DataSourceCollection

java.lang.Object
- edu.unh.sdb.datasource.DataSourceCollection

```
public class DataSourceCollection
extends java.lang.Object
```
The DataSourceCollection class provides for a list of datasources with customary list functionality. The list was intended to be populated either by reading a database or by processing some Data Description Language. The list is only allowed to grow. Elements are never deleted from the list.

Constructor Summary

Constructors
Constructor and Description

DataSourceCollection()

Constructors
Constructor and Description
`DataSourceCollection()`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`add(DataSource ds)` Add a DataSource to the end of the list
`DataSource`	`get(int i)` Returns the DataSource at the designated index or null DataSource object if no more exists.
`DataSource`	`get(java.lang.String s)` Returns the DataSource object corresponding to the DataSource named by the string.
`DataSource`	`getDataSource(java.lang.String s)` Returns the DataSource object corresponding to the DataSource named by the string
`DataSource`	`getElementAt(int i)` Returns the DataSource at the designated index or null DataSource object if no more exists.
`int`	`indexOf(java.lang.String s)` Returns the integer index of the datasource corresponding to the DataSource named by the string.
`int`	`indexOfName(java.lang.String s)` Returns the integer index value for the DataSource denoted by string.
`void`	`merge(DataSourceCollection dsColl)` if name exists in both collections, the new one is discarded
`boolean`	`nameExists(java.lang.String s)` Returns true if DataSource named by String is in the list
`DataSource`	`next()` returns the next DataSource object or null DataSource object if no more exists
`void`	`rewind()` Resets the index to beginning of the list
`int`	`size()` Returns the number of elements stored this DataSource collection as an integer
`java.lang.String`	`toString()` for debugging - prints the total number of datasource collections stored.

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

- Constructor Detail
  - DataSourceCollection
```
public DataSourceCollection()
```
- Method Detail
  - next
```
public DataSource next()
```
    returns the next DataSource object or null DataSource object if no more exists
  - getElementAt
```
public DataSource getElementAt(int i)
```
    Returns the DataSource at the designated index or null DataSource object if no more exists. Returns a null DataSource object if index does not exist.
  - get
```
public DataSource get(int i)
```
    Returns the DataSource at the designated index or null DataSource object if no more exists. Returns a null DataSource object if index does not exist. This is a shorthand method to getElementAt() added for compatibility with SDB naming conventions.
  - add
```
public void add(DataSource ds)
```
    Add a DataSource to the end of the list
  - rewind
```
public void rewind()
```
    Resets the index to beginning of the list
  - indexOfName
```
public int indexOfName(java.lang.String s)
```
    Returns the integer index value for the DataSource denoted by string. Returns -1 if the DataSource name does not exist
  - nameExists
```
public boolean nameExists(java.lang.String s)
```
    Returns true if DataSource named by String is in the list
  - indexOf
```
public int indexOf(java.lang.String s)
```
    Returns the integer index of the datasource corresponding to the DataSource named by the string. If name does not exist, a null DataSource will be returned
  - getDataSource
```
public DataSource getDataSource(java.lang.String s)
```
    Returns the DataSource object corresponding to the DataSource named by the string
  - get
```
public DataSource get(java.lang.String s)
```
    Returns the DataSource object corresponding to the DataSource named by the string. This is a shorthand for getDataSource(String) to comply with SDB naming conventions.
  - size
```
public int size()
```
    Returns the number of elements stored this DataSource collection as an integer
  - merge
```
public void merge(DataSourceCollection dsColl)
```
    if name exists in both collections, the new one is discarded
  - toString
```
public java.lang.String toString()
```
    for debugging - prints the total number of datasource collections stored. Later will give names of each datasource
    
    Overrides:
    
    toString in class java.lang.Object

Class DataSourceCollection

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

DataSourceCollection

Method Detail

next

getElementAt

get

add

rewind

indexOfName

nameExists

indexOf

getDataSource

get

size

merge

toString