Ejemplo n.º 1
0
 /**
  * public boolean bdbIsPriKeyFieldNullOrZero() { return theField == null; // or zero or false, as
  * appropriate // or if no primary key but has superclass: return
  * super.bdbIsPriKeyFieldNullOrZero(); }
  */
 private void genBdbIsPriKeyFieldNullOrZero() {
   MethodVisitor mv = cv.visitMethod(ACC_PUBLIC, "bdbIsPriKeyFieldNullOrZero", "()Z", null, null);
   mv.visitCode();
   if (priKeyField != null) {
     mv.visitVarInsn(ALOAD, 0);
     mv.visitFieldInsn(GETFIELD, className, priKeyField.name, priKeyField.type.getDescriptor());
     Label l0 = new Label();
     if (isRefType(priKeyField.type)) {
       mv.visitJumpInsn(IFNONNULL, l0);
     } else {
       genBeforeCompareToZero(mv, priKeyField.type);
       mv.visitJumpInsn(IFNE, l0);
     }
     mv.visitInsn(ICONST_1);
     Label l1 = new Label();
     mv.visitJumpInsn(GOTO, l1);
     mv.visitLabel(l0);
     mv.visitInsn(ICONST_0);
     mv.visitLabel(l1);
   } else if (hasPersistentSuperclass) {
     mv.visitVarInsn(ALOAD, 0);
     mv.visitMethodInsn(INVOKESPECIAL, superclassName, "bdbIsPriKeyFieldNullOrZero", "()Z");
   } else {
     mv.visitInsn(ICONST_0);
   }
   mv.visitInsn(IRETURN);
   mv.visitMaxs(1, 1);
   mv.visitEnd();
 }
Ejemplo n.º 2
0
 /**
  * public void bdbSetField(Object o, int field, int superLevel, boolean isSecField, Object value)
  * { if (superLevel > 0) { // if has superclass: super.bdbSetField (o, field, superLevel - 1,
  * isSecField, value); } else if (isSecField) { switch (field) { case 0: f2 = ((Integer)
  * value).intValue(); case 1: f3 = (String) value; case 2: f4 = (String) value; } } else { switch
  * (field) { case 0: f5 = ((Integer) value).intValue(); case 1: f6 = (String) value; case 2: f7 =
  * (String) value; } } }
  */
 private void genBdbSetField() {
   MethodVisitor mv =
       cv.visitMethod(
           ACC_PUBLIC, "bdbSetField", "(Ljava/lang/Object;IIZLjava/lang/Object;)V", null, null);
   mv.visitCode();
   mv.visitVarInsn(ILOAD, 3);
   Label l0 = new Label();
   mv.visitJumpInsn(IFLE, l0);
   if (hasPersistentSuperclass) {
     mv.visitVarInsn(ALOAD, 0);
     mv.visitVarInsn(ALOAD, 1);
     mv.visitVarInsn(ILOAD, 2);
     mv.visitVarInsn(ILOAD, 3);
     mv.visitInsn(ICONST_1);
     mv.visitInsn(ISUB);
     mv.visitVarInsn(ILOAD, 4);
     mv.visitVarInsn(ALOAD, 5);
     mv.visitMethodInsn(
         INVOKESPECIAL, className, "bdbSetField", "(Ljava/lang/Object;IIZLjava/lang/Object;)V");
   }
   mv.visitInsn(RETURN);
   mv.visitLabel(l0);
   mv.visitVarInsn(ILOAD, 4);
   Label l2 = new Label();
   mv.visitJumpInsn(IFEQ, l2);
   Label l1 = new Label();
   genSetFieldSwitch(mv, secKeyFields, l1);
   mv.visitLabel(l2);
   genSetFieldSwitch(mv, nonKeyFields, l1);
   mv.visitLabel(l1);
   mv.visitInsn(RETURN);
   mv.visitMaxs(2, 6);
   mv.visitEnd();
 }
Ejemplo n.º 3
0
 /**
  * public void bdbReadXxxKeyFields(EntityInput input, int startField, int endField, int
  * superLevel) { // ... if (superLevel <= 0) { switch (startField) { case 0: keyField1 =
  * input.readInt(); if (endField == 0) break; case 1: keyField2 = (String) input.readObject(); if
  * (endField == 1) break; case 2: keyField3 = input.readInt(); } }
  */
 private void genReadFieldSwitch(MethodVisitor mv, List<FieldInfo> fields) {
   int nFields = fields.size();
   if (nFields > 0) {
     mv.visitVarInsn(ILOAD, 4);
     Label pastSwitch = new Label();
     mv.visitJumpInsn(IFGT, pastSwitch);
     Label[] labels = new Label[nFields];
