BCMethod

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com.techtrader.modules.tools.bytecode
Class BCMethod

java.lang.Object
  com.techtrader.modules.tools.bytecode.BCEntity
      com.techtrader.modules.tools.bytecode.BCMethod

All Implemented Interfaces:: Constants, com.techtrader.modules.tools.bytecode.visitor.VisitAcceptor

public class BCMethod
extends BCEntity
implements Constants

Representation of a bytecode method of a class; a BCMethod can only be obtained from a BCClass. Note that this class has method to manipulate its declared excptions and code for convenience only; they can be manipulated directly through the ATTR_EXCEPTIONS and ATTR_CODE attributes.

Field Summary

private int _access


private int _descriptorIndex


private int _nameIndex


private BCClass _owner


Fields inherited from class com.techtrader.modules.tools.bytecode.BCEntity

Fields inherited from interface com.techtrader.modules.tools.bytecode.Constants

AALOAD, AASTORE, ACCESS_ABSTRACT, ACCESS_FINAL, ACCESS_INTERFACE, ACCESS_NATIVE, ACCESS_PRIVATE, ACCESS_PROTECTED, ACCESS_PUBLIC, ACCESS_STATIC, ACCESS_STRICT, ACCESS_SUPER, ACCESS_SYNCHRONIZED, ACCESS_TRANSIENT, ACCESS_VOLATILE, ACONST_NULL, ALOAD, ALOAD_0, ALOAD_1, ALOAD_2, ALOAD_3, ANEWARRAY, ARETURN, ARRAY_BOOLEAN, ARRAY_BYTE, ARRAY_CHAR, ARRAY_DOUBLE, ARRAY_FLOAT, ARRAY_INT, ARRAY_LONG, ARRAY_SHORT, ARRAYLENGTH, ASTORE, ASTORE_0, ASTORE_1, ASTORE_2, ASTORE_3, ATHROW, ATTR_CODE, ATTR_CONST, ATTR_DEPRECATED, ATTR_EXCEPTIONS, ATTR_INNERCLASS, ATTR_LINENUMBERS, ATTR_LOCALS, ATTR_SOURCE, ATTR_SYNTHETIC, ATTR_UNKNOWN, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DLOAD_0, DLOAD_1, DLOAD_2, DLOAD_3, DMUL, DNEG, DREM, DRETURN, DSTORE, DSTORE_0, DSTORE_1, DSTORE_2, DSTORE_3, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAD_0, FLOAD_1, FLOAD_2, FLOAD_3, FMUL, FNEG, FREM, FRETURN, FSTORE, FSTORE_0, FSTORE_1, FSTORE_2, FSTORE_3, FSUB, GETFIELD, GETSTATIC, GOTO, GOTO_W, 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_EQ, IF_GE, IF_GT, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IF_LE, IF_LT, IF_NE, IF_NONNULL, IF_NULL, IINC, ILOAD, ILOAD_0, ILOAD_1, ILOAD_2, ILOAD_3, IMUL, INEG, INSTANCEOF, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISTORE_0, ISTORE_1, ISTORE_2, ISTORE_3, ISUB, IUSHR, IXOR, JSR, JSR_W, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDC_W, LDC2_W, LDIV, LLOAD, LLOAD_0, LLOAD_1, LLOAD_2, LLOAD_3, LMUL, LNEG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSTORE_0, LSTORE_1, LSTORE_2, LSTORE_3, LSUB, LUSHR, LXOR, MATH_ADD, MATH_AND, MATH_DIV, MATH_MUL, MATH_NEG, MATH_OR, MATH_REM, MATH_SHL, MATH_SHR, MATH_SUB, MATH_USHR, MATH_XOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, OPCODE_NAMES, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SWAP, TABLESWITCH, VALID_MAGIC, WIDE

Constructor Summary

protected BCMethod(BCClass owner)
          Protected constructor.

Method Summary

void acceptVisit(com.techtrader.modules.tools.bytecode.visitor.BCVisitor visit)
          Accept a visit from a BCVisitor, calling the appropriate methods to notify the visitor that it has entered this entity, and to provide it with the proper callbacks for each sub-entity owned by this object.

Code addCode()
          Add a code block to this method; replaces the old block if it exists.

void addExceptionType(java.lang.Class type)
          Add an exception to those declared by this method.

void addExceptionTypeName(java.lang.String name)
          Add an exception to those declared by this method.

void addParamType(java.lang.Class type)
          Add a parameter type to this method.

void addParamTypeName(java.lang.String name)
          Add a parameter type to this method.

void clearExceptionTypes()
          Remove all declared exceptions from this method.

int getAccessFlags()
          Return the access flags for this class as a bit array of ACCESS_XXX constants.

Code getCode()
          Get the code for this method; returns null if none.

int getDescriptorIndex()
          Get the index in the constant pool of the UTF entry holding the descriptor of this method.

java.lang.String[] getExceptionTypeNames()
          Get the exception types thrown by this method.

java.lang.Class[] getExceptionTypes()
          Get the exception types thrown by this method.

java.lang.String getName()
          Get the name of this method.

int getNameIndex()
          Get the index in the constant pool of the UTF entry holding the name of this method.

