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Initialize Database Prodcut/Vendor name to empty string to avoid NPE 

git-svn-id: https://svn.apache.org/repos/asf/openjpa/trunk@675387 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Pinaki Poddar 2008-07-10 00:16:25 +00:00
parent c7a9063146
commit 89e7531398
1 changed files with 23 additions and 39 deletions
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62
openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/DB2Dictionary.java
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@ -72,8 +72,8 @@ public class DB2Dictionary
protected static final String useKeepExclusiveLockClause protected static final String useKeepExclusiveLockClause
= "USE AND KEEP EXCLUSIVE LOCKS"; = "USE AND KEEP EXCLUSIVE LOCKS";
protected static final String forReadOnlyClause = "FOR READ ONLY"; protected static final String forReadOnlyClause = "FOR READ ONLY";
protected String databaseProductName = null; protected String databaseProductName = "";
protected String databaseProductVersion = null; protected String databaseProductVersion = "";
protected int maj = 0; protected int maj = 0;
protected int min = 0; protected int min = 0;
@ -242,8 +242,8 @@ public class DB2Dictionary
super.connectedConfiguration(conn); super.connectedConfiguration(conn);
DatabaseMetaData metaData = conn.getMetaData(); DatabaseMetaData metaData = conn.getMetaData();
databaseProductName = metaData.getDatabaseProductName(); databaseProductName = nullSafe(metaData.getDatabaseProductName());
databaseProductVersion = metaData.getDatabaseProductVersion(); databaseProductVersion = nullSafe(metaData.getDatabaseProductVersion());
// Determine the type of DB2 database // Determine the type of DB2 database
// First check for AS/400 // First check for AS/400
@ -384,51 +384,32 @@ public class DB2Dictionary
} }
public boolean isDB2UDBV82OrLater() { public boolean isDB2UDBV82OrLater() {
boolean match = false; return (databaseProductVersion.indexOf("SQL") != -1
if (databaseProductName != null && || databaseProductName.indexOf("DB2/") != -1)
(databaseProductVersion.indexOf("SQL") != -1 && ((maj == 8 && min >= 2) || (maj >= 9));
|| databaseProductName.indexOf("DB2/") != -1)
&& ((maj == 8 && min >= 2) || (maj >= 9)))
match = true;
return match;
} }
public boolean isDB2ZOSV8xOrLater() { public boolean isDB2ZOSV8xOrLater() {
boolean match = false; return (databaseProductVersion.indexOf("DSN") != -1
if (databaseProductName != null && || databaseProductName.indexOf("DB2/") == -1)
(databaseProductVersion.indexOf("DSN") != -1 && maj >= 8;
|| databaseProductName.indexOf("DB2/") == -1)
&& maj >= 8)
match = true;
return match;
} }
public boolean isDB2ISeriesV5R3OrEarlier() { public boolean isDB2ISeriesV5R3OrEarlier() {
boolean match = false; return (databaseProductName.indexOf("AS") != -1
if (databaseProductName != null && && ((maj == 5 && min <=3) || maj < 5));
databaseProductName.indexOf("AS") != -1
&& ((maj == 5 && min <=3) || maj < 5))
match = true;
return match;
} }
public boolean isDB2ISeriesV5R4OrLater() { public boolean isDB2ISeriesV5R4OrLater() {
boolean match = false; return databaseProductName.indexOf("AS") != -1
if (databaseProductName != null && && (maj >=6 || (maj == 5 && min >=4));
databaseProductName.indexOf("AS") != -1
&& (maj >=6 || (maj == 5 && min >=4)))
match = true;
return match;
} }
public boolean isDB2UDBV81OrEarlier() { public boolean isDB2UDBV81OrEarlier() {
boolean match = false; return (databaseProductVersion.indexOf("SQL") != -1
if (databaseProductName != null && || databaseProductName.indexOf("DB2/") != -1)
(databaseProductVersion.indexOf("SQL") != -1 && ((maj == 8 && min <= 1) || maj < 8);
|| databaseProductName.indexOf("DB2/") != -1) &&
((maj == 8 && min <= 1) || maj < 8))
match = true;
return match;
} }
/** Get the version Major/Minor for the ISeries /** Get the version Major/Minor for the ISeries
@ -456,8 +437,7 @@ public class DB2Dictionary
String s2 = stringtokenizer.nextToken(); String s2 = stringtokenizer.nextToken();
min = Integer.parseInt(s2); min = Integer.parseInt(s2);
} }
} } else {
else {
index = databaseProductVersion.indexOf('0'); index = databaseProductVersion.indexOf('0');
if (index != -1) { if (index != -1) {
String s = databaseProductVersion.substring(index); String s = databaseProductVersion.substring(index);
@ -844,4 +824,8 @@ public class DB2Dictionary
idx.addColumn(pkColumn); idx.addColumn(pkColumn);
} }
} }
String nullSafe(String s) {
return s == null ? "" : s;
}
} }