Package org.drools.mvel.asm

Class DefaultBeanClassBuilder

java.lang.Object

org.drools.mvel.asm.DefaultBeanClassBuilder

All Implemented Interfaces:

Serializable, org.drools.core.factmodel.BeanClassBuilder, org.drools.core.factmodel.ClassBuilder, org.kie.api.Service, org.mvel2.asm.Opcodes

public class DefaultBeanClassBuilder
extends Object
implements org.mvel2.asm.Opcodes, org.drools.core.factmodel.BeanClassBuilder, Serializable

A builder to dynamically build simple Javabean(TM) classes

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	debug

Fields inherited from interface org.mvel2.asm.Opcodes

AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_MANDATED, ACC_MODULE, ACC_NATIVE, ACC_OPEN, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STATIC_PHASE, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_TRANSITIVE, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASM4, ASM5, ASM6, ASM7, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, H_GETFIELD, H_GETSTATIC, H_INVOKEINTERFACE, H_INVOKESPECIAL, H_INVOKESTATIC, H_INVOKEVIRTUAL, H_NEWINVOKESPECIAL, H_PUTFIELD, H_PUTSTATIC, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V_PREVIEW, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7, V1_8, V10, V11, V12, V9

Constructor Summary

Constructors

Constructor	Description
DefaultBeanClassBuilder()
DefaultBeanClassBuilder(boolean debug)

Method Summary

Modifier and Type	Method	Description
static void	addAnnotationAttribute(org.drools.core.factmodel.AnnotationDefinition ad, org.mvel2.asm.AnnotationVisitor av)
byte[]	buildClass(org.drools.core.factmodel.ClassDefinition classDef, ClassLoader classLoader)	Dynamically builds, defines and loads a class based on the given class definition
protected void	buildClassAnnotations(org.drools.core.factmodel.ClassDefinition classDef, org.mvel2.asm.ClassVisitor cw)
protected org.mvel2.asm.ClassWriter	buildClassHeader(ClassLoader classLoader, org.drools.core.factmodel.ClassDefinition classDef)	Defines the class header for the given class definition
protected void	buildConstructors(org.mvel2.asm.ClassWriter cw, org.drools.core.factmodel.ClassDefinition classDef)
protected void	buildConstructorWithFields(org.mvel2.asm.ClassVisitor cw, org.drools.core.factmodel.ClassDefinition classDef, Collection<org.drools.core.factmodel.FieldDefinition> fieldDefs)	Creates a constructor that takes and assigns values to all fields in the order they are declared.
protected void	buildDefaultConstructor(org.mvel2.asm.ClassVisitor cw, org.drools.core.factmodel.ClassDefinition classDef)	Creates a default constructor for the class
protected void	buildDynamicPropertyMap(org.mvel2.asm.ClassWriter cw, org.drools.core.factmodel.ClassDefinition def)	A traitable class is a special class with support for dynamic properties and types.
protected void	buildEqualityMethods(org.mvel2.asm.ClassWriter cw, org.drools.core.factmodel.ClassDefinition classDef)
protected void	buildEquals(org.mvel2.asm.ClassVisitor cw, org.drools.core.factmodel.ClassDefinition classDef)
protected void	buildField(org.mvel2.asm.ClassVisitor cw, org.drools.core.factmodel.FieldDefinition fieldDef)	Creates the field defined by the given FieldDefinition
protected void	buildFieldAnnotations(org.drools.core.factmodel.FieldDefinition fieldDef, org.mvel2.asm.FieldVisitor fv)
protected void	buildFields(org.mvel2.asm.ClassWriter cw, org.drools.core.factmodel.ClassDefinition classDef)
protected boolean	buildFieldsToString(org.drools.core.factmodel.ClassDefinition classDef, org.mvel2.asm.MethodVisitor mv, boolean previous)
protected void	buildFieldTMS(org.mvel2.asm.ClassWriter cw, org.drools.core.factmodel.ClassDefinition def)	A traitable class is a special class with support for dynamic properties and types.
protected void	buildFieldToString(org.drools.core.factmodel.FieldDefinition field, org.drools.core.factmodel.ClassDefinition classDef, org.mvel2.asm.MethodVisitor mv, boolean first)
protected void	buildGetMethod(org.mvel2.asm.ClassVisitor cw, org.drools.core.factmodel.ClassDefinition classDef, org.drools.core.factmodel.FieldDefinition fieldDef)	Creates the get method for the given field definition
protected void	buildGettersAndSetters(org.mvel2.asm.ClassWriter cw, org.drools.core.factmodel.ClassDefinition classDef)
protected void	buildHashCode(org.mvel2.asm.ClassVisitor cw, org.drools.core.factmodel.ClassDefinition classDef)
protected void	buildMetaData(org.mvel2.asm.ClassWriter cw, org.drools.core.factmodel.ClassDefinition classDef)
protected void	buildSetMethod(org.mvel2.asm.ClassVisitor cw, org.drools.core.factmodel.ClassDefinition classDef, org.drools.core.factmodel.FieldDefinition fieldDef)	Creates the set method for the given field definition
protected void	buildSystemHashCode(org.mvel2.asm.ClassWriter cw)
protected void	buildToString(org.mvel2.asm.ClassVisitor cw, org.drools.core.factmodel.ClassDefinition classDef)
protected void	buildTraitMap(org.mvel2.asm.ClassWriter cw, org.drools.core.factmodel.ClassDefinition classDef)	A traitable class is a special class with support for dynamic properties and types.
protected boolean	defaultConstructorStart(org.mvel2.asm.MethodVisitor mv, org.drools.core.factmodel.ClassDefinition classDef)
protected void	fieldConstructorStart(org.mvel2.asm.MethodVisitor mv, org.drools.core.factmodel.ClassDefinition classDef, Collection<org.drools.core.factmodel.FieldDefinition> fieldDefs)
protected boolean	initFieldWithDefaultValue(org.mvel2.asm.MethodVisitor mv, org.drools.core.factmodel.ClassDefinition classDef, org.drools.core.factmodel.FieldDefinition field)
protected void	initializeDynamicTypeStructures(org.mvel2.asm.MethodVisitor mv, org.drools.core.factmodel.ClassDefinition classDef)	Initializes the trait map and dynamic property map to empty values
protected void	updateTraitableField(org.mvel2.asm.MethodVisitor mv, org.drools.core.factmodel.ClassDefinition classDef, org.drools.core.factmodel.FieldDefinition fieldDef)
protected void	visitFieldOrGetter(org.mvel2.asm.MethodVisitor mv, org.drools.core.factmodel.ClassDefinition classDef, org.drools.core.factmodel.FieldDefinition field)

