Top Description Fields Constructors Methods
org.apache.derby.iapi.sql.dictionary

public Class ColPermsDescriptor

extends PermissionsDescriptor
Class Inheritance
Imports
org.apache.derby.catalog.Dependable, .DependableFinder, .UUID, org.apache.derby.shared.common.error.StandardException, org.apache.derby.iapi.services.io.FormatableBitSet, .StoredFormatIds

This class describes a row in the SYS.SYSCOLPERMS system table, which keeps the column permissions that have been granted but not revoked.

Field Summary

Modifier and TypeField and Description
private FormatableBitSet
private String
private UUID
private String
Inherited from org.apache.derby.iapi.sql.dictionary.PermissionsDescriptor:
oid

Constructor Summary

AccessConstructor and Description
public
ColPermsDescriptor(DataDictionary dd, String grantee, String grantor, UUID tableUUID, String type, FormatableBitSet columns)

public
ColPermsDescriptor(DataDictionary dd, String grantee, String grantor, UUID tableUUID, String type)

This constructor just initializes the key fields of a ColPermsDescriptor

public

Method Summary

Modifier and TypeMethod and Description
public boolean
checkOwner(String authorizationId)

Implements abstract org.apache.derby.iapi.sql.dictionary.PermissionsDescriptor.checkOwner.

This method checks if the passed authorization id is same as the owner of the object on which this permission is defined.

public boolean

Returns:

true iff the key part of this permissions descriptor equals the key part of another permissions descriptor.
equals
(Object
the reference object with which to compare.
other
)

Overrides java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

public int
public String

Returns:

char The provider's type.
getClassType
()

Implements org.apache.derby.catalog.Dependable.getClassType.

Get the provider's type.

public FormatableBitSet
public DependableFinder

Returns:

the stored form of this provider
getDependableFinder
()

Implements org.apache.derby.catalog.Dependable.getDependableFinder.

Get an object which can be written to disk and which, when read from disk, will find or reconstruct this in-memory Dependable.

public String

Returns:

String The name of this provider.
getObjectName
()

Implements org.apache.derby.catalog.Dependable.getObjectName.

Return the name of this Provider.

public UUID
public String
public int

Returns:

the hashCode for the key part of this permissions descriptor
hashCode
()

Overrides java.lang.Object.hashCode.

Returns a hash code value for this object.

public String
toString()

Overrides java.lang.Object.toString.

Returns a string representation of the object.

Inherited from org.apache.derby.iapi.sql.dictionary.PermissionsDescriptor:
clonegetGranteegetGrantorgetObjectIDgetUUIDisPersistentkeyEqualskeyHashCodesetGranteesetUUID

Field Detail

columnsback to summary
private FormatableBitSet columns
tableNameback to summary
private String tableName
tableUUIDback to summary
private UUID tableUUID
typeback to summary
private String type

Constructor Detail

ColPermsDescriptorback to summary
public ColPermsDescriptor(DataDictionary dd, String grantee, String grantor, UUID tableUUID, String type, FormatableBitSet columns) throws StandardException
ColPermsDescriptorback to summary
public ColPermsDescriptor(DataDictionary dd, String grantee, String grantor, UUID tableUUID, String type) throws StandardException

This constructor just initializes the key fields of a ColPermsDescriptor

ColPermsDescriptorback to summary
public ColPermsDescriptor(DataDictionary dd, UUID colPermsUUID) throws StandardException

Method Detail

checkOwnerback to summary
public boolean checkOwner(String authorizationId) throws StandardException

Implements abstract org.apache.derby.iapi.sql.dictionary.PermissionsDescriptor.checkOwner.

Doc from org.apache.derby.iapi.sql.dictionary.PermissionsDescriptor.checkOwner.

This method checks if the passed authorization id is same as the owner of the object on which this permission is defined. This method gets called by create view/constraint/trigger to see if this permission needs to be saved in dependency system for the view/constraint/trigger. If the same user is the owner of the the object being accessed and the newly created object, then no need to keep this privilege dependency

Returns:boolean

boolean If passed authorization id is owner of the table

See Also
PermissionsDescriptor#checkOwner
equalsback to summary
public boolean equals(Object other)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
other:Object

the reference object with which to compare.

Returns:boolean

true iff the key part of this permissions descriptor equals the key part of another permissions descriptor.

getCatalogNumberback to summary
public int getCatalogNumber()

Implements abstract org.apache.derby.iapi.sql.dictionary.PermissionsDescriptor.getCatalogNumber.

getClassTypeback to summary
public String getClassType()

Implements org.apache.derby.catalog.Dependable.getClassType.

Get the provider's type.

Returns:String

char The provider's type.

getColumnsback to summary
public FormatableBitSet getColumns()
getDependableFinderback to summary
public DependableFinder getDependableFinder()

Implements org.apache.derby.catalog.Dependable.getDependableFinder.

Doc from org.apache.derby.catalog.Dependable.getDependableFinder.

Get an object which can be written to disk and which, when read from disk, will find or reconstruct this in-memory Dependable.

Returns:DependableFinder

the stored form of this provider

See Also
Dependable#getDependableFinder
getObjectNameback to summary
public String getObjectName()

Implements org.apache.derby.catalog.Dependable.getObjectName.

Return the name of this Provider. (Useful for errors.)

Returns:String

String The name of this provider.

getTableUUIDback to summary
public UUID getTableUUID()
getTypeback to summary
public String getType()
hashCodeback to summary
public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
Returns:int

the hashCode for the key part of this permissions descriptor

toStringback 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