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Code Issues Releases Wiki Activity

bug fixed for null contextClassLoader

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This commit is contained in:
wenshao
2013-07-26 11:41:46 +08:00
parent 19358f2294
commit 02b7870c6a
5 changed files with 86 additions and 33 deletions
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src/main/java/com/alibaba/druid/sql/dialect/db2/parser/DB2SelectParser.java
-1
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@@ -19,7 +19,6 @@ import com.alibaba.druid.sql.ast.SQLExpr;
import com.alibaba.druid.sql.ast.SQLSetQuantifier;
import com.alibaba.druid.sql.ast.statement.SQLSelectQuery;
import com.alibaba.druid.sql.dialect.db2.ast.stmt.DB2SelectQueryBlock;
import com.alibaba.druid.sql.parser.ParserException;
import com.alibaba.druid.sql.parser.SQLExprParser;
import com.alibaba.druid.sql.parser.SQLSelectParser;
import com.alibaba.druid.sql.parser.Token;
src/main/java/com/alibaba/druid/sql/visitor/ParameterizedOutputVisitorUtils.java
+19 -16
View File
@@ -44,7 +44,7 @@ public class ParameterizedOutputVisitorUtils {
if (statementList.size() == 0) {
return sql;
}
SQLStatement stmt = statementList.get(0);
StringBuilder out = new StringBuilder();
@@ -62,7 +62,7 @@ public class ParameterizedOutputVisitorUtils {
if (JdbcUtils.MYSQL.equals(dbType)) {
return new MySqlParameterizedOutputVisitor(out);
}
if (JdbcUtils.MARIADB.equals(dbType)) {
return new MySqlParameterizedOutputVisitor(out);
}
@@ -74,11 +74,11 @@ public class ParameterizedOutputVisitorUtils {
if (JdbcUtils.POSTGRESQL.equals(dbType)) {
return new PGParameterizedOutputVisitor(out);
}
if (JdbcUtils.SQL_SERVER.equals(dbType) || JdbcUtils.JTDS.equals(dbType)) {
return new SQLServerParameterizedOutputVisitor(out);
}
if (JdbcUtils.DB2.equals(dbType)) {
return new DB2ParameterizedOutputVisitor(out);
}
@@ -99,16 +99,19 @@ public class ParameterizedOutputVisitorUtils {
}
public static SQLBinaryOpExpr merge(SQLBinaryOpExpr x) {
SQLExpr left = x.getLeft();
SQLExpr right = x.getRight();
SQLObject parent = x.getParent();
if (x.getLeft() instanceof SQLLiteralExpr && x.getRight() instanceof SQLLiteralExpr) {
if (left instanceof SQLLiteralExpr && right instanceof SQLLiteralExpr) {
if (x.getOperator() == SQLBinaryOperator.Equality || x.getOperator() == SQLBinaryOperator.NotEqual) {
x.getLeft().getAttributes().put(ATTR_PARAMS_SKIP, true);
x.getRight().getAttributes().put(ATTR_PARAMS_SKIP, true);
left.putAttribute(ATTR_PARAMS_SKIP, true);
right.putAttribute(ATTR_PARAMS_SKIP, true);
}
return x;
}
if (x.getRight() instanceof SQLLiteralExpr) {
if (right instanceof SQLLiteralExpr) {
x = new SQLBinaryOpExpr(x.getLeft(), x.getOperator(), new SQLVariantRefExpr("?"));
x.setParent(parent);
}
@@ -141,17 +144,17 @@ public class ParameterizedOutputVisitorUtils {
// ID = ? OR ID = ? => ID = ?
if (x.getOperator() == SQLBinaryOperator.BooleanOr) {
if ((x.getLeft() instanceof SQLBinaryOpExpr) && (x.getRight() instanceof SQLBinaryOpExpr)) {
SQLBinaryOpExpr left = (SQLBinaryOpExpr) x.getLeft();
SQLBinaryOpExpr right = (SQLBinaryOpExpr) x.getRight();
if ((left instanceof SQLBinaryOpExpr) && (right instanceof SQLBinaryOpExpr)) {
SQLBinaryOpExpr leftBinary = (SQLBinaryOpExpr) x.getLeft();
SQLBinaryOpExpr rightBinary = (SQLBinaryOpExpr) x.getRight();
if (mergeEqual(left, right)) {
return left;
if (mergeEqual(leftBinary, rightBinary)) {
return leftBinary;
}
if (isLiteralExpr(left.getLeft()) && left.getOperator() == SQLBinaryOperator.BooleanOr) {
if (mergeEqual(left.getRight(), right)) {
return left;
if (isLiteralExpr(leftBinary.getLeft()) && leftBinary.getOperator() == SQLBinaryOperator.BooleanOr) {
if (mergeEqual(leftBinary.getRight(), right)) {
return leftBinary;
}
}
}