com.highqsoft.odsx.hql

Class CmdSelect

java.lang.Object

com.highqsoft.fwk.Fwk

com.highqsoft.fwk.FwkDescription

com.highqsoft.fwk.FwkPropertyChange

com.highqsoft.fwk.FwkPersistence

com.highqsoft.fwk.FwkItem

com.highqsoft.fwk.FwkInfoBusMember

com.highqsoft.fwk.FwkMimeType

com.highqsoft.fwk.FwkInfoBusConsumer

com.highqsoft.odsx.hql.Cmd

com.highqsoft.odsx.hql.CmdSelect

All Implemented Interfaces:

FwkCommandInterface, FwkCompareInterface, FwkControlledByInterface, FwkControllerInterface, FwkDescriptionInterface, FwkInfoBusConsumerInterface, FwkInfoBusMemberInterface, FwkInstructionInterface, FwkInterface, FwkItemInterface, FwkMimeTypeInterface, FwkPersistenceInterface, FwkPresentationInterface, FwkPropertyChangeInterface, FwkTransferableInterface, FwkVetoableChangeInterface, CommandInterface, java.awt.datatransfer.ClipboardOwner, java.awt.datatransfer.Transferable, java.beans.PropertyChangeListener, java.io.Serializable, java.lang.Cloneable, java.lang.Comparable, java.util.EventListener, javax.infobus.DataItem, javax.infobus.InfoBusDataConsumer, javax.infobus.InfoBusEventListener, javax.infobus.InfoBusMember

public class CmdSelect
extends Cmd

The Select command.

Author:

Andreas Hofmann $Revision: 1.20 $ $Date: 2017/04/06 13:29:54 $

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.lang.String	BRACES
protected static java.lang.String	CLOSEBRACES
protected static java.lang.String	DELIMITER
static java.lang.String	FROM The keyword for the from clause.
protected static java.lang.String	help
protected java.lang.String	lastToken
protected static java.lang.String	OPENBRACES
protected static java.util.HashMap	operatorInvList
protected static java.util.HashMap	operatorList
protected static java.lang.String	OPERATORS
static java.lang.String	REFTO The keyword for the refto clause.
static java.lang.String	SELECT The keyword for the select clause.
static java.lang.String[]	SINGLE_DERVIATION
protected java.lang.String	upperToken
static java.lang.String	USING The keyword for the using clause.
static java.lang.String	version
static java.lang.String	WHERE The keyword for the where clause.

Fields inherited from class com.highqsoft.odsx.hql.Cmd

APPEND_ERR, APPEND_OUT, commandString, counter, fwkCommand, hql, keys, OPEN_ERR, OPEN_OUT, params, result, streamOpened, timeNeeded

Fields inherited from class com.highqsoft.fwk.FwkMimeType

FWKMIMETYPE

Fields inherited from class com.highqsoft.fwk.FwkInfoBusMember

infoBusMemberSupport

Fields inherited from class com.highqsoft.fwk.FwkItem

changeManager, properties, suspendChangeManager

Fields inherited from class com.highqsoft.fwk.FwkPropertyChange

source

Fields inherited from class com.highqsoft.fwk.FwkDescription

author, buildnr, className, company, copyright, creationDate, dateFormatString, description, eMail, FWK_ICON, FWK_ICON_ARRAY, FWK_ICON_BG, FWK_ICON_BG_ARRAY, FWK_ICON_BG_LARGE, FWK_ICON_BG_LARGE_ARRAY, FWK_ICON_LARGE, FWK_ICON_LARGE_ARRAY, icon, ICON, iconCount, iconKey, internetAddress, name, titleName

Fields inherited from interface com.highqsoft.interfaces.fwk.FwkCommandInterface

CONTROLLER_PROPERTY, MENU_REASON_CANCELED, MENU_REASON_DESELECTED, MENU_REASON_SELECTED

Fields inherited from interface com.highqsoft.interfaces.fwk.FwkInfoBusConsumerInterface

BUSNAME

Fields inherited from interface com.highqsoft.interfaces.fwk.FwkItemInterface

INFOBUS_SOURCE

Fields inherited from interface com.highqsoft.interfaces.fwk.FwkDescriptionInterface

AUTHOR, BUILDNR, COMPANY, COPYRIGHT, DATE_FORMAT, DEFAULT_ICON, DESCRIPTION, INTERNET, LARGE_ICON, LARGE_KEY_EXT, LARGE_OPAQUE_ICON, LARGE_OPAQUE_KEY_EXT, OPAQUE_ICON, OPAQUE_KEY_EXT, RCS_DATE_FORMAT, SUPPORT_EMAIL, TITLE_NAME

