use of org.whole.lang.bindings.BindingManagerFactory in project whole by wholeplatform.
the class ResultSetIterator method lookahead.
public IEntity lookahead() {
if (nextEntity != null)
return nextEntity;
clearLookaheadScope();
try {
if (!resultSet.next()) {
resultSet.getStatement().close();
return null;
}
} catch (SQLException e) {
return null;
}
BindingManagerFactory factory = BindingManagerFactory.instance;
SQLEntityFactory ef = SQLEntityFactory.instance;
try {
getBindings().wEnterScope(lookaheadScope(), true);
ResultSetMetaData metaData = resultSet.getMetaData();
nextEntity = factory.createTuple();
for (int i = 1; i <= metaData.getColumnCount(); i++) {
IEntity value;
switch(metaData.getColumnType(i)) {
case Types.ARRAY:
value = ef.createArrayValue(resultSet.getArray(i).getArray());
break;
case Types.BIT:
case Types.BOOLEAN:
value = ef.createBooleanValue(resultSet.getBoolean(i));
break;
case Types.TINYINT:
value = ef.createTinyIntValue(resultSet.getByte(i));
break;
case Types.SMALLINT:
value = ef.createSmallIntValue(resultSet.getShort(i));
break;
case Types.INTEGER:
value = ef.createIntValue(resultSet.getInt(i));
break;
case Types.BIGINT:
value = ef.createBigIntValue(resultSet.getLong(i));
break;
case Types.FLOAT:
case Types.DOUBLE:
value = ef.createDoubleValue(resultSet.getDouble(i));
break;
case Types.REAL:
value = ef.createRealValue(resultSet.getFloat(i));
break;
case Types.NUMERIC:
case Types.DECIMAL:
value = ef.createDecimalValue(resultSet.getBigDecimal(i));
break;
case Types.CHAR:
case Types.VARCHAR:
case Types.LONGVARCHAR:
value = ef.createStringValue(resultSet.getString(i));
break;
case Types.BINARY:
case Types.VARBINARY:
case Types.LONGVARBINARY:
value = ef.createBinaryValue(resultSet.getBytes(i));
break;
case Types.DATE:
value = ef.createDateValue(resultSet.getDate(i));
break;
case Types.TIME:
value = ef.createTimeValue(resultSet.getTime(i));
break;
case Types.TIMESTAMP:
value = ef.createTimestampValue(resultSet.getTimestamp(i));
break;
case Types.BLOB:
value = ef.createBlobValue(resultSet.getBlob(i));
break;
case Types.CLOB:
value = ef.createClobValue(resultSet.getClob(i));
break;
case Types.NULL:
value = ef.createNullValue();
break;
default:
value = ef.createRawValue(resultSet.getObject(i));
break;
}
if (resultSet.wasNull())
value = CommonsEntityFactory.instance.createResolver();
String label = i <= labels.length && labels[i - 1] != null ? labels[i - 1] : metaData.getColumnLabel(i);
getBindings().wDef(label, value);
nextEntity.wAdd(value);
}
getBindings().wExitScope();
} catch (SQLException e) {
throw new IllegalStateException();
}
return nextEntity;
}
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