CreateViewConstantAction (Apache Derby V10.14 Internals)

java.lang.Object
- org.apache.derby.impl.sql.execute.DDLConstantAction
- - org.apache.derby.impl.sql.execute.CreateViewConstantAction

All Implemented Interfaces:

ConstantAction
```
class CreateViewConstantAction
extends DDLConstantAction
```
This class describes actions that are ALWAYS performed for a CREATE VIEW Statement at Execution time. A view is represented as:
- TableDescriptor with the name of the view and type VIEW_TYPE
- Set of ColumnDescriptor's for the column names and types
- ViewDescriptor describing the SQL query that makes up the view.
Dependencies are created as:
- ViewDescriptor depends on the Providers that its compiled query depends on.
- ViewDescriptor depends on the privileges required to execute the view.
Note there are no dependencies created between the ViewDescriptor, TableDecriptor and the ColumnDescriptor's.

Field Summary

Fields
Modifier and Type	Field	Description
`private int`	`checkOption`
`private ColumnInfo[]`	`columnInfo`
`private UUID`	`compSchemaId`
`private ProviderInfo[]`	`providerInfo`
`private java.lang.String`	`schemaName`
`private java.lang.String`	`tableName`
`private int`	`tableType`
`private java.lang.String`	`viewText`

Fields inherited from interface org.apache.derby.iapi.sql.execute.ConstantAction
WHEN_MATCHED_THEN_DELETE, WHEN_MATCHED_THEN_UPDATE, WHEN_NOT_MATCHED_THEN_INSERT

Constructor Summary

Constructors
Constructor	Description
`CreateViewConstantAction(java.lang.String schemaName, java.lang.String tableName, int tableType, java.lang.String viewText, int checkOption, ColumnInfo[] columnInfo, ProviderInfo[] providerInfo, UUID compSchemaId)`	Make the ConstantAction for a CREATE VIEW statement.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`executeConstantAction(Activation activation)`	This is the guts of the Execution-time logic for CREATE VIEW.
`java.lang.String`	`toString()`

Methods inherited from class org.apache.derby.impl.sql.execute.DDLConstantAction
addColumnDependencies, adjustUDTDependencies, adjustUDTDependencies, constructToString, getAndCheckSchemaDescriptor, getSchemaDescriptorForCreate, lockTableForDDL, storeConstraintDependenciesOnPrivileges, storeViewTriggerDependenciesOnPrivileges

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

Field Detail

tableName

private final java.lang.String tableName

schemaName

private final java.lang.String schemaName

viewText

private final java.lang.String viewText

tableType
```
private final int tableType
```

checkOption
```
private final int checkOption
```

columnInfo
```
private final ColumnInfo[] columnInfo
```

providerInfo

private final ProviderInfo[] providerInfo

compSchemaId
```
private final UUID compSchemaId
```

Constructor Detail

CreateViewConstantAction

CreateViewConstantAction(java.lang.String schemaName,
                         java.lang.String tableName,
                         int tableType,
                         java.lang.String viewText,
                         int checkOption,
                         ColumnInfo[] columnInfo,
                         ProviderInfo[] providerInfo,
                         UUID compSchemaId)

Make the ConstantAction for a CREATE VIEW statement.

Parameters:: schemaName - name for the schema that view lives in.; tableName - Name of view.; tableType - Type of table (ie. TableDescriptor.VIEW_TYPE).; viewText - Text of query expression for view definition; checkOption - Check option type; columnInfo - Information on all the columns in the table.; providerInfo - Information on all the Providers; compSchemaId - Compilation Schema Id

Method Detail
- toString
```
public java.lang.String toString()
```
  Overrides:
  
  toString in class java.lang.Object
- executeConstantAction
```
public void executeConstantAction(Activation activation)
                           throws StandardException
```
  This is the guts of the Execution-time logic for CREATE VIEW.
  
  Parameters:
  
  activation - The execution environment for this constant action.
  
  Throws:
  
  StandardException - Thrown on failure
  
  See Also:
  
  ConstantAction.executeConstantAction(org.apache.derby.iapi.sql.Activation)

Class CreateViewConstantAction

Field Summary

Fields inherited from interface org.apache.derby.iapi.sql.execute.ConstantAction

Constructor Summary

Method Summary

Methods inherited from class org.apache.derby.impl.sql.execute.DDLConstantAction

Methods inherited from class java.lang.Object

Field Detail

tableName

schemaName

viewText

tableType

checkOption

columnInfo

providerInfo

compSchemaId

Constructor Detail

CreateViewConstantAction

Method Detail

toString

executeConstantAction