BCClass getOwner()
          Get the BCClass that owns this method.

java.lang.String[] getParamTypeNames()
          Get the names of all the parameter types for this method.

java.lang.Class[] getParamTypes()
          Get the types of parameters this method takes.

com.techtrader.modules.tools.bytecode.lowlevel.ConstantPool getPool()
          Get the class constant pool; this method delegates to the owning class.

java.lang.Class getReturnType()
          Get the Class of the return type of this method.

java.lang.String getReturnTypeName()
          Get the name of the class type returned by this method.

Code importCode(Code code)
          Import a code block from another method.

protected void invalidate()
          Used when this field is deleted from its class.

boolean isAbstract()
          Manipulate the method access flags.

boolean isFinal()
          Manipulate the method access flags.

boolean isNative()
          Manipulate the method access flags.

boolean isPackage()
          Manipulate the method access flags.

boolean isPrivate()
          Manipulate the method access flags.

boolean isProtected()
          Manipulate the method access flags.

boolean isPublic()
          Manipulate the method access flags.

boolean isStatic()
          Manipulate the method access flags.

boolean isStrict()
          Manipulate the method access flags.

boolean isSynchronized()
          Manipulate the method access flags.

void makePackage()
          Manipulate the method access flags.

void makePrivate()
          Manipulate the method access flags.

void makeProtected()
          Manipulate the method access flags.

void makePublic()
          Manipulate the method access flags.

protected void readData(java.io.DataInput in)


boolean removeCode()
          Remove the code from this method; note that this actually removes the Code attribute completely; if you want to make an empty code block use the Code.clear() method.

boolean removeExceptionType(java.lang.Class type)
          Remove the given exception type from those that this method declares in its throws clause.

boolean removeExceptionTypeName(java.lang.String name)
          Remove the given exception type from those that this method declares in its throws clause.

boolean removeParamType(java.lang.Class type)
          Remove a parameter from this method.

boolean removeParamTypeName(java.lang.String name)
          Remove a parameter from this method.

void setAbstract(boolean on)
          Manipulate the method access flags.

void setAccessFlags(int access)
          Set the access flags for this class as a bit array of ACCESS_XXX constants.

void setDescriptor(java.lang.Class returnType, java.lang.Class[] paramTypes)
          Set this method descriptor; using this method is much more efficient than setting the return type and param types separately.

void setDescriptor(java.lang.String returnType, java.lang.String[] paramTypes)
          Set this method descriptor; using this method is much more efficient than setting the return type and param types separately.

void setDescriptorIndex(int index)
          Set the index in the constant pool of the UTF entry holding the descriptor of this method.

private void setDescriptorInternal(java.lang.String returnType, java.lang.String[] paramTypes)
          Internal helper method to set the descriptor of this method, using the internal form of the method return type and params

void setExceptionTypeNames(java.lang.String[] types)
          Set the exception types for this method.

void setExceptionTypes(java.lang.Class[] types)
          Set the exception types for this method.

void setFinal(boolean on)
          Manipulate the method access flags.

void setName(java.lang.String name)
          Set the name of this method.

void setNameIndex(int index)
          Set the index in the constant pool of the UTF entry holding the name of this method.

void setNative(boolean on)
          Manipulate the method access flags.

void setParamTypeNames(java.lang.String[] names)
          Set the parameter types of this method.

void setParamTypes(java.lang.Class[] types)
          Set the parameter type of this method.

void setReturnType(java.lang.Class type)
          Set the return type of this method.

void setReturnTypeName(java.lang.String name)
          Set the return type of this method.

void setStatic(boolean on)
          Manipulate the method access flags.

void setStrict(boolean on)
          Manipulate the method access flags.

void setSynchronized(boolean on)
          Manipulate the method access flags.

protected void writeData(java.io.DataOutput out)


Methods inherited from class com.techtrader.modules.tools.bytecode.BCEntity

addAttribute, clearAttributes, getAttribute, getAttributes, getAttributes, importAttribute, importAttributes, readAttributes, removeAttribute, removeAttribute, visitAttributes, writeAttributes

Methods inherited from class java.lang.Object

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

Field Detail

_owner

private BCClass _owner

_access

private int _access

_nameIndex

private int _nameIndex

_descriptorIndex

private int _descriptorIndex

Constructor Detail

BCMethod

protected BCMethod(BCClass owner)

Protected constructor.

Method Detail

invalidate

protected void invalidate()

Used when this field is deleted from its class.

getOwner

public BCClass getOwner()

Get the BCClass that owns this method.

getAccessFlags

public int getAccessFlags()

Return the access flags for this class as a bit array of ACCESS_XXX constants. This can be used to transfer access flags between methods without getting/setting each possible access flag.

setAccessFlags

public void setAccessFlags(int access)

Set the access flags for this class as a bit array of ACCESS_XXX constants. This can be used to transfer access flags between methods without getting/setting each possible access flag.