org.myire.quill.jol

Class JolResult.ClassLayout

java.lang.Object

org.myire.quill.jol.JolResult.ClassLayout

Enclosing class:

JolResult

public static class JolResult.ClassLayout
extends java.lang.Object

Layout information for a class.

Constructor Summary

Constructors

Constructor and Description
ClassLayout(java.lang.String pClassName, java.lang.String pPackageName, java.lang.String pEnclosingClassName, int pHeaderSize, long pInstanceSize, java.util.Collection<JolResult.FieldLayout> pFields) Create a new ClassLayout.

Method Summary

Modifier and Type	Method and Description
java.lang.String	getClassName() Get the name of the class for which this instance contains layout info.
java.lang.String	getEnclosingClassName() Get the name of the enclosing class of the class this instance contains layout info for.
long	getExternalAlignmentGapSize() Get the size of any gap caused by the next object being aligned.
java.lang.Iterable<JolResult.FieldLayout>	getFields() Get an Iterable with the layouts of the fields in this class.
java.lang.String	getFullClassName() Get the class name prefixed with any enclosing class name.
java.lang.String	getFullyQualifiedName() Get the full class name prefixed with the package name.
int	getHeaderSize() Get the object header size of the class.
long	getInstanceSize() Get the size of instances of the class.
long	getInternalAlignmentGapSize() Get the sum of all internal field alignment gap sizes.
int	getNumFields() Get the number of fields in this class.
java.lang.String	getPackageName() Get the name of the package the class belongs to.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ClassLayout

public ClassLayout(java.lang.String pClassName,
                   java.lang.String pPackageName,
                   java.lang.String pEnclosingClassName,
                   int pHeaderSize,
                   long pInstanceSize,
                   java.util.Collection<JolResult.FieldLayout> pFields)

Create a new ClassLayout.

Parameters:

pClassName - The name of the class for which to hold layout info.

pPackageName - The name of the package the class belongs.

pEnclosingClassName - The name of any enclosing class.

pHeaderSize - The object header size of the class' instances.

pInstanceSize - The size of the class' instances.

pFields - The layout of the class' individual fields.

Throws:

java.lang.NullPointerException - if pClassName, pPackageName, or pFields is null.

Method Detail

getPackageName

public java.lang.String getPackageName()

Get the name of the package the class belongs to. Classes in the default package have an empty name.

Returns:

The package name, never null.

getClassName

public java.lang.String getClassName()

Get the name of the class for which this instance contains layout info.

Returns:

The class name, never null.

getEnclosingClassName

public java.lang.String getEnclosingClassName()

Get the name of the enclosing class of the class this instance contains layout info for.

Returns:

The enclosing class name, or null if there is no enclosing class.

getFullClassName

public java.lang.String getFullClassName()

Get the class name prefixed with any enclosing class name.

Returns:

The full class name, never null.

getFullyQualifiedName

public java.lang.String getFullyQualifiedName()

Get the full class name prefixed with the package name.

Returns:

The fully qualified name, never null.

getNumFields

public int getNumFields()

Get the number of fields in this class.

Returns:

The number of fields.

getFields

public java.lang.Iterable<JolResult.FieldLayout> getFields()

Get an Iterable with the layouts of the fields in this class.

Returns:

An Iterable of FieldLayout instances, possibly empty, never null.

getHeaderSize

public int getHeaderSize()

Get the object header size of the class.

Returns:

The object header size.

getInstanceSize

public long getInstanceSize()

Get the size of instances of the class.

Returns:

The instance size.

getInternalAlignmentGapSize

public long getInternalAlignmentGapSize()

Get the sum of all internal field alignment gap sizes.

Returns:

The total field alignment gap size.

getExternalAlignmentGapSize

public long getExternalAlignmentGapSize()

Get the size of any gap caused by the next object being aligned.

Returns:

The external alignment gap size.