     for (int i = 0; i < nFields; i += 1) {
       labels[i] = new Label();
     }
     mv.visitVarInsn(ILOAD, 2);
     mv.visitTableSwitchInsn(0, nFields - 1, pastSwitch, labels);
     for (int i = 0; i < nFields; i += 1) {
       FieldInfo field = fields.get(i);
       mv.visitLabel(labels[i]);
       genReadField(mv, field);
       if (i < nFields - 1) {
         Label nextCase = labels[i + 1];
         mv.visitVarInsn(ILOAD, 3);
         if (i == 0) {
           mv.visitJumpInsn(IFNE, nextCase);
         } else {
           switch (i) {
             case 1:
               mv.visitInsn(ICONST_1);
               break;
             case 2:
               mv.visitInsn(ICONST_2);
               break;
             case 3:
               mv.visitInsn(ICONST_3);
               break;
             case 4:
               mv.visitInsn(ICONST_4);
               break;
             case 5:
               mv.visitInsn(ICONST_5);
               break;
             default:
               mv.visitIntInsn(BIPUSH, i);
           }
           mv.visitJumpInsn(IF_ICMPNE, nextCase);
         }
         mv.visitJumpInsn(GOTO, pastSwitch);
       }
     }
     mv.visitLabel(pastSwitch);
   }
 }
Ejemplo n.º 4
0
 /**
  * public void bdbWriteNonKeyFields(EntityOutput output) { super.bdbWriteNonKeyFields(output); //
  * if has super output.writeInt(nonKeyField1); output.writeObject(nonKeyField2, null); // etc }
  */
 private void genBdbWriteNonKeyFields() {
   MethodVisitor mv =
       cv.visitMethod(
           ACC_PUBLIC,
           "bdbWriteNonKeyFields",
           "(Lcom/sleepycat/persist/impl/EntityOutput;)V",
           null,
           null);
   mv.visitCode();
   if (hasPersistentSuperclass) {
     mv.visitVarInsn(ALOAD, 0);
     mv.visitVarInsn(ALOAD, 1);
     mv.visitMethodInsn(
         INVOKESPECIAL,
         superclassName,
         "bdbWriteNonKeyFields",
         "(Lcom/sleepycat/persist/impl/EntityOutput;)V");
   }
   if (isCompositeKey) {
     for (FieldInfo field : nonKeyFields) {
       genWriteSimpleKeyField(mv, field);
       /* Ignore non-simple (illegal) types for composite key. */
     }
   } else {
     for (FieldInfo field : nonKeyFields) {
       genWriteField(mv, field);
     }
   }
   mv.visitInsn(RETURN);
   mv.visitMaxs(2, 2);
   mv.visitEnd();
 }
Ejemplo n.º 5
0
 /**
  * public void bdbWriteSecKeyFields(EntityOutput output) {
  * output.registerPriKeyObject(priKeyField); // if an object
  * super.bdbWriteSecKeyFields(EntityOutput output); // if has super output.writeInt(secKeyField1);
  * output.writeObject(secKeyField2, null); // etc }
  */
 private void genBdbWriteSecKeyFields() {
   MethodVisitor mv =
       cv.visitMethod(
           ACC_PUBLIC,
           "bdbWriteSecKeyFields",
           "(Lcom/sleepycat/persist/impl/EntityOutput;)V",
           null,
           null);
   mv.visitCode();
   if (priKeyField != null && isRefType(priKeyField.type)) {
     genRegisterPrimaryKey(mv, false);
   }
   if (hasPersistentSuperclass) {
     mv.visitVarInsn(ALOAD, 0);
     mv.visitVarInsn(ALOAD, 1);
     mv.visitMethodInsn(
         INVOKESPECIAL,
         superclassName,
         "bdbWriteSecKeyFields",
         "(Lcom/sleepycat/persist/impl/EntityOutput;)V");
   }
   for (FieldInfo field : secKeyFields) {
     genWriteField(mv, field);
   }
   mv.visitInsn(RETURN);
   mv.visitMaxs(2, 2);
   mv.visitEnd();
 }
Ejemplo n.º 6
0
 /**
  * mv.visitVarInsn(ILOAD, 2); Label l0 = new Label(); Label l1 = new Label(); Label l2 = new