Constructor Summary

Constructors

Constructor and Description
CmdSelect() The default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	execute() Execute the select command.
protected AIDNameUnitId[]	getAIDNameUnitId(ApplicationElement[] aeObj, java.lang.String spec) Get the AIDNameUnitId structure.
protected AIDNameUnitId[]	getAIDNameUnitId(ApplicationElement[] aeObj, java.util.Vector colSpec) Get the AIDNameUnitId structure.
protected ApplicationAttribute[]	getApplicationAttributes(ApplicationElement aeObj, java.lang.String spec) Get the application attributes belongs to the given string specification.
protected ApplicationElement[]	getApplicationElements(ApplicationStructure asObj, java.lang.String spec) Get the application elements belongs to the given string specification.
protected ApplicationRelation[]	getApplicationRelations(ApplicationElement aeObj, java.lang.String spec) Get the application relation belongs to the given string specification.
protected ApplicationAttribute[][]	getAttributes(ApplicationElement[] aeObj, java.lang.String spec) Get the application attributes belongs to the given string specification.
protected ApplicationAttribute[][]	getAttributes(InstanceElement[] ieObj, java.lang.String spec) Get the application attributes belongs to the given string specification.
java.lang.String	getConditionString(ApplicationStructure asObj, SelValue selValue) Get the string presentation of the given condition.
protected ElemId[]	getElemIds(AoSession session, FwkPropertyGroup map) Get ids.
QueryStructure	getQueryStructure(AoSession session, FwkPropertyGroup map) Get the ods query structure.
protected ApplicationRelation[][]	getRelations(ApplicationElement[] aeObj, java.lang.String spec) Get the application relations belongs to the given string specification.
protected ApplicationRelation[][]	getRelations(InstanceElement[] ieObj, java.lang.String spec) Get the application relations belong to the given string specification.
static ResultColumn[]	getResultColumns(ElemResultSet[] elemRes) Get the result columns.
OdsxResultSetInterface	getResultSet() Get result set.
java.lang.String	getSelectStatement(AoSession session, QueryStructure query) Get the select statement for the given query structure.
protected SelValue	getSelValue(ApplicationElement[] aeObj, java.lang.String field, java.lang.String op, java.lang.String val) Get the SelValue structure.
protected java.util.Vector	getSelValue(ApplicationElement[] aeObj, java.util.Vector where, java.util.Vector selVal, java.util.Vector selOp) Get the selection value.
protected java.lang.String	getToken(java.util.StringTokenizer st)
java.lang.String	getVersion() Get the version of the HQL implementation.
boolean	handleParsedOperator(java.util.Vector vec, java.lang.String upperToken) Handle found operands.
FwkPropertyGroup	parse(java.lang.String statement) Parse a statement.
protected java.lang.String	parseBraces(java.util.StringTokenizer st) Parse the string literal.
java.util.Vector	parseConditions(java.util.StringTokenizer st) Parse the conditions of a where clause.
protected void	parseFrom(java.util.StringTokenizer st, FwkPropertyGroup map) Parse the from clause.
boolean	parseParams(java.lang.String params) Set the parameter string to the command.
protected void	parseRefTo(java.util.StringTokenizer st, FwkPropertyGroup map) Parse the refto clause.
protected void	parseSelect(java.util.StringTokenizer st, FwkPropertyGroup map) Parse the select clause.
protected void	parseStream(java.util.StringTokenizer st, java.lang.String key, FwkPropertyGroup map) Parse the streaming option.
protected java.lang.String	parseString(java.util.StringTokenizer st) Parse the string literal.
protected void	parseUsing(java.util.StringTokenizer st, FwkPropertyGroup map) Parse the using clause.
protected void	parseWhere(java.util.StringTokenizer st, FwkPropertyGroup map) Parse the where clause.

Methods inherited from class com.highqsoft.odsx.hql.Cmd

addActionListener, addMenuListener, commandString, execute, getActionListenerArray, getButtonClass, getCommandName, getHelpID, getIcon, getIconKey, getMenuEventEnabled, getMenuItemClass, getMenuListenerArray, getMnemonic, getProperties, getProperty, getRadioGroupState, getResult, getSensitivity, getSeparator, getText, getTextKey, getToggle, getToggleState, getToolBarEnabled, getToolTipKey, getToolTipText, getVisibility, hasActionListeners, hasMenuListeners, initializeExecution, isParent, menuSelect, register, registeredObjects, registrySize, release, removeActionListener, removeMenuListener, setAsParent, setButtonClass, setCommandName, setHelpID, setIcon, setIconKey, setInterpreter, setMenuEventEnabled, setMenuItemClass, setMnemonic, setProperty, setRadioGroupState, setSensitivity, setSeparator, setText, setTextKey, setToggle, setToggleState, setToolBarEnabled, setToolTipKey, setToolTipText, setVisibility, terminateExecution, timeNeeded, unregister

