org.hotswap.agent.javassist.expr

Class Handler

java.lang.Object

org.hotswap.agent.javassist.expr.Expr

org.hotswap.agent.javassist.expr.Handler

All Implemented Interfaces:

Opcode

public class Handler
extends Expr

A catch clause or a finally block.

Field Summary

Fields inherited from interface org.hotswap.agent.javassist.bytecode.Opcode

AALOAD, AASTORE, ACONST_NULL, ALOAD, ALOAD_0, ALOAD_1, ALOAD_2, ALOAD_3, ANEWARRAY, ARETURN, ARRAYLENGTH, ASTORE, ASTORE_0, ASTORE_1, ASTORE_2, ASTORE_3, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, 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, CHECKCAST, 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, ILOAD_0, ILOAD_1, ILOAD_2, ILOAD_3, IMUL, INEG, INSTANCEOF, INVOKEDYNAMIC, 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, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, STACK_GROW, SWAP, T_BOOLEAN, T_BYTE, T_DOUBLE, T_FLOAT, T_CHAR, T_INT, T_LONG, T_SHORT, TABLESWITCH, WIDE

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Handler(ExceptionTable et, int nth, CodeIterator it, CtClass declaring, MethodInfo m) Undocumented constructor.

Method Summary

Modifier and Type	Method and Description
String	getFileName() Returns the source file containing the catch clause.
int	getLineNumber() Returns the source line number of the catch clause.
CtClass	getType() Returns the type handled by the catch clause.
void	insertBefore(String src) Inserts bytecode at the beginning of the catch clause.
boolean	isFinally() Returns true if this is a finally block.
CtClass[]	mayThrow() Returns the list of exceptions that the catch clause may throw.
void	replace(String statement) This method has not been implemented yet.
CtBehavior	where() Returns the method or constructor containing the catch clause.

Methods inherited from class org.hotswap.agent.javassist.expr.Expr

edited, getConstPool, getEnclosingClass, indexOfBytecode, locals, replace, replace0, runEditor, stack, withinStatic

Methods inherited from class java.lang.Object

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

Constructor Detail

Handler

protected Handler(ExceptionTable et,
                  int nth,
                  CodeIterator it,
                  CtClass declaring,
                  MethodInfo m)

Undocumented constructor. Do not use; internal-use only.

Method Detail

where

public CtBehavior where()

Returns the method or constructor containing the catch clause.

Overrides:

where in class Expr

getLineNumber

public int getLineNumber()

Returns the source line number of the catch clause.

Overrides:

getLineNumber in class Expr

Returns:

-1 if this information is not available.

getFileName

public String getFileName()

Returns the source file containing the catch clause.

Overrides:

getFileName in class Expr

Returns:

null if this information is not available.

mayThrow

public CtClass[] mayThrow()

Returns the list of exceptions that the catch clause may throw.

Overrides:

mayThrow in class Expr

getType

public CtClass getType()
                throws NotFoundException

Returns the type handled by the catch clause. If this is a finally block, null is returned.

Throws:

NotFoundException

isFinally

public boolean isFinally()

Returns true if this is a finally block.

replace

public void replace(String statement)
             throws CannotCompileException

This method has not been implemented yet.

Specified by:

replace in class Expr

Parameters:

statement - a Java statement except try-catch.

Throws:

CannotCompileException

insertBefore

public void insertBefore(String src)
                  throws CannotCompileException

Inserts bytecode at the beginning of the catch clause. The caught exception is stored in $1.

Parameters:

src - the source code representing the inserted bytecode. It must be a single statement or block.

Throws:

CannotCompileException