  * Label(); mv.visitTableSwitchInsn(0, 2, TheDefLabel, new Label[] { l0, l1, l2 });
  * mv.visitLabel(l0); mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(ALOAD, 5);
  * mv.visitTypeInsn(CHECKCAST, "java/lang/Integer"); mv.visitMethodInsn(INVOKEVIRTUAL,
  * "java/lang/Integer", "intValue", "()I"); mv.visitFieldInsn(PUTFIELD, TheClassName, "f2", "I");
  * mv.visitLabel(l1); mv.visitVarInsn(ALOAD, 0); mv.visitVarInsn(ALOAD, 5);
  * mv.visitTypeInsn(CHECKCAST, "java/lang/String"); mv.visitFieldInsn(PUTFIELD, TheClassName,
  * "f3", "Ljava/lang/String;"); mv.visitLabel(l2); mv.visitVarInsn(ALOAD, 0);
  * mv.visitVarInsn(ALOAD, 5); mv.visitTypeInsn(CHECKCAST, "java/lang/String");
  * mv.visitFieldInsn(PUTFIELD, TheClassName, "f4", "Ljava/lang/String;");
  */
 private void genSetFieldSwitch(MethodVisitor mv, List<FieldInfo> fields, Label defaultLabel) {
   int nFields = fields.size();
   if (nFields == 0) {
     mv.visitJumpInsn(GOTO, defaultLabel);
     return;
   }
   Label[] labels = new Label[nFields];
   for (int i = 0; i < nFields; i += 1) {
     labels[i] = new Label();
   }
   mv.visitVarInsn(ILOAD, 2);
   mv.visitTableSwitchInsn(0, nFields - 1, defaultLabel, labels);
   for (int i = 0; i < nFields; i += 1) {
     FieldInfo field = fields.get(i);
     mv.visitLabel(labels[i]);
     mv.visitVarInsn(ALOAD, 0);
     mv.visitVarInsn(ALOAD, 5);
     if (isRefType(field.type)) {
       mv.visitTypeInsn(CHECKCAST, getTypeInstName(field.type));
     } else {
       int sort = field.type.getSort();
       mv.visitTypeInsn(CHECKCAST, getPrimitiveWrapperClass(sort).replace('.', '/'));
       genUnwrapPrimitive(mv, sort);
     }
     mv.visitFieldInsn(PUTFIELD, className, field.name, field.type.getDescriptor());
     mv.visitInsn(RETURN);
   }
 }
Ejemplo n.º 7
0
 /**
  * public Object bdbNewArray(int len) { return new TheClass[len]; // or if abstract: return null;
  * }
  */
 private void genBdbNewArray() {
   MethodVisitor mv =
       cv.visitMethod(ACC_PUBLIC, "bdbNewArray", "(I)Ljava/lang/Object;", null, null);
   mv.visitCode();
   if (isAbstract) {
     mv.visitInsn(ACONST_NULL);
     mv.visitInsn(ARETURN);
     mv.visitMaxs(1, 2);
   } else {
     mv.visitVarInsn(ILOAD, 1);
     mv.visitTypeInsn(ANEWARRAY, className);
     mv.visitInsn(ARETURN);
     mv.visitMaxs(1, 2);
     mv.visitEnd();
   }
 }
Ejemplo n.º 8
0
 /** public Object bdbNewInstance() { return new TheClass(); // or if abstract: return null; } */
 private void genBdbNewInstance() {
   MethodVisitor mv =
       cv.visitMethod(ACC_PUBLIC, "bdbNewInstance", "()Ljava/lang/Object;", null, null);
   mv.visitCode();
   if (isAbstract) {
     mv.visitInsn(ACONST_NULL);
     mv.visitInsn(ARETURN);
     mv.visitMaxs(1, 1);
   } else {
     mv.visitTypeInsn(NEW, className);
     mv.visitInsn(DUP);
     mv.visitMethodInsn(INVOKESPECIAL, className, "<init>", "()V");
     mv.visitInsn(ARETURN);
     mv.visitMaxs(2, 1);
   }
   mv.visitEnd();
 }
Ejemplo n.º 9
0
 /** // if has super: if (superLevel != 0) { super.bdbReadXxxKeyFields(..., superLevel - 1); } */
 private void genReadSuperKeyFields(MethodVisitor mv, boolean areSecKeyFields) {
   if (hasPersistentSuperclass) {
     Label next = new Label();
     mv.visitVarInsn(ILOAD, 4);
     mv.visitJumpInsn(IFEQ, next);
     mv.visitVarInsn(ALOAD, 0);
     mv.visitVarInsn(ALOAD, 1);
     mv.visitVarInsn(ILOAD, 2);
     mv.visitVarInsn(ILOAD, 3);
     mv.visitVarInsn(ILOAD, 4);
     mv.visitInsn(ICONST_1);
     mv.visitInsn(ISUB);
