Apache Derby Database Engine and Embedded JDBC Driver 10.17.1.0 · org.apache.derby.impl.sql.execute.CreateViewConstantAction

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

Modifier and Type	Field and Description
private final int	checkOption
private final ColumnInfo[]	columnInfo
private final UUID	compSchemaId
private final ProviderInfo[]	providerInfo
private final String	schemaName
private final String	tableName
private final int	tableType
private final String	viewText

Constructor Summary

Access	Constructor and Description
pack-priv	CreateViewConstantAction(String name for the schema that view lives in. schemaName, String Name of view. tableName, int Type of table (ie. TableDescriptor.VIEW_TYPE). tableType, String Text of query expression for view definition viewText, int Check option type checkOption, ColumnInfo[] Information on all the columns in the table. columnInfo, ProviderInfo[] Information on all the Providers providerInfo, UUID Compilation Schema Id compSchemaId) Make the ConstantAction for a CREATE VIEW statement.

Access

Constructor and Description

pack-priv

CreateViewConstantAction(String

name for the schema that view lives in.

schemaName, String

Name of view.

tableName, int

Type of table (ie. TableDescriptor.VIEW_TYPE).

tableType, String

Text of query expression for view definition

viewText, int

Check option type

checkOption, ColumnInfo[]

Information on all the columns in the table.

columnInfo, ProviderInfo[]

Information on all the Providers

providerInfo, UUID

Compilation Schema Id

compSchemaId)

Make the ConstantAction for a CREATE VIEW statement.

Method Summary

Modifier and Type	Method and Description
public void	executeConstantAction(Activation The execution environment for this constant action. activation) Implements org.apache.derby.iapi.sql.execute.ConstantAction.executeConstantAction. This is the guts of the Execution-time logic for CREATE VIEW.
public String	toString() Overrides java.lang.Object.toString. Returns a string representation of the object.

Inherited from org.apache.derby.impl.sql.execute.DDLConstantAction:: addColumnDependencies adjustUDTDependencies adjustUDTDependencies constructToString getAndCheckSchemaDescriptor getSchemaDescriptorForCreate lockTableForDDL storeConstraintDependenciesOnPrivileges storeViewTriggerDependenciesOnPrivileges

Field Detail

checkOption	back to summary
private final int checkOption

columnInfo	back to summary
private final ColumnInfo[] columnInfo

compSchemaId	back to summary
private final UUID compSchemaId

providerInfo	back to summary
private final ProviderInfo[] providerInfo

schemaName	back to summary
private final String schemaName

tableName	back to summary
private final String tableName

tableType	back to summary
private final int tableType

viewText	back to summary
private final String viewText

Constructor Detail

CreateViewConstantAction	back to summary
pack-priv CreateViewConstantAction(String schemaName, String tableName, int tableType, String viewText, int checkOption, ColumnInfo[] columnInfo, ProviderInfo[] providerInfo, UUID compSchemaId) Make the ConstantAction for a CREATE VIEW statement. Parameters schemaName:String name for the schema that view lives in. tableName:String Name of view. tableType:int Type of table (ie. TableDescriptor.VIEW_TYPE). viewText:String Text of query expression for view definition checkOption:int Check option type columnInfo:ColumnInfo[] Information on all the columns in the table. providerInfo:ProviderInfo[] Information on all the Providers compSchemaId:UUID Compilation Schema Id

CreateViewConstantAction

back to summary

pack-priv CreateViewConstantAction(String schemaName, String tableName, int tableType, String viewText, int checkOption, ColumnInfo[] columnInfo, ProviderInfo[] providerInfo, UUID compSchemaId)

Make the ConstantAction for a CREATE VIEW statement.

Parameters

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

Method Detail

executeConstantAction back to summary

executeConstantAction	back to summary
public void executeConstantAction(Activation activation) throws StandardException Implements org.apache.derby.iapi.sql.execute.ConstantAction.executeConstantAction. This is the guts of the Execution-time logic for CREATE VIEW. Parameters activation:Activation Doc from org.apache.derby.iapi.sql.execute.ConstantAction.executeConstantAction. The execution environment for this constant action. Exceptions StandardException: Thrown on failure See Also `ConstantAction#executeConstantAction`

public void executeConstantAction(Activation activation) throws StandardException

Implements org.apache.derby.iapi.sql.execute.ConstantAction.executeConstantAction.

This is the guts of the Execution-time logic for CREATE VIEW.

Parameters

activation:Activation

Doc from org.apache.derby.iapi.sql.execute.ConstantAction.executeConstantAction.

The execution environment for this constant action.

Exceptions

StandardException:: Thrown on failure

See Also

ConstantAction#executeConstantAction

toString back to summary

toString	back to summary
public String toString() Overrides java.lang.Object.toString. Doc from java.lang.Object.toString. Returns a string representation of the object. Satisfying this method's contract implies a non-`null` result must be returned. Returns:String a string representation of the object

public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object. Satisfying this method's contract implies a non-null result must be returned.