KeyValueStore (xdi2-core 0.7.2 API)

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All Known Implementing Classes:

AbstractKeyValueStore, BDBKeyValueStore, MapKeyValueStore, PropertiesKeyValueStore
```
public interface KeyValueStore
```
The key/value based graph storage implementations needs a KeyValueStore to function. This defines basic operations on a key/value pair based datastore.

Author:

markus

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`beginTransaction()`
`void`	`clear()`
`void`	`close()`
`void`	`commitTransaction()`
`boolean`	`contains(String key)`
`boolean`	`contains(String key, String value)`
`long`	`count(String key)`
`void`	`delete(String key)`
`void`	`delete(String key, String value)`
`Iterator<String>`	`getAll(String key)`
`String`	`getOne(String key)`
`void`	`init()`
`void`	`replace(String key, String value)`
`void`	`rollbackTransaction()`
`void`	`set(String key, String value)`
`boolean`	`supportsTransactions()`

Method Detail

init

void init()
          throws IOException

Throws:: IOException

close
```
void close()
```

set

void set(String key,
       String value)

getOne
```
String getOne(String key)
```

getAll
```
Iterator<String> getAll(String key)
```

contains
```
boolean contains(String key)
```

contains

boolean contains(String key,
               String value)

delete
```
void delete(String key)
```

delete

void delete(String key,
          String value)

replace

void replace(String key,
           String value)

count
```
long count(String key)
```

clear
```
void clear()
```

supportsTransactions
```
boolean supportsTransactions()
```

beginTransaction
```
void beginTransaction()
```

commitTransaction
```
void commitTransaction()
```

rollbackTransaction
```
void rollbackTransaction()
```

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