com.metamatrix.query.sql.lang
Class DynamicCommand

java.lang.Object
  com.metamatrix.query.sql.lang.Command
      com.metamatrix.query.sql.lang.DynamicCommand

All Implemented Interfaces:

LanguageObject, java.io.Serializable, java.lang.Cloneable

public class DynamicCommand
extends Command

See Also:

Serialized Form

Field Summary

Fields inherited from class com.metamatrix.query.sql.lang.Command

tempGroupIDs, TYPE_BATCHED_UPDATE, TYPE_CREATE, TYPE_DELETE, TYPE_DROP, TYPE_DYNAMIC, TYPE_INSERT, TYPE_QUERY, TYPE_SQL, TYPE_STORED_PROCEDURE, TYPE_UNKNOWN, TYPE_UPDATE, TYPE_UPDATE_PROCEDURE, TYPE_XQUERY

Constructor Summary

DynamicCommand()

DynamicCommand(Expression sql, java.util.List columns, GroupSymbol intoGroup, SetClauseList using)

Method Summary

void	acceptVisitor(LanguageVisitor visitor) Method for accepting a visitor.
boolean	areResultsCachable() Whether the results are cachable.
java.lang.Object	clone() Implement clone to make objects cloneable.
boolean	equals(java.lang.Object obj)
java.util.List	getAsColumns()
GroupSymbol	getIntoGroup()
java.util.List	getProjectedSymbols() Get the ordered list of all elements returned by this query.
Expression	getSql()
int	getType() Return type of command to make it easier to build switch statements by command type.
int	getUpdatingModelCount()
SetClauseList	getUsing()
int	hashCode()
boolean	isAsClauseSet()
void	setAsClauseSet(boolean asClauseSet)
void	setAsColumns(java.util.List columns)
void	setIntoGroup(GroupSymbol intoGroup)
void	setSql(Expression sql)
void	setUpdatingModelCount(int count)
void	setUsing(SetClauseList using)
java.lang.String	toString() Returns a string representation of an instance of this class.
int	updatingModelCount(QueryMetadataInterface metadata) Return the number of updates on physical sources by this command.

Methods inherited from class com.metamatrix.query.sql.lang.Command

addExternalGroupsToContext, addExternalGroupToContext, copyMetadataState, getAllExternalGroups, getExternalGroupContexts, getOption, getSubCommands, getSubCommandsUpdatingModelCount, getSubCommandsUpdatingModelCount, getTemporaryMetadata, getUpdateCommandSymbol, getUpdatesCommandSymbol, getVariableValues, getVirtualGroup, isResolved, printCommandTree, printCommandTree, pushNewResolvingContext, setExternalGroupContexts, setIsResolved, setOption, setTemporaryMetadata, setVariableValues, setVirtualGroup

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DynamicCommand

public DynamicCommand()

DynamicCommand

public DynamicCommand(Expression sql,
                      java.util.List columns,
                      GroupSymbol intoGroup,
                      SetClauseList using)

Method Detail

clone

public java.lang.Object clone()

Description copied from interface: LanguageObject

Implement clone to make objects cloneable.

Specified by:

clone in interface LanguageObject

Specified by:

clone in class Command

Returns:

Deep clone of this object

See Also:

Command.clone()

getType

public int getType()

Description copied from class: Command

Return type of command to make it easier to build switch statements by command type.

Specified by:

getType in class Command

Returns:

Type from TYPE constants

See Also:

Command.getType()

getProjectedSymbols

public java.util.List getProjectedSymbols()

Description copied from class: Command

Get the ordered list of all elements returned by this query. These elements may be ElementSymbols or ExpressionSymbols but in all cases each represents a single column.

Specified by:

getProjectedSymbols in class Command

Returns:

Ordered list of SingleElementSymbol

See Also:

Once past resolving, an EMPTY set of project columns indicates that the project columns of the actual command do not need to be checked during processing.

areResultsCachable

public boolean areResultsCachable()

Description copied from class: Command

Whether the results are cachable.

Specified by:

areResultsCachable in class Command

Returns:

True if the results are cachable; false otherwise.

See Also:

Command.areResultsCachable()

setUpdatingModelCount

public void setUpdatingModelCount(int count)

getUpdatingModelCount

public int getUpdatingModelCount()

updatingModelCount

public int updatingModelCount(QueryMetadataInterface metadata)
                       throws MetaMatrixComponentException

Description copied from class: Command

Return the number of updates on physical sources by this command.

Specified by:

updatingModelCount in class Command

Parameters:

metadata - QueryMetadataInterface

Returns:

The number of updates on physical sources by this command.

Throws:

MetaMatrixComponentException

See Also:

Command.updatingModelCount(com.metamatrix.query.metadata.QueryMetadataInterface)

acceptVisitor

public void acceptVisitor(LanguageVisitor visitor)

Description copied from interface: LanguageObject

Method for accepting a visitor. It is the responsibility of the language object to call back on the visitor.

Parameters:

visitor - Visitor being used

See Also:

LanguageObject.acceptVisitor(com.metamatrix.query.sql.LanguageVisitor)

getAsColumns

public java.util.List getAsColumns()

Returns:

Returns the columns.

setAsColumns

public void setAsColumns(java.util.List columns)

Parameters:

columns - The columns to set.

getIntoGroup

public GroupSymbol getIntoGroup()

Returns:

Returns the intoGroup.

setIntoGroup

public void setIntoGroup(GroupSymbol intoGroup)

Parameters:

intoGroup - The intoGroup to set.

getSql

public Expression getSql()

Returns:

Returns the sql.

setSql

public void setSql(Expression sql)

Parameters:

sql - The sql to set.

getUsing

public SetClauseList getUsing()

Returns:

Returns the using.

setUsing

public void setUsing(SetClauseList using)

Parameters:

using - The using to set.

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

See Also:

Object.equals(java.lang.Object)

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

See Also:

Object.hashCode()

toString

public java.lang.String toString()

Description copied from class: Command

Returns a string representation of an instance of this class.

Overrides:

toString in class Command

Returns:

String representation of object

See Also:

Object.toString()

isAsClauseSet

public boolean isAsClauseSet()

Returns:

Returns the asClauseSet.

setAsClauseSet

public void setAsClauseSet(boolean asClauseSet)

Parameters:

asClauseSet - The asClauseSet to set.