CheckSchemaOperation (Apache Jackrabbit 2.21.26-beta API)

java.lang.Object
- org.apache.jackrabbit.core.util.db.CheckSchemaOperation

```
public class CheckSchemaOperation
extends Object
```
An operation which synchronously checks the DB schema in the run() method. The addVariableReplacement(String, String) method return the instance to enable method chaining.

Field Summary

Fields
Modifier and Type Field Description

static String SCHEMA_OBJECT_PREFIX_VARIABLE

static String TABLE_SPACE_VARIABLE

Constructor Summary

Constructors
Constructor Description

CheckSchemaOperation(ConnectionHelper connectionhelper, InputStream ddlStream, String tableName)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`CheckSchemaOperation`	`addVariableReplacement(String var, String replacement)`	Adds a variable replacement mapping.
`void`	`run()`	Checks if the required schema objects exist and creates them if they don't exist yet.

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

- Field Detail
  - SCHEMA_OBJECT_PREFIX_VARIABLE
```
public static final String SCHEMA_OBJECT_PREFIX_VARIABLE
```
    See Also:
    
    Constant Field Values
  - TABLE_SPACE_VARIABLE
```
public static final String TABLE_SPACE_VARIABLE
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - CheckSchemaOperation
```
public CheckSchemaOperation(ConnectionHelper connectionhelper,
                            InputStream ddlStream,
                            String tableName)
```
    Parameters:
    
    connectionhelper - the connection helper
    
    ddlStream - the stream of the DDL to use to create the schema if necessary (closed by the run() method)
    
    tableName - the name of the table to use for the schema-existence-check
- Method Detail
  - addVariableReplacement
```
public CheckSchemaOperation addVariableReplacement(String var,
                                                   String replacement)
```
    Adds a variable replacement mapping.
    
    Parameters:
    
    var - the variable
    
    replacement - the replacement value
    
    Returns:
    
    this
  - run
```
public void run()
         throws SQLException,
                IOException
```
    Checks if the required schema objects exist and creates them if they don't exist yet.
    
    Throws:
    
    SQLException - if an error occurs
    
    IOException - if an error occurs