     String name = areSecKeyFields ? "bdbReadSecKeyFields" : "bdbReadNonKeyFields";
     mv.visitMethodInsn(
         INVOKESPECIAL, superclassName, name, "(Lcom/sleepycat/persist/impl/EntityInput;III)V");
     mv.visitLabel(next);
   }
 }
Ejemplo n.º 10
0
 /**
  * Outputs code in a static block to register the prototype instance:
  *
  * <p>static { EnhancedAccessor.registerClass(TheClassName, new TheClass()); // or for an abstract
  * class: EnhancedAccessor.registerClass(TheClassName, null); }
  */
 private void genStaticBlock() {
   MethodVisitor mv = cv.visitMethod(ACC_STATIC, "<clinit>", "()V", null, null);
   mv.visitCode();
   if (staticBlockMethod != null) {
     mv.visitMethodInsn(INVOKESTATIC, className, staticBlockMethod, "()V");
   }
   mv.visitLdcInsn(className.replace('/', '.'));
   if (isAbstract) {
     mv.visitInsn(ACONST_NULL);
   } else {
     mv.visitTypeInsn(NEW, className);
     mv.visitInsn(DUP);
     mv.visitMethodInsn(INVOKESPECIAL, className, "<init>", "()V");
   }
   mv.visitMethodInsn(
       INVOKESTATIC,
       "com/sleepycat/persist/impl/EnhancedAccessor",
       "registerClass",
       "(Ljava/lang/String;Lcom/sleepycat/persist/impl/Enhanced;)V");
   mv.visitInsn(RETURN);
   mv.visitMaxs(3, 0);
   mv.visitEnd();
 }
Ejemplo n.º 11
0
 /**
  * Generates writing of a simple type key field, or returns false if the key field is not a simple
  * type (i.e., it is a composite key type).
  *
  * <p>output.writeInt(theField); // and other primitives // or
  * output.writeInt(theField.intValue()); // and other simple types // or returns false
  */
 private boolean genWriteSimpleKeyField(MethodVisitor mv, FieldInfo field) {
   if (genWritePrimitiveField(mv, field)) {
     return true;
   }
   String fieldClassName = field.type.getClassName();
   if (!isSimpleRefType(fieldClassName)) {
     return false;
   }
   mv.visitVarInsn(ALOAD, 1);
   mv.visitVarInsn(ALOAD, 0);
   mv.visitFieldInsn(GETFIELD, className, field.name, field.type.getDescriptor());
   Integer sort = PRIMITIVE_WRAPPERS.get(fieldClassName);
   if (sort != null) {
     genUnwrapPrimitive(mv, sort);
     genWritePrimitive(mv, sort);
   } else if (fieldClassName.equals(Date.class.getName())) {
     mv.visitMethodInsn(INVOKEVIRTUAL, "java/util/Date", "getTime", "()J");
     genWritePrimitive(mv, Type.LONG);
   } else if (fieldClassName.equals(String.class.getName())) {
     mv.visitMethodInsn(
         INVOKEINTERFACE,
         "com/sleepycat/persist/impl/EntityOutput",
         "writeString",
         "(Ljava/lang/String;)Lcom/sleepycat/bind/tuple/TupleOutput;");
     mv.visitInsn(POP);
   } else if (fieldClassName.equals(BigInteger.class.getName())) {
     mv.visitMethodInsn(
         INVOKEINTERFACE,
         "com/sleepycat/persist/impl/EntityOutput",
         "writeBigInteger",
         "(Ljava/math/BigInteger;)Lcom/sleepycat/bind/tuple/TupleOutput;");
     mv.visitInsn(POP);
   } else {
     throw new IllegalStateException(fieldClassName);
   }
   return true;
 }
Ejemplo n.º 12
0
 /** output.writeInt(field); // and other primitives // or output.writeObject(field, null); */
 private void genWriteField(MethodVisitor mv, FieldInfo field) {
   mv.visitVarInsn(ALOAD, 1);
   mv.visitVarInsn(ALOAD, 0);
   mv.visitFieldInsn(GETFIELD, className, field.name, field.type.getDescriptor());
   int sort = field.type.getSort();
   if (sort == Type.OBJECT || sort == Type.ARRAY) {
     mv.visitInsn(ACONST_NULL);
     mv.visitMethodInsn(
