SingleColumnRSE (fj-core 8.3.1-SNAPSHOT API)

java.lang.Object
- org.fugerit.java.core.db.dao.rse.SingleColumnRSE<K>

All Implemented Interfaces:

RSExtractor<K>

Direct Known Subclasses:

BigDecimalRSE, DoubleRSE, IntegerRSE, LongRSE, StringRSE
```
public abstract class SingleColumnRSE<K>
extends Object
implements RSExtractor<K>
```
Result Set Extractor for query where just one column should be get. Can be used the column name or the column index. Default is using column index at position 1.

Author:

Fugerit

Field Summary

Fields
Modifier and Type Field Description

static int DEFAULT_COLUMN_INDEX

static int USE_NAME_INDEX

Constructor Summary

Constructors
Modifier Constructor Description

protected SingleColumnRSE()

protected SingleColumnRSE(int index)

protected SingleColumnRSE(String name)

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`protected abstract K`	`convert(Object o)`
`K`	`extractNext(ResultSet rs)`
`int`	`getColumnIndex()`
`String`	`getColumnName()`
`boolean`	`isUseColumnIndex()`
`boolean`	`isUseColumnName()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- DEFAULT_COLUMN_INDEX
```
public static final int DEFAULT_COLUMN_INDEX
```
  See Also:
  
  Constant Field Values
- USE_NAME_INDEX
```
public static final int USE_NAME_INDEX
```
  See Also:
  
  Constant Field Values

Constructor Detail

SingleColumnRSE

protected SingleColumnRSE(int index)

SingleColumnRSE

protected SingleColumnRSE(String name)

SingleColumnRSE
```
protected SingleColumnRSE()
```

Method Detail

getColumnName
```
public String getColumnName()
```

getColumnIndex
```
public int getColumnIndex()
```

isUseColumnIndex
```
public boolean isUseColumnIndex()
```

isUseColumnName
```
public boolean isUseColumnName()
```

convert

protected abstract K convert(Object o)

extractNext

public K extractNext(ResultSet rs)
              throws SQLException

Specified by:: extractNext in interface RSExtractor<K>
Throws:: SQLException