Examples of IfInstruction

com.sun.org.apache.bcel.internal.generic.IfInstruction
Super class for the IFxxx family of instructions. @version $Id: IfInstruction.java,v 1.1.2.1 2005/07/31 23:46:04 jeffsuttor Exp $ @author M. Dahm
org.apache.bcel.generic.IfInstruction
Super class for the IFxxx family of instructions. @version $Id: IfInstruction.java 386056 2006-03-15 11:31:56Z tcurdt $ @author M. Dahm
org.teiid.query.processor.proc.IfInstruction

This instruction an holds an if block and an else block and a criteria that determines which block will be executed. These blocks are {@link Program} objects that could containnested if-else block. Therefore, this ProgramInstruction implements an arbitrarily deep if-else if-....else block.

During processing, the Criteria is evaluated and if it evaluates to true, the "if" block is executed else the "else" block if there is one is executed. These programs are placed on the {@link ProgramEnvironment#getProgramStack stack}.
org.teiid.query.processor.xml.IfInstruction

This instruction holds a List of Criteria, and for each Criteria there is a {@link Program} that will be executed. Therefore, this ProcessorInstructionimplements an arbitrarily deep if-else if-....else block.

During processing, the Criteria are iterated through, in order. When one evaluates to true, that Criteria's Program is placed on to the Program {@link ProcessorEnvironment#getProgramStack stack}, and the loop is broken - this simulates the if-else if-... behavior. An optional "else" or "default" Program can be added via the {@link #addDefaultChoiceSubProgram addDefaultChoiceSubProgram} method - this is the optional "else" block at the end of an if-else if-... construct.
serp.bytecode.IfInstruction
An if instruction such as ifnull, ifeq, etc. @author Abe White

Examples of org.teiid.query.processor.xml.IfInstruction

                WhileInstruction whileInst = (WhileInstruction)inst;
                childProgram = whileInst.getBlockProgram();
                getProgramStats(childProgram, map);
            }
            else if (inst instanceof IfInstruction) {
                IfInstruction ifInst = (IfInstruction)inst;
                
                getProgramStats(ifInst.getElseProgram(), map);
                
                for (int then = 0; then < ifInst.getThenCount(); then++) {
                    childProgram = ifInst.getThenProgram(then);
                    Condition condition = ifInst.getThenCondition(then);
                    if (!(condition instanceof RecurseProgramCondition)) {
                        getProgramStats(childProgram, map);    
                    }
                }
            }

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Examples of org.teiid.query.processor.xml.IfInstruction

        WhileInstruction i9 = new WhileInstruction("xmltest.rs");         //$NON-NLS-1$


        //need to move this up here so it can be referenced by "If" instruction
        ProcessorInstruction i17 = new MoveCursorInstruction("xmltest.rs"); //$NON-NLS-1$


        IfInstruction i10 = new IfInstruction( );
        descriptor = NodeDescriptor.createNodeDescriptor("Item", null, AddNodeInstruction.ELEMENT, null, null, null,false, null, MappingNodeConstants.NORMALIZE_TEXT_PRESERVE);//$NON-NLS-1$
        ProcessorInstruction i11 = new AddNodeInstruction(descriptor);
        ProcessorInstruction i12 = new MoveDocInstruction(MoveDocInstruction.DOWN);
        descriptor = NodeDescriptor.createNodeDescriptor("ItemID", null, AddNodeInstruction.ATTRIBUTE, null, null, null,false, null, MappingNodeConstants.NORMALIZE_TEXT_PRESERVE);//$NON-NLS-1$
        ProcessorInstruction i13 = new AddNodeInstruction(descriptor, new ElementSymbol("xmltest.rs.itemNum"));//$NON-NLS-1$
        descriptor = NodeDescriptor.createNodeDescriptor("Name", null, AddNodeInstruction.ELEMENT, null, null, null,false, null, MappingNodeConstants.NORMALIZE_TEXT_PRESERVE);//$NON-NLS-1$
        ProcessorInstruction i14 = new AddNodeInstruction(descriptor, new ElementSymbol("xmltest.rs.itemName"));//$NON-NLS-1$
        descriptor = NodeDescriptor.createNodeDescriptor("Quantity", null, AddNodeInstruction.ELEMENT, null, null, null,false, null, MappingNodeConstants.NORMALIZE_TEXT_PRESERVE);//$NON-NLS-1$
        ProcessorInstruction i15 = new AddNodeInstruction(descriptor, new ElementSymbol("xmltest.rs.itemQuantity")); //$NON-NLS-1$       
        ProcessorInstruction i16 = new MoveDocInstruction(MoveDocInstruction.UP);