         INVOKEINTERFACE,
         "com/sleepycat/persist/impl/EntityOutput",
         "writeObject",
         "(Ljava/lang/Object;Lcom/sleepycat/persist/impl/Format;)V");
   } else {
     genWritePrimitive(mv, sort);
   }
 }
Ejemplo n.º 13
0
 /**
  * public void bdbReadSecKeyFields(EntityInput input, int startField, int endField, int
  * superLevel) { input.registerPriKeyObject(priKeyField); // if an object // if has super: if
  * (superLevel != 0) { super.bdbReadSecKeyFields(..., superLevel - 1); } if (superLevel <= 0) {
  * switch (startField) { case 0: secKeyField1 = input.readInt(); if (endField == 0) break; case 1:
  * secKeyField2 = (String) input.readObject(); if (endField == 1) break; case 2: secKeyField3 =
  * input.readInt(); } } }
  */
 private void genBdbReadSecKeyFields() {
   MethodVisitor mv =
       cv.visitMethod(
           ACC_PUBLIC,
           "bdbReadSecKeyFields",
           "(Lcom/sleepycat/persist/impl/EntityInput;III)V",
           null,
           null);
   mv.visitCode();
   if (priKeyField != null && isRefType(priKeyField.type)) {
     genRegisterPrimaryKey(mv, true);
   }
   genReadSuperKeyFields(mv, true);
   genReadFieldSwitch(mv, secKeyFields);
   mv.visitInsn(RETURN);
   mv.visitMaxs(5, 5);
   mv.visitEnd();
 }
Ejemplo n.º 14
0
 /**
  * Generates reading of a simple type key field, or returns false if the key field is not a simple
  * type (i.e., it is a composite key type).
  *
  * <p>field = input.readInt(); // and other primitives // or field =
  * Integer.valueOf(input.readInt()); // and other simple types // or returns false
  */
 private boolean genReadSimpleKeyField(MethodVisitor mv, FieldInfo field) {
   if (genReadPrimitiveField(mv, field)) {
     return true;
   }
   String fieldClassName = field.type.getClassName();
   if (!isSimpleRefType(fieldClassName)) {
     return false;
   }
   Integer sort = PRIMITIVE_WRAPPERS.get(fieldClassName);
   if (sort != null) {
     mv.visitVarInsn(ALOAD, 0);
     mv.visitVarInsn(ALOAD, 1);
     genReadPrimitive(mv, sort);
     genWrapPrimitive(mv, sort);
   } else if (fieldClassName.equals(Date.class.getName())) {
     /* Date is a special case because we use NEW instead of valueOf. */
     mv.visitVarInsn(ALOAD, 0);
     mv.visitTypeInsn(NEW, "java/util/Date");
     mv.visitInsn(DUP);
     mv.visitVarInsn(ALOAD, 1);
     genReadPrimitive(mv, Type.LONG);
     mv.visitMethodInsn(INVOKESPECIAL, "java/util/Date", "<init>", "(J)V");
   } else if (fieldClassName.equals(String.class.getName())) {
     mv.visitVarInsn(ALOAD, 0);
     mv.visitVarInsn(ALOAD, 1);
     mv.visitMethodInsn(
         INVOKEINTERFACE,
         "com/sleepycat/persist/impl/EntityInput",
         "readString",
         "()Ljava/lang/String;");
   } else if (fieldClassName.equals(BigInteger.class.getName())) {
     mv.visitVarInsn(ALOAD, 0);
     mv.visitVarInsn(ALOAD, 1);
     mv.visitMethodInsn(
         INVOKEINTERFACE,
         "com/sleepycat/persist/impl/EntityInput",
         "readBigInteger",
         "()Ljava/math/BigInteger;");
   } else {
     throw new IllegalStateException(fieldClassName);
   }
   mv.visitFieldInsn(PUTFIELD, className, field.name, field.type.getDescriptor());
   return true;
 }
Ejemplo n.º 15
0
 /**
  * Call this method before comparing a non-reference operand to zero as an int, for example, with
  * IFNE, IFEQ, IFLT, etc. If the operand is a long, float or double, this method will compare it
  * to zero and leave the result as an int operand.