Methods inherited from class java.lang.Object

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

Field Detail

debug

protected boolean debug

Constructor Detail

DefaultBeanClassBuilder

public DefaultBeanClassBuilder()

DefaultBeanClassBuilder

public DefaultBeanClassBuilder(boolean debug)

Method Detail

buildClass

public byte[] buildClass(org.drools.core.factmodel.ClassDefinition classDef,
                         ClassLoader classLoader)
                  throws IOException,
                         SecurityException,
                         IllegalArgumentException,
                         ClassNotFoundException,
                         NoSuchMethodException,
                         IllegalAccessException,
                         InvocationTargetException,
                         InstantiationException,
                         NoSuchFieldException

Dynamically builds, defines and loads a class based on the given class definition

Specified by:

buildClass in interface org.drools.core.factmodel.ClassBuilder

Parameters:

classDef - the class definition object structure

Returns:

the Class instance for the given class definition

Throws:

IOException

InvocationTargetException

IllegalAccessException

NoSuchMethodException

ClassNotFoundException

IllegalArgumentException

SecurityException

NoSuchFieldException

InstantiationException

buildGettersAndSetters

protected void buildGettersAndSetters(org.mvel2.asm.ClassWriter cw,
                                      org.drools.core.factmodel.ClassDefinition classDef)

buildEqualityMethods

protected void buildEqualityMethods(org.mvel2.asm.ClassWriter cw,
                                    org.drools.core.factmodel.ClassDefinition classDef)

buildMetaData

protected void buildMetaData(org.mvel2.asm.ClassWriter cw,
                             org.drools.core.factmodel.ClassDefinition classDef)

buildFields

protected void buildFields(org.mvel2.asm.ClassWriter cw,
                           org.drools.core.factmodel.ClassDefinition classDef)

buildConstructors

protected void buildConstructors(org.mvel2.asm.ClassWriter cw,
                                 org.drools.core.factmodel.ClassDefinition classDef)

buildTraitMap

protected void buildTraitMap(org.mvel2.asm.ClassWriter cw,
                             org.drools.core.factmodel.ClassDefinition classDef)

A traitable class is a special class with support for dynamic properties and types. This method builds the trait map, containing the references to the proxies for each trait carried by an object at a given time.

Parameters:

cw -

classDef -

buildDynamicPropertyMap

protected void buildDynamicPropertyMap(org.mvel2.asm.ClassWriter cw,
                                       org.drools.core.factmodel.ClassDefinition def)

A traitable class is a special class with support for dynamic properties and types. This method builds the property map, containing the key/values pairs to implement any property defined in a trait interface but not supported by the traited class fields.

Parameters:

cw -

def -

buildFieldTMS

protected void buildFieldTMS(org.mvel2.asm.ClassWriter cw,
                             org.drools.core.factmodel.ClassDefinition def)

A traitable class is a special class with support for dynamic properties and types. A traitable class in logical mode provides additional control over the values and type(s) of its fields.

