Packages

  • package root
    Definition Classes
    root
  • package org
    Definition Classes
    root
  • package opalj

    OPAL is a Scala-based framework for the static analysis, manipulation and creation of Java bytecode.

    OPAL is a Scala-based framework for the static analysis, manipulation and creation of Java bytecode. OPAL is designed with performance, scalability and adaptability in mind.

    Its main components are:

    • a library (Common) which provides generally useful data-structures and algorithms for static analyses.
    • a framework for implementing lattice based static analyses (Static Analysis Infrastructure)
    • a framework for parsing Java bytecode (Bytecode Infrastructure) that can be used to create arbitrary representations.
    • a library to create a one-to-one in-memory representation of Java bytecode (Bytecode Disassembler).
    • a library to create a representation of Java bytecode that facilitates writing simple static analyses (Bytecode Representation - org.opalj.br).
    • a scalable, easily customizable framework for the abstract interpretation of Java bytecode (Abstract Interpretation Framework - org.opalj.ai).
    • a library to extract dependencies between code elements and to facilitate checking architecture definitions.
    • a library for the lightweight manipulation and creation of Java bytecode (Bytecode Assembler).

    General Design Decisions

    Thread Safety

    Unless explicitly noted, OPAL is thread safe. I.e., the classes defined by OPAL can be considered to be thread safe unless otherwise stated. (For example, it is possible to read and process class files concurrently without explicit synchronization on the client side.)

    No null Values

    Unless explicitly noted, OPAL does not null values I.e., fields that are accessible will never contain null values and methods will never return null. If a method accepts null as a value for a parameter or returns a null value it is always explicitly documented. In general, the behavior of methods that are passed null values is undefined unless explicitly documented.

    No Typecasts for Collections

    For efficiency reasons, OPAL sometimes uses mutable data-structures internally. After construction time, these data-structures are generally represented using their generic interfaces (e.g., scala.collection.{Set,Map}). However, a downcast (e.g., to add/remove elements) is always forbidden as it would effectively prevent thread-safety.

    Assertions

    OPAL makes heavy use of Scala's Assertion Facility to facilitate writing correct code. Hence, for production builds (after thorough testing(!)) it is highly recommend to build OPAL again using -Xdisable-assertions.

    Definition Classes
    org
  • package util

    Utility methods.

    Utility methods.

    Definition Classes
    opalj
  • Counting
  • GlobalPerformanceEvaluation
  • InMemoryClassLoader
  • IntStatistics
  • Milliseconds
  • Nanoseconds
  • PerformanceEvaluation
  • Seconds
t

org.opalj.util

Counting

trait Counting extends Locking

A simple class that enables the counting of something.

Examples:

  • How often is a function called during runtime?
  • How often runs the program in a specific case?

Thread Safety

This class is thread safe.

Linear Supertypes
Locking, AnyRef, Any
Known Subclasses
IntStatistics
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Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  6. def doGetCount(s: Symbol): Long

    Called by the getCount(Symbol) method.

    Called by the getCount(Symbol) method.

    Thread Safety

    The getCount method takes care of the synchronization.

    Attributes
    protected[this]
  7. def doUpdateCount(s: Symbol, value: Long): Unit

    Called by the updateCount(Symbol, Int) method.

    Called by the updateCount(Symbol, Int) method.

    Thread Safety

    The updateCount method takes care of the synchronization.

    Attributes
    protected[this]
  8. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  9. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  10. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  11. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  12. def getCount(s: Symbol): Long

    Returns the overall count that has been summed up with the given symbol s.

  13. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  14. final def incrementCount(s: Symbol): Unit
  15. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  16. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  17. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  18. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  19. def reset(s: Symbol): Unit

    Resets the overall count of the given symbol.

  20. def resetAll(): Unit

    Resets everything.

    Resets everything. The effect is comparable to creating a new instance, but is more efficient.

  21. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  22. def toString(): String
    Definition Classes
    AnyRef → Any
  23. final def updateCount(s: Symbol, value: Long): Unit

    Updates the count related to the entity identified by the given symbol.

    Updates the count related to the entity identified by the given symbol.

    If the passed value is positive the count will be increased whereas it will be decreased when a negative number is passed.

    s

    Symbol used to correlate values related to the same entity.

    value

    The value that will be added to the entity's current value.

  24. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  25. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  26. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  27. def withReadLock[B](f: ⇒ B): B

    Acquires the read lock associated with this instance and then executes the function f.

    Acquires the read lock associated with this instance and then executes the function f. Afterwards, the lock is released.

    Attributes
    protected[this]
    Definition Classes
    Locking
  28. def withWriteLock[B](f: ⇒ B): B

    Acquires the write lock associated with this instance and then executes the function f.

    Acquires the write lock associated with this instance and then executes the function f. Afterwards, the lock is released.

    Attributes
    protected[this]
    Definition Classes
    Locking

Inherited from Locking

Inherited from AnyRef

Inherited from Any

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