pack-priv Class ExecSPSNode

Overrides org.apache.derby.impl.sql.compile.StatementNode.bindStatement.

Bind this ExecSPSNode. This means doing any static error checking that can be done before actually creating the table. For example, verifying that the ResultColumnList does not contain any duplicate column names.

Annotations

@Override

Exceptions

StandardException:

Thrown on error

Overrides org.apache.derby.impl.sql.compile.StatementNode.executeSchemaName.

Doc from org.apache.derby.impl.sql.compile.StatementNode.executeSchemaName.

Returns name of schema in EXECUTE STATEMENT command. Returns null for all other commands.

Returns:String

String schema for EXECUTE STATEMENT null for all others

Annotations

@Override

See Also

StatementNode#executeSchemaName

Overrides org.apache.derby.impl.sql.compile.StatementNode.executeStatementName.

Doc from org.apache.derby.impl.sql.compile.StatementNode.executeStatementName.

Returns the name of statement in EXECUTE STATEMENT command. Returns null for all other commands.

Returns:String

String null unless overridden for Execute Statement command

Annotations

@Override

See Also

StatementNode#executeStatementName

Overrides org.apache.derby.impl.sql.compile.StatementNode.generate.

Do code generation for this statement. Overrides the normal generation path in StatementNode.

Parameters

ignored:ByteArray

- ignored (he he)

Returns:GeneratedClass

A GeneratedClass for this statement

Annotations

@Override

Exceptions

StandardException:

Thrown on error

Overrides org.apache.derby.impl.sql.compile.StatementNode.getCursorInfo.

Get information about this cursor. For sps, this is info saved off of the original query tree (the one for the underlying query).

Returns:Object

the cursor info

Annotations

@Override

Overrides org.apache.derby.impl.sql.compile.QueryTreeNode.getParameterTypes.

Return a description of the ? parameters for the statement represented by this query tree. Just return the params stored with the prepared statement.

Returns:DataTypeDescriptor[]

An array of DataTypeDescriptors describing the ? parameters for this statement. It returns null if there are no parameters.

Annotations

@Override

Exceptions

StandardException:

on error

Overrides org.apache.derby.impl.sql.compile.StatementNode.getSPSName.

Get the name of the SPS that is used to execute this statement. Only relevant for an ExecSPSNode -- otherwise, returns null.

Returns:String

the name of the underlying sps

Annotations

@Override

Overrides org.apache.derby.impl.sql.compile.StatementNode.isAtomic.

SPSes are atomic if its underlying statement is atomic.

Returns:boolean

true if the statement is atomic

Annotations

@Override

Overrides org.apache.derby.impl.sql.compile.QueryTreeNode.makeConstantAction.

Create the Constant information that will drive the guts of Execution. This is assumed to be the first action on this node.

Annotations

@Override

Overrides org.apache.derby.impl.sql.compile.StatementNode.makeResultDescription.

Make the result description. Really, we are just copying it from the stored prepared statement.

Returns:ResultDescription

the description

Annotations

@Override

Overrides org.apache.derby.impl.sql.compile.StatementNode.needsSavepoint.

We need a savepoint if we will do transactional work. We'll ask the underlying statement if it needs a savepoint and pass that back. We have to do this after generation because getting the PS now might cause us to basically do DDL (for a stmt recompilation) which is explicitly banned during binding. So the caller can only call this after generate() has retrieved the target PS.

Returns:boolean

boolean always true.

Annotations

@Override