        ProcessorInstruction i18 = new MoveDocInstruction(MoveDocInstruction.UP);
        ProcessorInstruction i19 = new MoveDocInstruction(MoveDocInstruction.UP);
        ProcessorInstruction i20 = new MoveDocInstruction(MoveDocInstruction.UP);
        ProcessorInstruction i21 = new EndDocumentInstruction();


        
        // Stitch them together


        Program program = new Program();
        program.addInstruction(i0);
        program.addInstruction(i1);
        program.addInstruction(i2);
        program.addInstruction(i3);
        program.addInstruction(i4);
        program.addInstruction(i5);
        program.addInstruction(i6);
        program.addInstruction(i7);
        program.addInstruction(i8);
        program.addInstruction(i9);


        Program whileProgram = new Program();
        i9.setBlockProgram(whileProgram);
        whileProgram.addInstruction(i10);


        Program thenProgram = new Program();
        Condition cond = new CriteriaCondition(crit, thenProgram); 
        i10.addCondition(cond);


        thenProgram.addInstruction(i11);
        thenProgram.addInstruction(i12);
        thenProgram.addInstruction(i13);
        thenProgram.addInstruction(i14);

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Examples of serp.bytecode.IfInstruction

                case JavaTypes.CALENDAR:
                    // if (sm != null)
                    //   sm.proxyDetachedDeserialized (<index>);
                    loadManagedInstance(code, false);
                    code.getfield().setField(SM, SMTYPE);
                    IfInstruction ifins = code.ifnull();
                    loadManagedInstance(code, false);
                    code.getfield().setField(SM, SMTYPE);
                    code.constant().setValue(fmd.getIndex());
                    code.invokeinterface().setMethod(SMTYPE,
                        "proxyDetachedDeserialized", void.class,
                        new Class[]{ int.class });
                    ifins.setTarget(code.nop());
            }
        }
    }

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Examples of serp.bytecode.IfInstruction

            // if (sm != null)
            //   if (sm.writeDetached (out))
            //      return;
            loadManagedInstance(code, false);
            code.getfield().setField(SM, SMTYPE);
            IfInstruction ifnull = code.ifnull();
            loadManagedInstance(code, false);
            code.getfield().setField(SM, SMTYPE);
            code.aload().setParam(0);
            code.invokeinterface().setMethod(SMTYPE, "writeDetached",
                boolean.class, outargs);
            go2 = code.ifeq();
            code.vreturn();


            // else
            //   out.writeObject (pcGetDetachedState ());
            Class[] objargs = new Class[]{ Object.class };
            ifnull.setTarget(code.aload().setParam(0));
            loadManagedInstance(code, false);
            code.invokevirtual().setMethod(PRE + "GetDetachedState",
                Object.class, null);
            code.invokeinterface().setMethod(ObjectOutput.class,
                "writeObject", void.class, objargs);

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Examples of serp.bytecode.IfInstruction

                case JavaTypes.CALENDAR:
                    // if (sm != null)
                    //   sm.proxyDetachedDeserialized (<index>);
                    loadManagedInstance(code, false);
                    code.getfield().setField(SM, SMTYPE);
                    IfInstruction ifins = code.ifnull();
                    loadManagedInstance(code, false);
                    code.getfield().setField(SM, SMTYPE);
                    code.constant().setValue(fmd.getIndex());
                    code.invokeinterface().setMethod(SMTYPE,
                        "proxyDetachedDeserialized", void.class,
                        new Class[]{ int.class });
                    ifins.setTarget(code.nop());
            }
        }
    }

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Examples of serp.bytecode.IfInstruction