Methods inherited from class com.highqsoft.fwk.FwkInfoBusConsumer

dataItemAvailable, dataItemRevoked, finalize, findDataItem, findDataItem, findMultipleDataItems, findMultipleDataItems, getController, initialize, isAssignable, propertyChange, register, setController, setInfoBusName, unregister

Methods inherited from class com.highqsoft.fwk.FwkMimeType

addMimeType, getDataFlavor, getDataFlavors, getMimeTypes, removeMimeType

Methods inherited from class com.highqsoft.fwk.FwkInfoBusMember

addInfoBusPropertyListener, addInfoBusVetoableListener, getInfoBus, getInfoBusName, getMemberName, isConnected, joinInfoBus, removeInfoBusPropertyListener, removeInfoBusVetoableListener, setInfoBus, setMemberName, setName

Methods inherited from class com.highqsoft.fwk.FwkItem

addDataItemChangeListener, fireItemAdded, fireItemDeleted, fireItemRevoked, fireItemValueChanged, getName, getPropertyGroup, getSource, isChangeManagerSuspended, removeDataItemChangeListener, setPropertyGroup, suspendChangeManager

Methods inherited from class com.highqsoft.fwk.FwkPersistence

addCommand, addCommand, addToGroup, addToGroup, addVetoableChangeListener, addVetoableChangeListener, clearCommands, commandsAvailable, compareTo, deleteGroup, destroyController, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, getAuthor, getBuild, getCommand, getCommands, getCommands, getCompany, getCompanyInternetAddress, getCopyright, getCreationDate, getCreationDate, getDateFormatString, getDescription, getFwkMimeTypes, getGroup, getIcon, getIconKey, getPersistentObjectNames, getSupportEMail, getTitle, getTitleName, getVetoableChangeArray, getVetoableChangeListenerArray, getVetoableChangeListenerArray, groupExists, removeCommand, removeFromGroup, removeVetoableChangeListener, removeVetoableChangeListener, setAuthor, setBuild, setCommands, setCompany, setCompanyInternetAddress, setCopyright, setCreationDate, setDateFormatString, setDescription, setDescriptor, setDescriptor, setIcon, setIconKey, setSource, setSupportEMail, setTitleName

Methods inherited from class com.highqsoft.fwk.FwkPropertyChange

addPropertyChangeListener, addPropertyChangeListener, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getPropertyChangeArray, getPropertyChangeListenerArray, getPropertyChangeListenerArray, isPropertyChangeEventSuspended, removePropertyChangeListener, removePropertyChangeListener, suspendPropertyChangeEvents

Methods inherited from class com.highqsoft.fwk.FwkDescription

getClassName, getPresentationString, getPresentationString, getTransferData, getTransferDataFlavors, isDataFlavorSupported, lostOwnership, setClassName, setCreationDate, toString

Methods inherited from class com.highqsoft.fwk.Fwk

getNiceVersion

Methods inherited from class java.lang.Object

clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.highqsoft.interfaces.fwk.FwkInstructionInterface

addCommand, addCommand, addToGroup, addToGroup, clearCommands, commandsAvailable, deleteGroup, getCommand, getCommands, getGroup, groupExists, removeCommand, removeFromGroup, setCommands

Methods inherited from interface com.highqsoft.interfaces.fwk.FwkPresentationInterface

getPresentationString, getPresentationString

Methods inherited from interface com.highqsoft.interfaces.fwk.FwkControlledByInterface

getController, setController

Methods inherited from interface com.highqsoft.interfaces.fwk.FwkPropertyChangeInterface

addPropertyChangeListener, addPropertyChangeListener, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getPropertyChangeArray, getPropertyChangeListenerArray, getPropertyChangeListenerArray, isPropertyChangeEventSuspended, removePropertyChangeListener, removePropertyChangeListener, setSource, suspendPropertyChangeEvents

Methods inherited from interface com.highqsoft.interfaces.fwk.FwkMimeTypeInterface

addMimeType, getDataFlavor, getDataFlavors, getMimeTypes, removeMimeType

Methods inherited from interface com.highqsoft.interfaces.fwk.FwkInfoBusMemberInterface

getInfoBusName, getMemberName, isConnected, setMemberName

Methods inherited from interface com.highqsoft.interfaces.fwk.FwkItemInterface

fireItemAdded, fireItemDeleted, fireItemRevoked, fireItemValueChanged, getPropertyGroup, setPropertyGroup, suspendChangeManager