  */
 private static void genBeforeCompareToZero(MethodVisitor mv, Type type) {
   switch (type.getSort()) {
     case Type.LONG:
       mv.visitInsn(LCONST_0);
       mv.visitInsn(LCMP);
       break;
     case Type.FLOAT:
       mv.visitInsn(FCONST_0);
       mv.visitInsn(FCMPL);
       break;
     case Type.DOUBLE:
       mv.visitInsn(DCONST_0);
       mv.visitInsn(DCMPL);
       break;
   }
 }
Ejemplo n.º 16
0
 /**
  * public void bdbReadNonKeyFields(EntityInput input, int startField, int endField, int
  * superLevel) { // if has super: if (superLevel != 0) { super.bdbReadNonKeyFields(..., superLevel
  * - 1); } nonKeyField1 = input.readInt(); nonKeyField2 = (String) input.readObject(); // etc //
  * or like bdbReadSecKeyFields if not a composite key class }
  */
 private void genBdbReadNonKeyFields() {
   MethodVisitor mv =
       cv.visitMethod(
           ACC_PUBLIC,
           "bdbReadNonKeyFields",
           "(Lcom/sleepycat/persist/impl/EntityInput;III)V",
           null,
           null);
   mv.visitCode();
   if (isCompositeKey) {
     for (FieldInfo field : nonKeyFields) {
       genReadSimpleKeyField(mv, field);
       /* Ignore non-simple (illegal) types for composite key. */
     }
   } else {
     genReadSuperKeyFields(mv, false);
     genReadFieldSwitch(mv, nonKeyFields);
   }
   mv.visitInsn(RETURN);
   mv.visitMaxs(5, 5);
   mv.visitEnd();
 }
Ejemplo n.º 17
0
 /**
  * mv.visitVarInsn(ILOAD, 2); Label l0 = new Label(); Label l1 = new Label(); Label l2 = new
  * Label(); mv.visitTableSwitchInsn(0, 2, TheDefLabel, new Label[] { l0, l1, l2 });
  * mv.visitLabel(l0); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, TheClassName, "f2",
  * "I"); mv.visitMethodInsn(INVOKESTATIC, "java/lang/Integer", "valueOf",
  * "(I)Ljava/lang/Integer;"); mv.visitInsn(ARETURN); mv.visitLabel(l1); mv.visitVarInsn(ALOAD, 0);
  * mv.visitFieldInsn(GETFIELD, TheClassName, "f3", "Ljava/lang/String;"); mv.visitInsn(ARETURN);
  * mv.visitLabel(l2); mv.visitVarInsn(ALOAD, 0); mv.visitFieldInsn(GETFIELD, TheClassName, "f4",
  * "Ljava/lang/String;"); mv.visitInsn(ARETURN);
  */
 private void genGetFieldSwitch(MethodVisitor mv, List<FieldInfo> fields, Label defaultLabel) {
   int nFields = fields.size();
   if (nFields == 0) {
     mv.visitJumpInsn(GOTO, defaultLabel);
     return;
   }
   Label[] labels = new Label[nFields];
   for (int i = 0; i < nFields; i += 1) {
     labels[i] = new Label();
   }
   mv.visitVarInsn(ILOAD, 2);
   mv.visitTableSwitchInsn(0, nFields - 1, defaultLabel, labels);
   for (int i = 0; i < nFields; i += 1) {
     FieldInfo field = fields.get(i);
     mv.visitLabel(labels[i]);
     mv.visitVarInsn(ALOAD, 0);
     mv.visitFieldInsn(GETFIELD, className, field.name, field.type.getDescriptor());
     if (!isRefType(field.type)) {
       genWrapPrimitive(mv, field.type.getSort());
     }
     mv.visitInsn(ARETURN);
   }
 }
Ejemplo n.º 18
0
 /**
  * public void bdbReadPriKeyField(EntityInput input, Format format) { theField = (TheFieldClass)
  * input.readKeyObject(format); // or theField = input.readInt(); // and other simple types // or
  * if no primary key but has superclass: super.bdbReadPriKeyField(input, format); }
  */
 private void genBdbReadPriKeyField() {
   MethodVisitor mv =
       cv.visitMethod(
           ACC_PUBLIC,
