com.metamatrix.query.metadata
Class TempMetadataID

java.lang.Object
  com.metamatrix.query.metadata.TempMetadataID

All Implemented Interfaces:

java.io.Serializable

public class TempMetadataID
extends java.lang.Object
implements java.io.Serializable

This class represents a temporary metadata ID. A temporary metadata ID does not exist in a real metadata source. Rather, it is used temporarily in context of processing a single query. This metadata ID can be used to represent either a group or an element depending on the constructor used.

See Also:

Serialized Form

Constructor Summary

TempMetadataID(java.lang.String ID, java.lang.Class<?> type)
Constructor for element form of metadata ID.

TempMetadataID(java.lang.String ID, java.lang.Class<?> type, java.lang.Object metadataID)
Constructor for element form of metadata ID with the underlying element.

TempMetadataID(java.lang.String ID, java.util.List<TempMetadataID> elements)
Constructor for group form of metadata ID.

TempMetadataID(java.lang.String ID, java.util.List<TempMetadataID> elements, boolean isVirtual, boolean isTempTable)
Constructor for group form of metadata ID.

Method Summary

protected void	addElement(TempMetadataID elem) add a element to the temp table.
boolean	equals(java.lang.Object obj) Compare this temp metadata ID with another object.
java.util.Collection<TempMetadataID>	getAccessPatterns()
int	getCardinality()
java.util.List<TempMetadataID>	getElements() Get elements - only valid for groups
java.lang.String	getID() Get ID value
java.lang.Object	getOriginalMetadataID()
int	getPosition()
java.lang.Class<?>	getType() Get type - only valid for elements
int	hashCode() Return hash code
boolean	isScalarGroup()
boolean	isTempTable() Whether it is a temporary table
boolean	isVirtual() Check whether this group is virtual
void	setAccessPatterns(java.util.Collection<TempMetadataID> accessPatterns)
void	setCardinality(int cardinality)
void	setOriginalMetadataID(java.lang.Object metadataId)
void	setPosition(int position)
void	setScalarGroup(boolean scalarGroup)
void	setTempTable(boolean isTempTable)
java.lang.String	toString() Return string representation of ID

Methods inherited from class java.lang.Object

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

Constructor Detail

TempMetadataID

public TempMetadataID(java.lang.String ID,
                      java.util.List<TempMetadataID> elements)

Constructor for group form of metadata ID.

Parameters:

ID - Fully-qualified, upper-case name of ID

elements - List of TempMetadataID representing elements

TempMetadataID

public TempMetadataID(java.lang.String ID,
                      java.util.List<TempMetadataID> elements,
                      boolean isVirtual,
                      boolean isTempTable)

Constructor for group form of metadata ID.

Parameters:

ID - Fully-qualified, upper-case name of ID

elements - List of TempMetadataID representing elements

isVirtual - whether or not the group is a virtual group

TempMetadataID

public TempMetadataID(java.lang.String ID,
                      java.lang.Class<?> type)

Constructor for element form of metadata ID.

Parameters:

ID - Fully-qualified, upper-case name of ID

type - Type of elements List of TempMetadataID representing elements

TempMetadataID

public TempMetadataID(java.lang.String ID,
                      java.lang.Class<?> type,
                      java.lang.Object metadataID)

Constructor for element form of metadata ID with the underlying element.

Parameters:

ID - Fully-qualified, upper-case name of ID

type - Type of elements List of TempMetadataID representing elements

metadataID - the orginal metadataID

Method Detail

getID

public java.lang.String getID()

Get ID value

Returns:

ID value

getType

public java.lang.Class<?> getType()

Get type - only valid for elements

Returns:

Type for elements, null for groups

getElements

public java.util.List<TempMetadataID> getElements()

Get elements - only valid for groups

Returns:

List of TempMetadataID for groups, null for elements

addElement

protected void addElement(TempMetadataID elem)

add a element to the temp table.

Parameters:

elem -

isVirtual

public boolean isVirtual()

Check whether this group is virtual

Returns:

True if virtual

isTempTable

public boolean isTempTable()

Whether it is a temporary table

Returns:

Since:

5.5

toString

public java.lang.String toString()

Return string representation of ID

Overrides:

toString in class java.lang.Object

Returns:

String representation

equals

public boolean equals(java.lang.Object obj)

Compare this temp metadata ID with another object.

Overrides:

equals in class java.lang.Object

Returns:

True if obj is another TempMetadataID with same ID value

hashCode

public int hashCode()

Return hash code

Overrides:

hashCode in class java.lang.Object

Returns:

Hash code value for object

setOriginalMetadataID

public void setOriginalMetadataID(java.lang.Object metadataId)

getOriginalMetadataID

public java.lang.Object getOriginalMetadataID()

Returns:

Returns the originalMetadataID.

Since:

4.3

getAccessPatterns

public java.util.Collection<TempMetadataID> getAccessPatterns()

setAccessPatterns

public void setAccessPatterns(java.util.Collection<TempMetadataID> accessPatterns)

getCardinality

public int getCardinality()

setCardinality

public void setCardinality(int cardinality)

setTempTable

public void setTempTable(boolean isTempTable)

getPosition

public int getPosition()

setPosition

public void setPosition(int position)

isScalarGroup

public boolean isScalarGroup()

setScalarGroup

public void setScalarGroup(boolean scalarGroup)