            // if (sm != null)
            //   if (sm.writeDetached (out))
            //      return;
            loadManagedInstance(code, false);
            code.getfield().setField(SM, SMTYPE);
            IfInstruction ifnull = code.ifnull();
            loadManagedInstance(code, false);
            code.getfield().setField(SM, SMTYPE);
            code.aload().setParam(0);
            code.invokeinterface().setMethod(SMTYPE, "writeDetached",
                boolean.class, outargs);
            go2 = code.ifeq();
            code.vreturn();


            // else
            //   out.writeObject (pcGetDetachedState ());
            Class[] objargs = new Class[]{ Object.class };
            ifnull.setTarget(code.aload().setParam(0));
            loadManagedInstance(code, false);
            code.invokevirtual().setMethod(PRE + "GetDetachedState",
                Object.class, null);
            code.invokeinterface().setMethod(ObjectOutput.class,
                "writeObject", void.class, objargs);

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Examples of serp.bytecode.IfInstruction

                case JavaTypes.CALENDAR:
                    // if (sm != null)
                    //   sm.proxyDetachedDeserialized (<index>);
                    loadManagedInstance(code, false);
                    code.getfield().setField(SM, SMTYPE);
                    IfInstruction ifins = code.ifnull();
                    loadManagedInstance(code, false);
                    code.getfield().setField(SM, SMTYPE);
                    code.constant().setValue(fmd.getIndex());
                    code.invokeinterface().setMethod(SMTYPE,
                        "proxyDetachedDeserialized", void.class,
                        new Class[]{ int.class });
                    ifins.setTarget(code.nop());
            }
        }
    }

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Examples of serp.bytecode.IfInstruction

            // if (sm != null)
            //   if (sm.writeDetached (out))
            //      return;
            loadManagedInstance(code, false);
            code.getfield().setField(SM, SMTYPE);
            IfInstruction ifnull = code.ifnull();
            loadManagedInstance(code, false);
            code.getfield().setField(SM, SMTYPE);
            code.aload().setParam(0);
            code.invokeinterface().setMethod(SMTYPE, "writeDetached",
                boolean.class, outargs);
            go2 = code.ifeq();
            code.vreturn();


            // else
            //   out.writeObject (pcGetDetachedState ());
            Class[] objargs = new Class[]{ Object.class };
            ifnull.setTarget(code.aload().setParam(0));
            loadManagedInstance(code, false);
            code.invokevirtual().setMethod(PRE + "GetDetachedState",
                Object.class, null);
            code.invokeinterface().setMethod(ObjectOutput.class,
                "writeObject", void.class, objargs);

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Examples of serp.bytecode.IfInstruction

                case JavaTypes.CALENDAR:
                    // if (sm != null)
                    //   sm.proxyDetachedDeserialized (<index>);
                    loadManagedInstance(code, false);
                    code.getfield().setField(SM, SMTYPE);
                    IfInstruction ifins = code.ifnull();
                    loadManagedInstance(code, false);
                    code.getfield().setField(SM, SMTYPE);
                    code.constant().setValue(fmd.getIndex());
                    code.invokeinterface().setMethod(SMTYPE,
                        "proxyDetachedDeserialized", void.class,
                        new Class[]{ int.class });
                    ifins.setTarget(code.nop());
            }
        }
    }

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Examples of serp.bytecode.IfInstruction

            // if (sm != null)
            //   if (sm.writeDetached (out))
            //      return;
            loadManagedInstance(code, false);
            code.getfield().setField(SM, SMTYPE);
            IfInstruction ifnull = code.ifnull();
            loadManagedInstance(code, false);
            code.getfield().setField(SM, SMTYPE);
            code.aload().setParam(0);
            code.invokeinterface().setMethod(SMTYPE, "writeDetached",
                boolean.class, outargs);
            go2 = code.ifeq();
            code.vreturn();


            // else
            //   out.writeObject (pcGetDetachedState ());
            Class[] objargs = new Class[]{ Object.class };
            ifnull.setTarget(code.aload().setParam(0));
            loadManagedInstance(code, false);
            code.invokevirtual().setMethod(PRE + "GetDetachedState",
                Object.class, null);
            code.invokeinterface().setMethod(ObjectOutput.class,
                "writeObject", void.class, objargs);

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