本文整理汇总了Java中java.sql.ParameterMetaData.isNullable方法的典型用法代码示例。如果您正苦于以下问题：Java ParameterMetaData.isNullable方法的具体用法？Java ParameterMetaData.isNullable怎么用？Java ParameterMetaData.isNullable使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类java.sql.ParameterMetaData的用法示例。
在下文中一共展示了ParameterMetaData.isNullable方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: setProcedure
import java.sql.ParameterMetaData; //导入方法依赖的package包/类
/**
* @param procedure The procedure to set.
* @param columns columns
* @exception Exception Description of Exception
*/
public void setProcedure(String procedure, ArrayList columns) throws Exception {
if (isconfigured) { return; }
if (poolConnectionHandler != null) {
con = poolConnectionHandler.getConnection();
if (!isConnected()) { throw new Exception(
"JDBCLogger::setProcedure(), Given connection isnt connected to database !"); }
}
this.procedure = procedure;
// prepare call
CallableStatement cStmt = this.createCallableStatement(columns.size());
JDBCLogColumn logcol;
ParameterMetaData pmd;
// 2.6.2005 jschmied
// ParameterMetaData is supported on different levels by Oracle
try {
// J2SDK 1.4+; limited support by Oracle drivers 10.x and 9.x
pmd = cStmt.getParameterMetaData();
num = pmd.getParameterCount();
if (num >= 1) {
// oracle 10.1.0.4 has some stubs in ParameterMetaData,
// try if a function throws a UnsupportedFeature exception
pmd.getParameterType(1);
pmd.getParameterTypeName(1);
pmd.isNullable(1);
}
} catch (Exception e) {
pmd = null;
num = columns.size();
}
logcols = new ArrayList(num);
for (int i = 1; i <= num; i++) {
logcol = new JDBCLogColumn();
JDBCColumnStorage col = (JDBCColumnStorage) columns.get(i - 1);
logcol.name = col.column.toUpperCase();
if (pmd == null) {
logcol.type = col.type;
logcol.sqlType = col.sqlType;
logcol.nullable = true; // assume true
} else {
logcol.type = pmd.getParameterTypeName(i);
logcol.sqlType = pmd.getParameterType(i);
logcol.nullable = (pmd.isNullable(i) == ParameterMetaData.parameterNullable);
}
logcol.isWritable = true;
logcols.add(logcol);
}
cStmt.close();
freeConnection();
isconfigured = true;
}