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org.apache.derby.impl.services.bytecode
Class BCClass  

java.lang.Object
  org.apache.derby.impl.services.bytecode.GClass
      org.apache.derby.impl.services.bytecode.BCClass

All Implemented Interfaces:

org.apache.derby.iapi.services.compiler.ClassBuilder

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class BCClass

extends GClass

ClassBuilder is used to construct a java class's byte array representation. Limitations: No checking for language use violations such as invalid modifiers or duplicate field names. All classes must have a superclass; java.lang.Object must be supplied if there is no superclass.

When a class is first created, it has:

• a superclass
• modifiers
• a name
• a package
• no superinterfaces, methods, fields, or constructors
• an empty static initializer
• an empty initializer

MethodBuilder implementations are required to supply a way for Generators to give them code. Most typically, they may have a stream to which the Generator writes the code that is of the type to satisfy what the Generator is writing.

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Field Summary
protected  org.apache.derby.iapi.services.classfile.ClassHolder	classHold
(package private)  Type	classType
(package private)  BCJava	factory
protected  java.lang.String	name
protected  java.lang.String	superClassName

 

Fields inherited from class org.apache.derby.impl.services.bytecode.GClass

bytecode, cf, qualifiedName

 

Constructor Summary
(package private)	BCClass(org.apache.derby.iapi.services.loader.ClassFactory cf, java.lang.String packageName, int classModifiers, java.lang.String className, java.lang.String superClassName, BCJava factory)

 

Method Summary
org.apache.derby.iapi.services.compiler.LocalField	addField(java.lang.String javaType, java.lang.String name, int modifiers)           add a field to this class.
org.apache.derby.iapi.util.ByteArray	getClassBytecode()           At the time the class is completed and bytecode generated, if there are no constructors then the default no-arg constructor will be defined.
(package private)  org.apache.derby.iapi.services.loader.ClassFactory	getClassFactory()
java.lang.String	getName()           the class's unqualified name
(package private)  java.lang.String	getSuperClassName()
(package private)  org.apache.derby.iapi.services.classfile.ClassHolder	modify()           Let those that need to get to the classModify tool to alter the class definition.
org.apache.derby.iapi.services.compiler.MethodBuilder	newConstructorBuilder(int modifiers)           a constructor.
void	newFieldWithAccessors(java.lang.String getter, java.lang.String setter, int methodModifers, boolean staticField, java.lang.String type)           Create a new private field and its getter and setter methods.
org.apache.derby.iapi.services.compiler.MethodBuilder	newMethodBuilder(int modifiers, java.lang.String returnType, java.lang.String methodName)           a method.
org.apache.derby.iapi.services.compiler.MethodBuilder	newMethodBuilder(int modifiers, java.lang.String returnType, java.lang.String methodName, java.lang.String[] parms)           a method with parameters.

 

Methods inherited from class org.apache.derby.impl.services.bytecode.GClass

getFullName, getGeneratedClass, validateType, writeClassFile

 

Methods inherited from class java.lang.Object

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

 

Field Detail

classHold

protected org.apache.derby.iapi.services.classfile.ClassHolder classHold

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superClassName

protected java.lang.String superClassName

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name

protected java.lang.String name

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factory

BCJava factory

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classType

final Type classType

Constructor Detail

BCClass

BCClass(org.apache.derby.iapi.services.loader.ClassFactory cf,
        java.lang.String packageName,
        int classModifiers,
        java.lang.String className,
        java.lang.String superClassName,
        BCJava factory)

Method Detail

addField

public org.apache.derby.iapi.services.compiler.LocalField addField(java.lang.String javaType,
                                                                   java.lang.String name,
                                                                   int modifiers)

add a field to this class. Fields cannot be initialized here, they must be initialized in the static initializer code (static fields) or in the constructors.

static fields also added to this list, with the modifier set appropriately.

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getClassBytecode

public org.apache.derby.iapi.util.ByteArray getClassBytecode()
                                                      throws org.apache.derby.iapi.error.StandardException

At the time the class is completed and bytecode generated, if there are no constructors then the default no-arg constructor will be defined.

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getName

public java.lang.String getName()

the class's unqualified name

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newMethodBuilder

public org.apache.derby.iapi.services.compiler.MethodBuilder newMethodBuilder(int modifiers,
                                                                              java.lang.String returnType,
                                                                              java.lang.String methodName)

a method. Once it is created, thrown exceptions, statements, and local variable declarations must be added to it. It is put into its defining class when it is created. Java: #modifiers #returnType #methodName() {} // modifiers is the | of the JVM constants for // the modifiers such as static, public, etc.

This is used to start a constructor as well; pass in null for the returnType when used in that manner.

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newMethodBuilder

public org.apache.derby.iapi.services.compiler.MethodBuilder newMethodBuilder(int modifiers,
                                                                              java.lang.String returnType,
                                                                              java.lang.String methodName,
                                                                              java.lang.String[] parms)

a method with parameters. Once it is created, thrown exceptions, statements, and local variable declarations must be added to it. It is put into its defining class when it is created. Java: #modifiers #returnType #methodName() {} // modifiers is the | of the JVM constants for // the modifiers such as static, public, etc.

This is used to start a constructor as well; pass in null for the returnType when used in that manner.

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newConstructorBuilder

public org.apache.derby.iapi.services.compiler.MethodBuilder newConstructorBuilder(int modifiers)

a constructor. Once it is created, thrown exceptions, statements, and local variable declarations must be added to it. It is put into its defining class when it is created. Java: #modifiers #className() {} // modifiers is the | of the JVM constants for // the modifiers such as static, public, etc. // className is taken from definingClass.getName()

This is used to start a constructor as well; pass in null for the returnType when used in that manner.

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getSuperClassName

java.lang.String getSuperClassName()

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modify

org.apache.derby.iapi.services.classfile.ClassHolder modify()

Let those that need to get to the classModify tool to alter the class definition.

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getClassFactory

org.apache.derby.iapi.services.loader.ClassFactory getClassFactory()

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newFieldWithAccessors

public void newFieldWithAccessors(java.lang.String getter,
                                  java.lang.String setter,
                                  int methodModifers,
                                  boolean staticField,
                                  java.lang.String type)

Description copied from interface: org.apache.derby.iapi.services.compiler.ClassBuilder

Create a new private field and its getter and setter methods.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> impl >> services >> [ bytecode overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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