           "bdbReadPriKeyField",
           "(Lcom/sleepycat/persist/impl/EntityInput;" + "Lcom/sleepycat/persist/impl/Format;)V",
           null,
           null);
   mv.visitCode();
   if (priKeyField != null) {
     if (!genReadSimpleKeyField(mv, priKeyField)) {
       /* For a non-simple type, call EntityInput.readKeyObject. */
       mv.visitVarInsn(ALOAD, 0);
       mv.visitVarInsn(ALOAD, 1);
       mv.visitVarInsn(ALOAD, 2);
       mv.visitMethodInsn(
           INVOKEINTERFACE,
           "com/sleepycat/persist/impl/EntityInput",
           "readKeyObject",
           "(Lcom/sleepycat/persist/impl/Format;)" + "Ljava/lang/Object;");
       mv.visitTypeInsn(CHECKCAST, getTypeInstName(priKeyField.type));
       mv.visitFieldInsn(PUTFIELD, className, priKeyField.name, priKeyField.type.getDescriptor());
     }
   } else if (hasPersistentSuperclass) {
     mv.visitVarInsn(ALOAD, 0);
     mv.visitVarInsn(ALOAD, 1);
     mv.visitVarInsn(ALOAD, 2);
     mv.visitMethodInsn(
         INVOKESPECIAL,
         superclassName,
         "bdbReadPriKeyField",
         "(Lcom/sleepycat/persist/impl/EntityInput;" + "Lcom/sleepycat/persist/impl/Format;)V");
   }
   mv.visitInsn(RETURN);
   mv.visitMaxs(3, 3);
   mv.visitEnd();
 }
Ejemplo n.º 19
0
 private void genWritePrimitive(MethodVisitor mv, int sort) {
   switch (sort) {
     case Type.BOOLEAN:
       mv.visitMethodInsn(
           INVOKEINTERFACE,
           "com/sleepycat/persist/impl/EntityOutput",
           "writeBoolean",
           "(Z)Lcom/sleepycat/bind/tuple/TupleOutput;");
       break;
     case Type.CHAR:
       mv.visitMethodInsn(
           INVOKEINTERFACE,
           "com/sleepycat/persist/impl/EntityOutput",
           "writeChar",
           "(I)Lcom/sleepycat/bind/tuple/TupleOutput;");
       break;
     case Type.BYTE:
       mv.visitMethodInsn(
           INVOKEINTERFACE,
           "com/sleepycat/persist/impl/EntityOutput",
           "writeByte",
           "(I)Lcom/sleepycat/bind/tuple/TupleOutput;");
       break;
     case Type.SHORT:
       mv.visitMethodInsn(
           INVOKEINTERFACE,
           "com/sleepycat/persist/impl/EntityOutput",
           "writeShort",
           "(I)Lcom/sleepycat/bind/tuple/TupleOutput;");
       break;
     case Type.INT:
       mv.visitMethodInsn(
           INVOKEINTERFACE,
           "com/sleepycat/persist/impl/EntityOutput",
           "writeInt",
           "(I)Lcom/sleepycat/bind/tuple/TupleOutput;");
       break;
     case Type.LONG:
       mv.visitMethodInsn(
           INVOKEINTERFACE,
           "com/sleepycat/persist/impl/EntityOutput",
           "writeLong",
           "(J)Lcom/sleepycat/bind/tuple/TupleOutput;");
       break;
     case Type.FLOAT:
       mv.visitMethodInsn(
           INVOKEINTERFACE,
           "com/sleepycat/persist/impl/EntityOutput",
           "writeSortedFloat",
           "(F)Lcom/sleepycat/bind/tuple/TupleOutput;");
       break;
     case Type.DOUBLE:
       mv.visitMethodInsn(
           INVOKEINTERFACE,
           "com/sleepycat/persist/impl/EntityOutput",
           "writeSortedDouble",
           "(D)Lcom/sleepycat/bind/tuple/TupleOutput;");
       break;
     default:
       throw new IllegalStateException(String.valueOf(sort));
   }
   /* The write methods always return 'this' and we always discard it. */
   mv.visitInsn(POP);
 }