org.picocontainer.gems.behaviors
Class HotSwappable<T>

java.lang.Object
  org.picocontainer.behaviors.AbstractBehavior<T>
      org.picocontainer.gems.behaviors.AsmHiddenImplementation<T>
          org.picocontainer.gems.behaviors.HotSwappable<T>

All Implemented Interfaces:

Serializable, org.objectweb.asm.Opcodes, Behavior<T>, ComponentAdapter<T>, ComponentLifecycle<T>, ComponentMonitorStrategy, LifecycleStrategy

public class HotSwappable<T>
extends AsmHiddenImplementation<T>

This component adapter makes it possible to hide the implementation of a real subject (behind a proxy). If the key of the component is of type Class and that class represents an interface, the proxy will only implement the interface represented by that Class. Otherwise (if the key is something else), the proxy will implement all the interfaces of the underlying subject. In any case, the proxy will also implement Swappable, making it possible to swap out the underlying subject at runtime.

Note that this class doesn't cache instances. If you want caching, use a Cached around this one.

Author:

Paul Hammant

See Also:

Serialized Form

Nested Class Summary

static class

HotSwappable.Swappable

Nested classes/interfaces inherited from interface org.picocontainer.ComponentAdapter

ComponentAdapter.NOTHING

Field Summary

Fields inherited from class org.picocontainer.behaviors.AbstractBehavior

delegate

Fields inherited from interface org.objectweb.asm.Opcodes

AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, 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, 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, INVOKEDYNAMIC_OWNER, 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, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7

Constructor Summary

HotSwappable(ComponentAdapter<T> delegate)

Method Summary

T	getComponentInstance(PicoContainer container, Type into)
String	getDescriptor()
T	getRealInstance()
protected HotSwappable.Swappable	getSwappable()
T	swapRealInstance(T instance)

Methods inherited from class org.picocontainer.gems.behaviors.AsmHiddenImplementation

makeProxy

Methods inherited from class org.picocontainer.behaviors.AbstractBehavior

accept, changeMonitor, componentHasLifecycle, currentMonitor, dispose, dispose, findAdapterOfType, getComponentImplementation, getComponentInstance, getComponentKey, getDelegate, hasLifecycle, isLazy, isStarted, start, start, stop, stop, toString, verify

Methods inherited from class java.lang.Object

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

Constructor Detail

HotSwappable

public HotSwappable(ComponentAdapter<T> delegate)

Method Detail

getSwappable

protected HotSwappable.Swappable getSwappable()

Overrides:

getSwappable in class AsmHiddenImplementation<T>

swapRealInstance

public T swapRealInstance(T instance)

getRealInstance

public T getRealInstance()

getComponentInstance

public T getComponentInstance(PicoContainer container,
                              Type into)

Specified by:

getComponentInstance in interface ComponentAdapter<T>

Overrides:

getComponentInstance in class AsmHiddenImplementation<T>

getDescriptor

public String getDescriptor()

Specified by:

getDescriptor in interface ComponentAdapter<T>

Overrides:

getDescriptor in class AsmHiddenImplementation<T>