Parameters:

cw -

def -

buildClassHeader

protected org.mvel2.asm.ClassWriter buildClassHeader(ClassLoader classLoader,
                                                     org.drools.core.factmodel.ClassDefinition classDef)

Defines the class header for the given class definition

buildField

protected void buildField(org.mvel2.asm.ClassVisitor cw,
                          org.drools.core.factmodel.FieldDefinition fieldDef)

Creates the field defined by the given FieldDefinition

Parameters:

cw -

fieldDef -

buildDefaultConstructor

protected void buildDefaultConstructor(org.mvel2.asm.ClassVisitor cw,
                                       org.drools.core.factmodel.ClassDefinition classDef)

Creates a default constructor for the class

Parameters:

cw -

defaultConstructorStart

protected boolean defaultConstructorStart(org.mvel2.asm.MethodVisitor mv,
                                          org.drools.core.factmodel.ClassDefinition classDef)

initFieldWithDefaultValue

protected boolean initFieldWithDefaultValue(org.mvel2.asm.MethodVisitor mv,
                                            org.drools.core.factmodel.ClassDefinition classDef,
                                            org.drools.core.factmodel.FieldDefinition field)

initializeDynamicTypeStructures

protected void initializeDynamicTypeStructures(org.mvel2.asm.MethodVisitor mv,
                                               org.drools.core.factmodel.ClassDefinition classDef)

Initializes the trait map and dynamic property map to empty values

Parameters:

mv -

classDef -

buildConstructorWithFields

protected void buildConstructorWithFields(org.mvel2.asm.ClassVisitor cw,
                                          org.drools.core.factmodel.ClassDefinition classDef,
                                          Collection<org.drools.core.factmodel.FieldDefinition> fieldDefs)

Creates a constructor that takes and assigns values to all fields in the order they are declared.

Parameters:

cw -

classDef -

fieldConstructorStart

protected void fieldConstructorStart(org.mvel2.asm.MethodVisitor mv,
                                     org.drools.core.factmodel.ClassDefinition classDef,
                                     Collection<org.drools.core.factmodel.FieldDefinition> fieldDefs)

buildSetMethod

protected void buildSetMethod(org.mvel2.asm.ClassVisitor cw,
                              org.drools.core.factmodel.ClassDefinition classDef,
                              org.drools.core.factmodel.FieldDefinition fieldDef)

Creates the set method for the given field definition

Parameters:

cw -

classDef -

fieldDef -

buildGetMethod

protected void buildGetMethod(org.mvel2.asm.ClassVisitor cw,
                              org.drools.core.factmodel.ClassDefinition classDef,
                              org.drools.core.factmodel.FieldDefinition fieldDef)

Creates the get method for the given field definition

Parameters:

cw -

classDef -

fieldDef -

buildEquals

protected void buildEquals(org.mvel2.asm.ClassVisitor cw,
                           org.drools.core.factmodel.ClassDefinition classDef)

buildSystemHashCode

protected void buildSystemHashCode(org.mvel2.asm.ClassWriter cw)

buildHashCode

protected void buildHashCode(org.mvel2.asm.ClassVisitor cw,
                             org.drools.core.factmodel.ClassDefinition classDef)

buildToString

protected void buildToString(org.mvel2.asm.ClassVisitor cw,
                             org.drools.core.factmodel.ClassDefinition classDef)

buildFieldsToString

protected boolean buildFieldsToString(org.drools.core.factmodel.ClassDefinition classDef,
                                      org.mvel2.asm.MethodVisitor mv,
                                      boolean previous)

buildFieldToString

protected void buildFieldToString(org.drools.core.factmodel.FieldDefinition field,
                                  org.drools.core.factmodel.ClassDefinition classDef,
                                  org.mvel2.asm.MethodVisitor mv,
                                  boolean first)

buildClassAnnotations

protected void buildClassAnnotations(org.drools.core.factmodel.ClassDefinition classDef,
                                     org.mvel2.asm.ClassVisitor cw)

buildFieldAnnotations

protected void buildFieldAnnotations(org.drools.core.factmodel.FieldDefinition fieldDef,
                                     org.mvel2.asm.FieldVisitor fv)

addAnnotationAttribute

public static void addAnnotationAttribute(org.drools.core.factmodel.AnnotationDefinition ad,
                                          org.mvel2.asm.AnnotationVisitor av)

visitFieldOrGetter

protected void visitFieldOrGetter(org.mvel2.asm.MethodVisitor mv,
                                  org.drools.core.factmodel.ClassDefinition classDef,
                                  org.drools.core.factmodel.FieldDefinition field)

updateTraitableField

protected void updateTraitableField(org.mvel2.asm.MethodVisitor mv,
                                    org.drools.core.factmodel.ClassDefinition classDef,
                                    org.drools.core.factmodel.FieldDefinition fieldDef)