/** * Compiles a method that overloads NodeSortRecord.extractValueFromDOM() */ private static MethodGenerator compileExtract(Vector sortObjects, NodeSortRecordGenerator sortRecord, ConstantPoolGen cpg, String className) { final InstructionList il = new InstructionList(); // String NodeSortRecord.extractValueFromDOM(dom,node,level); final CompareGenerator extractMethod = new CompareGenerator(ACC_PUBLIC | ACC_FINAL, com.sun.org.apache.bcel.internal.generic.Type.STRING, new com.sun.org.apache.bcel.internal.generic.Type[] { Util.getJCRefType(DOM_INTF_SIG), com.sun.org.apache.bcel.internal.generic.Type.INT, com.sun.org.apache.bcel.internal.generic.Type.INT, Util.getJCRefType(TRANSLET_SIG), com.sun.org.apache.bcel.internal.generic.Type.INT }, new String[] { "dom", "current", "level", "translet", "last" }, "extractValueFromDOM", className, il, cpg); // Values needed for the switch statement final int levels = sortObjects.size(); final int match[] = new int[levels]; final InstructionHandle target[] = new InstructionHandle[levels]; InstructionHandle tblswitch = null; // Compile switch statement only if the key has multiple levels if (levels > 1) { // Put the parameter to the swtich statement on the stack il.append(new ILOAD(extractMethod.getLocalIndex("level"))); // Append the switch statement here later on tblswitch = il.append(new NOP()); } // Append all the cases for the switch statment for (int level = 0; level < levels; level++) { match[level] = level; final Sort sort = (Sort)sortObjects.elementAt(level); target[level] = il.append(NOP); sort.translateSelect(sortRecord, extractMethod); il.append(ARETURN); } // Compile def. target for switch statement if key has multiple levels if (levels > 1) { // Append the default target - it will _NEVER_ be reached InstructionHandle defaultTarget = il.append(new PUSH(cpg, EMPTYSTRING)); il.insert(tblswitch,new TABLESWITCH(match, target, defaultTarget)); il.append(ARETURN); } return extractMethod; }
/** * Compiles a method that overloads NodeSortRecord.extractValueFromDOM() */ private static MethodGenerator compileExtract(Vector<Sort> sortObjects, NodeSortRecordGenerator sortRecord, ConstantPoolGen cpg, String className) { final InstructionList il = new InstructionList(); // String NodeSortRecord.extractValueFromDOM(dom,node,level); final CompareGenerator extractMethod = new CompareGenerator(ACC_PUBLIC | ACC_FINAL, com.sun.org.apache.bcel.internal.generic.Type.STRING, new com.sun.org.apache.bcel.internal.generic.Type[] { Util.getJCRefType(DOM_INTF_SIG), com.sun.org.apache.bcel.internal.generic.Type.INT, com.sun.org.apache.bcel.internal.generic.Type.INT, Util.getJCRefType(TRANSLET_SIG), com.sun.org.apache.bcel.internal.generic.Type.INT }, new String[] { "dom", "current", "level", "translet", "last" }, "extractValueFromDOM", className, il, cpg); // Values needed for the switch statement final int levels = sortObjects.size(); final int match[] = new int[levels]; final InstructionHandle target[] = new InstructionHandle[levels]; InstructionHandle tblswitch = null; // Compile switch statement only if the key has multiple levels if (levels > 1) { // Put the parameter to the swtich statement on the stack il.append(new ILOAD(extractMethod.getLocalIndex("level"))); // Append the switch statement here later on tblswitch = il.append(new NOP()); } // Append all the cases for the switch statment for (int level = 0; level < levels; level++) { match[level] = level; final Sort sort = sortObjects.elementAt(level); target[level] = il.append(NOP); sort.translateSelect(sortRecord, extractMethod); il.append(ARETURN); } // Compile def. target for switch statement if key has multiple levels if (levels > 1) { // Append the default target - it will _NEVER_ be reached InstructionHandle defaultTarget = il.append(new PUSH(cpg, EMPTYSTRING)); il.insert(tblswitch,new TABLESWITCH(match, target, defaultTarget)); il.append(ARETURN); } return extractMethod; }