Class DropAliasConstantAction
- java.lang.Object
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- org.apache.derby.impl.sql.execute.DDLConstantAction
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- org.apache.derby.impl.sql.execute.DropAliasConstantAction
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- All Implemented Interfaces:
ConstantAction
class DropAliasConstantAction extends DDLConstantAction
This class performs actions that are ALWAYS performed for a DROP FUNCTION/PROCEDURE/SYNONYM statement at execution time. All of these SQL objects are represented by an AliasDescriptor.
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Field Summary
Fields Modifier and Type Field Description private java.lang.String
aliasName
private char
nameSpace
private SchemaDescriptor
sd
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Fields inherited from interface org.apache.derby.iapi.sql.execute.ConstantAction
WHEN_MATCHED_THEN_DELETE, WHEN_MATCHED_THEN_UPDATE, WHEN_NOT_MATCHED_THEN_INSERT
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Constructor Summary
Constructors Constructor Description DropAliasConstantAction(SchemaDescriptor sd, java.lang.String aliasName, char nameSpace)
Make the ConstantAction for a DROP ALIAS statement.
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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 DROP ALIAS.java.lang.String
toString()
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Methods inherited from class org.apache.derby.impl.sql.execute.DDLConstantAction
addColumnDependencies, adjustUDTDependencies, adjustUDTDependencies, constructToString, getAndCheckSchemaDescriptor, getSchemaDescriptorForCreate, lockTableForDDL, storeConstraintDependenciesOnPrivileges, storeViewTriggerDependenciesOnPrivileges
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Field Detail
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sd
private SchemaDescriptor sd
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aliasName
private final java.lang.String aliasName
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nameSpace
private final char nameSpace
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Constructor Detail
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DropAliasConstantAction
DropAliasConstantAction(SchemaDescriptor sd, java.lang.String aliasName, char nameSpace)
Make the ConstantAction for a DROP ALIAS statement.- Parameters:
aliasName
- Alias name.nameSpace
- Alias name space.
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Method Detail
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toString
public java.lang.String toString()
- Overrides:
toString
in classjava.lang.Object
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executeConstantAction
public void executeConstantAction(Activation activation) throws StandardException
This is the guts of the Execution-time logic for DROP ALIAS.- Parameters:
activation
- The execution environment for this constant action.- Throws:
StandardException
- Thrown on failure- See Also:
ConstantAction.executeConstantAction(org.apache.derby.iapi.sql.Activation)
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