  Web Server 73.  Web Services 74.  Web Services apache cxf 2.0.1 75.  Web Services AXIS2 76.  Wiki Engine 77.  Workflow Engines 78.  XML 79.  XML UI Java Java Tutorial Java Open Source Jar File Download Java Articles Java Products Java by API Photoshop Tutorials Maya Tutorials Flash Tutorials 3ds-Max Tutorials Illustrator Tutorials GIMP Tutorials C# / C Sharp C# / CSharp Tutorial C# / CSharp Open Source ASP.Net ASP.NET Tutorial JavaScript DHTML JavaScript Tutorial JavaScript Reference HTML / CSS HTML CSS Reference C / ANSI-C C Tutorial C++ C++ Tutorial Ruby PHP Python Python Tutorial Python Open Source SQL Server / T-SQL SQL Server / T-SQL Tutorial Oracle PL / SQL Oracle PL/SQL Tutorial PostgreSQL SQL / MySQL MySQL Tutorial VB.Net VB.Net Tutorial Flash / Flex / ActionScript VBA / Excel / Access / Word XML XML Tutorial Microsoft Office PowerPoint 2007 Tutorial Microsoft Office Excel 2007 Tutorial Microsoft Office Word 2007 Tutorial

Java Source Code / Java Documentation » Code Analyzer » findbugs » edu.umd.cs.findbugs.ba.npe   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    edu.umd.cs.findbugs.ba.npe.IsNullValue IsNullValue public class IsNullValue implements IsNullValueAnalysisFeatures,Debug(Code) A class to abstractly represent values in stack slots, indicating whether thoses values can be null, non-null, null on some incoming path, or unknown. author:    David Hovemeyer See Also:   IsNullValueFrame See Also:   IsNullValueAnalysis Method Summary public static  IsNullValue checkedNonNullValue()      Get the instance representing a value known to be non-null because it was compared against null value, or because we saw the object creation. public static  IsNullValue checkedNullValue()      Get the instance representing a value known to be null because it was compared against null value, or because we saw that it was assigned the null constant. public  IsNullValue downgradeOnControlSplit()      Control split: move given value down in the lattice if it is a conditionally-null value. public  boolean equals(Object o)      public  Location getLocationOfKaBoom()      public  int hashCode()      public  boolean isChecked()      public  boolean isDefinitelyNotNull()      public  boolean isDefinitelyNull()      public  boolean isException()      public  boolean isFieldValue()      public  boolean isNullOnComplicatedPath()      public  boolean isNullOnSomePath()      public  boolean isParamValue()      public  boolean isReturnValue()      public  IsNullValue markInformationAsComingFromFieldValue(XField field)      Convert to a value known because it was returned from a method in a method property database. public  IsNullValue markInformationAsComingFromReturnValueOfMethod(XMethod methodInvoked)      Convert to a value known because it was returned from a method in a method property database. public static  IsNullValue merge(IsNullValue a, IsNullValue b)      Merge two values. public  boolean mightBeNull()      Return true if this value is either definitely null, or might be null on a simple path. public static  IsNullValue noKaboomNonNullValue(Location ins)      Get the instance representing a value known to be non-null because a NPE would have occurred if it were null. public static  IsNullValue nonNullValue()      Get the instance representing values that are definitely not null. public static  IsNullValue nonReportingNotNullValue()      Get non-reporting non-null value. public static  IsNullValue nullOnComplexPathValue()      Get null on complex path value. This is like null on simple path value, but there are at least two branches between the explicit null value and the current location. public static  IsNullValue nullOnComplexPathValue3()      Like "null on complex path" except that there are at least three branches between the explicit null value and the current location. public static  IsNullValue nullOnSimplePathValue()      Get the instance representing values that are definitely null on some simple (no branches) incoming path. public static  IsNullValue nullValue()      Get the instance representing values that are definitely null. public static  IsNullValue parameterMarkedAsMightBeNull(XMethodParameter mp)      public static  IsNullValue pathSensitiveNonNullValue()      Get non-null value resulting from comparison to explicit null. public static  IsNullValue pathSensitiveNullValue()      Get null value resulting from comparison to explicit null. public  IsNullValue toExceptionValue()      Convert to an exception path value. public  String toString()      public  boolean wouldHaveBeenAKaboom()      Method Detail checkedNonNullValue public static IsNullValue checkedNonNullValue()(Code) Get the instance representing a value known to be non-null because it was compared against null value, or because we saw the