LockManager

All Superinterfaces:

java.lang.AutoCloseable

All Known Implementing Classes:

LockManagers.BaseLockManager
```
public interface LockManager
extends java.lang.AutoCloseable
```
An interface for locking, used to ensure commit isolation.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`boolean`	`acquire(java.lang.String entityId, java.lang.String ownerId)`	Try to acquire a lock
`void`	`initialize(java.util.Map<java.lang.String,java.lang.String> properties)`	Initialize lock manager from catalog properties.
`boolean`	`release(java.lang.String entityId, java.lang.String ownerId)`	Release a lock exception must not be thrown for this method.

Methods inherited from interface java.lang.AutoCloseable
close

- Method Detail
  - acquire
```
boolean acquire(java.lang.String entityId,
                java.lang.String ownerId)
```
    Try to acquire a lock
    
    Parameters:
    
    entityId - ID of the entity to lock
    
    ownerId - ID of the owner if the lock
    
    Returns:
    
    if the lock for the entity is acquired by the owner
  - release
```
boolean release(java.lang.String entityId,
                java.lang.String ownerId)
```
    Release a lock exception must not be thrown for this method.
    
    Parameters:
    
    entityId - ID of the entity to lock
    
    ownerId - ID of the owner if the lock
    
    Returns:
    
    if the owner held the lock and successfully released it.
  - initialize
```
void initialize(java.util.Map<java.lang.String,java.lang.String> properties)
```
    Initialize lock manager from catalog properties.
    
    Parameters:
    
    properties - catalog properties