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SQLServer2005Dialect: modifications in order to support variable limit

This commit is contained in:
Yoryos Valotasios 2010-11-23 00:19:22 +02:00
parent 11a98623e5
commit b47dc5aeda
1 changed files with 15 additions and 4 deletions
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19
hibernate-core/src/main/java/org/hibernate/dialect/SQLServer2005Dialect.java
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@ -56,6 +56,17 @@ public class SQLServer2005Dialect extends SQLServerDialect {
registerFunction("row_number", new NoArgSQLFunction("row_number", StandardBasicTypes.INTEGER, true));
}
@Override
public int convertToFirstRowValue(int zeroBasedFirstResult) {
return zeroBasedFirstResult + 1;
}
@Override
public String getLimitString(String query, int offset, int limit) {
if (offset > 1 || limit > 1) return getLimitString(query, true);
return query;
}
/**
* Add a LIMIT clause to the given SQL SELECT (HHH-2655: ROW_NUMBER for Paging)
@ -81,7 +92,7 @@ public class SQLServer2005Dialect extends SQLServerDialect {
* @return A new SQL statement with the LIMIT clause applied.
*/
@Override
public String getLimitString(String querySqlString, int offset, int limit) {
public String getLimitString(String querySqlString, boolean hasOffset) {
StringBuilder sb = new StringBuilder(querySqlString.trim().toLowerCase());
int orderByIndex = sb.indexOf("order by");
@ -100,7 +111,8 @@ public class SQLServer2005Dialect extends SQLServerDialect {
// Wrap the query within a with statement:
sb.insert(0, "WITH query AS (").append(") SELECT * FROM query ");
sb.append("WHERE __hibernate_row_nr__ BETWEEN ").append(offset + 1).append(" AND ").append(limit);
//sb.append("WHERE __hibernate_row_nr__ BETWEEN ").append(offset + 1).append(" AND ").append(limit);
sb.append("WHERE __hibernate_row_nr__ BETWEEN ? AND ?");
return sb.toString();
}
@ -185,7 +197,6 @@ public class SQLServer2005Dialect extends SQLServerDialect {
@Override
public boolean supportsVariableLimit() {
return false;
return true;
}
}