object creation. checkedNullValue public static IsNullValue checkedNullValue()(Code) Get the instance representing a value known to be null because it was compared against null value, or because we saw that it was assigned the null constant. downgradeOnControlSplit public IsNullValue downgradeOnControlSplit()(Code) Control split: move given value down in the lattice if it is a conditionally-null value. another value (equal or further down in the lattice) equals public boolean equals(Object o)(Code) getLocationOfKaBoom public Location getLocationOfKaBoom()(Code) hashCode public int hashCode()(Code) isChecked public boolean isChecked()(Code) Is this value known because of an explicit null check? isDefinitelyNotNull public boolean isDefinitelyNotNull()(Code) Is this value definitely not null? isDefinitelyNull public boolean isDefinitelyNull()(Code) Is this value definitely null? isException public boolean isException()(Code) Was this value propagated on an exception path? isFieldValue public boolean isFieldValue()(Code) isNullOnComplicatedPath public boolean isNullOnComplicatedPath()(Code) Is this value null on a complicated path? isNullOnSomePath public boolean isNullOnSomePath()(Code) Is this value null on some path? isParamValue public boolean isParamValue()(Code) Was this value marked as a possibly null parameter? isReturnValue public boolean isReturnValue()(Code) Was this value marked as a possibly null return value? markInformationAsComingFromFieldValue public IsNullValue markInformationAsComingFromFieldValue(XField field)(Code) Convert to a value known because it was returned from a method in a method property database. Parameters:   methodInvoked - TODO markInformationAsComingFromReturnValueOfMethod public IsNullValue markInformationAsComingFromReturnValueOfMethod(XMethod methodInvoked)(Code) Convert to a value known because it was returned from a method in a method property database. Parameters:   methodInvoked - TODO merge public static IsNullValue merge(IsNullValue a, IsNullValue b)(Code) Merge two values. mightBeNull public boolean mightBeNull()(Code) Return true if this value is either definitely null, or might be null on a simple path. true if this value is either definitely null,or might be null on a simple path, false otherwise noKaboomNonNullValue public static IsNullValue noKaboomNonNullValue(Location ins)(Code) Get the instance representing a value known to be non-null because a NPE would have occurred if it were null. nonNullValue public static IsNullValue nonNullValue()(Code) Get the instance representing values that are definitely not null. nonReportingNotNullValue public static IsNullValue nonReportingNotNullValue()(Code) Get non-reporting non-null value. This is what we use for unknown values. nullOnComplexPathValue public static IsNullValue nullOnComplexPathValue()(Code) Get null on complex path value. This is like null on simple path value, but there are at least two branches between the explicit null value and the current location. If the conditions are correlated, then the path on which the value is null may be infeasible. nullOnComplexPathValue3 public static IsNullValue nullOnComplexPathValue3()(Code) Like "null on complex path" except that there are at least three branches between the explicit null value and the current location. nullOnSimplePathValue public static IsNullValue nullOnSimplePathValue()(Code) Get the instance representing values that are definitely null on some simple (no branches) incoming path. nullValue public static IsNullValue nullValue()(Code) Get the instance representing values that are definitely null. parameterMarkedAsMightBeNull public static IsNullValue parameterMarkedAsMightBeNull(XMethodParameter mp)(Code) Get instance representing a parameter marked as MightBeNull pathSensitiveNonNullValue public static IsNullValue pathSensitiveNonNullValue()(Code) Get non-null value resulting from comparison to explicit null. pathSensitiveNullValue public static IsNullValue pathSensitiveNullValue()(Code) Get null value resulting from comparison to explicit null. toExceptionValue public IsNullValue toExceptionValue()(Code) Convert to an exception path value. toString public String toString()(Code) wouldHaveBeenAKaboom public boolean wouldHaveBeenAKaboom()(Code) Is this value known to be non null because a NPE would have occurred otherwise? Methods inherited from java.lang.Object native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object obj)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final native public Class getClass()(Code)(Java Doc) native public int hashCode()(Code)(Java Doc) final native public void notify()(Code)(Java Doc) final native public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc) final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)