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1 package com.daffodilwoods.daffodildb.server.sql99.ddl.schemadefinition;
2
3 import java.lang.reflect.*;
4
5 import com.daffodilwoods.daffodildb.server.serversystem.*;
6 import com.daffodilwoods.daffodildb.server.sql99.*;
7 import com.daffodilwoods.daffodildb.server.sql99.ddl.descriptors.*;
8 import com.daffodilwoods.daffodildb.server.sql99.token.*;
9 import com.daffodilwoods.database.resource.*;
10
11
19
20 public class externaljavareference implements com.daffodilwoods.daffodildb.utils.parser.StatementExecuter, routinebody, SQLexecutablestatement {
21 public javamethodsignature _Optjavamethodsignature0;
22 public externalmethodname _externalmethodname1;
23 public SNONRESERVEDWORD136444255 _SNONRESERVEDWORD1364442552;
24 public SRESERVEDWORD1206543922 _SRESERVEDWORD12065439223;
25
26 private SQLprocedurestatement sQLprocedurestatement;
27
28 private RoutineDescriptor routineDescriptor;
29 private int noOfJavaParameters;
30 private Class  [] javaParametersClass;
31
32 public Object run(Object object) throws DException {
33 if (_Server.ISONEDOLLARDB)
34 throw new DException("DSE2054", new Object [] {"External java procedure"});
35 _ServerSession currentSession = (_ServerSession) object;
36 Class clas = (Class ) _externalmethodname1.run(currentSession);
37 if (_Optjavamethodsignature0 != null) {
38 Class [] param = _Optjavamethodsignature0.javaParametersClass();
39 Method methodExist = checkForMethodExistance(clas, param);
40 }
41
42 StringBuffer External_Name = new StringBuffer ();
43 External_Name.append(_externalmethodname1);
44 if (_Optjavamethodsignature0 != null) {
45 External_Name.append(_Optjavamethodsignature0);
46 setJavaParameters();
47 setJavaParametersClass();
48 }
49 routineDescriptor.EXTERNAL_NAME = External_Name.toString();
50 routineDescriptor.EXTERNAL_LANGUAGE = "JAVA";
51 return null;
52 }
53
54 public void setJavaParameters() throws DException {
55 noOfJavaParameters = _Optjavamethodsignature0.getJavaParametersLength();
56 }
57
58 public int getJavaParameters() throws DException {
59 return noOfJavaParameters;
60 }
61
62 public void setJavaParametersClass() throws DException {
63 javaParametersClass = _Optjavamethodsignature0.javaParametersClass();
64 }
65
66 public Class [] getJavaParametersClass() throws DException {
67 return javaParametersClass;
68 }
69
70 public Method checkForMethodExistance(Class cl, Class [] params) throws DException {
71 Method ms = null;
72 String methodName = _externalmethodname1._javamethodname0.getMethodName();
73 try {
74 ms = cl.getDeclaredMethod(methodName, params);
75 } catch (SecurityException e) {
76 throw new DException("DSE8126", new Object [] {methodName, cl});
77 } catch (NoSuchMethodException ex1) {
78 throw new DException("DSE8126", new Object [] {methodName, cl});
79 }
80 return ms;
81 }
82
83 public void setRoutineDescriptor(RoutineDescriptor routineDescriptor) throws
84 DException {
85 this.routineDescriptor = routineDescriptor;
86 }
87
88 public Object clone() throws CloneNotSupportedException {
89 return this;
90 }
91
92 public SQLprocedurestatement[] getStatements() throws DException {
93 throw new UnsupportedOperationException ();
94 }
95
96 public String toString() {
97 StringBuffer str = new StringBuffer (" ");
98 str.append(_SRESERVEDWORD12065439223);
99 str.append(" ");
100 str.append(_SNONRESERVEDWORD1364442552);
101 str.append(" ");
102 str.append(_externalmethodname1);
103 if (_Optjavamethodsignature0 != null)
104 str.append(_Optjavamethodsignature0);
105 return str.toString();
106 }
107 }
108 |
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Java API By Example, From Geeks To Geeks.