Methods inherited from interface com.highqsoft.interfaces.fwk.FwkPersistenceInterface

getCommands, getPersistentObjectNames

Methods inherited from interface com.highqsoft.interfaces.fwk.FwkControllerInterface

destroyController

Methods inherited from interface com.highqsoft.interfaces.fwk.FwkVetoableChangeInterface

addVetoableChangeListener, addVetoableChangeListener, getVetoableChangeArray, getVetoableChangeListenerArray, getVetoableChangeListenerArray, removeVetoableChangeListener, removeVetoableChangeListener

Methods inherited from interface com.highqsoft.interfaces.fwk.FwkDescriptionInterface

getAuthor, getBuild, getClassName, getCompany, getCompanyInternetAddress, getCopyright, getCreationDate, getCreationDate, getDateFormatString, getDescription, getIcon, getIconKey, getName, getPresentationString, getPresentationString, getSupportEMail, getTitle, getTitleName, setAuthor, setBuild, setClassName, setCompany, setCompanyInternetAddress, setCopyright, setCreationDate, setCreationDate, setDateFormatString, setDescription, setDescriptor, setIcon, setIconKey, setName, setSupportEMail, setTitleName

Methods inherited from interface java.awt.datatransfer.Transferable

getTransferData, getTransferDataFlavors, isDataFlavorSupported

Methods inherited from interface java.awt.datatransfer.ClipboardOwner

lostOwnership

Methods inherited from interface java.lang.Comparable

compareTo

Methods inherited from interface javax.infobus.DataItem

getSource

Methods inherited from interface javax.infobus.InfoBusMember

addInfoBusPropertyListener, addInfoBusVetoableListener, getInfoBus, removeInfoBusPropertyListener, removeInfoBusVetoableListener, setInfoBus

Field Detail

version

public static final java.lang.String version

See Also:

Constant Field Values

SINGLE_DERVIATION

public static final java.lang.String[] SINGLE_DERVIATION

SELECT

public static final java.lang.String SELECT

The keyword for the select clause.

See Also:

Constant Field Values

FROM

public static final java.lang.String FROM

The keyword for the from clause.

See Also:

Constant Field Values

WHERE

public static final java.lang.String WHERE

The keyword for the where clause.

See Also:

Constant Field Values

USING

public static final java.lang.String USING

The keyword for the using clause.

See Also:

Constant Field Values

REFTO

public static final java.lang.String REFTO

The keyword for the refto clause.

See Also:

Constant Field Values

BRACES

protected static final java.lang.String BRACES

See Also:

Constant Field Values

OPENBRACES

protected static final java.lang.String OPENBRACES

See Also:

Constant Field Values

CLOSEBRACES

protected static final java.lang.String CLOSEBRACES

See Also:

Constant Field Values

OPERATORS

protected static final java.lang.String OPERATORS

See Also:

Constant Field Values

operatorList

protected static final java.util.HashMap operatorList

operatorInvList

protected static final java.util.HashMap operatorInvList

DELIMITER

protected static final java.lang.String DELIMITER

See Also:

Constant Field Values

help

protected static java.lang.String help

lastToken

protected java.lang.String lastToken

upperToken

protected java.lang.String upperToken

Constructor Detail

CmdSelect

public CmdSelect()

The default constructor.

Method Detail

getVersion

public java.lang.String getVersion()

Description copied from class: Cmd

Get the version of the HQL implementation.

Specified by:

getVersion in interface FwkInterface

Overrides:

getVersion in class Cmd

Returns:

the version string.

getToken

protected java.lang.String getToken(java.util.StringTokenizer st)

parse

public FwkPropertyGroup parse(java.lang.String statement)

Parse a statement. The result is a hashmap that has entries for the SELECT, FROM and WHERE keywords (if any). Use the predefined constants to get the specific information. The syntax is similar to an SQL statement. The parser is case insensitive on the keyword SELECT, FROM and WHERE. The problem is to specify the model (BaseModel or ApplicationStructure). Therefore the field can have a prefix.

Prefix	Description
BA.	Request a BaseAttribute.
BE.	Request a BaseElement.
AA.	Request a ApplicationAttribute.
AE.	Request a ApplicationElement.

If no prefix is specified, the interpretation depends on the consumer of this result.

Keyword	Datatype	Description
SELECT	java.util.Vector	The strings describing the elements to be selected.
FROM	java.util.Vector	The strings describing the elements of the from clause.
WHERE	java.util.Vector	The strings describing the condition. Each element could be a vector that contains a subcondition.

Example:

 select (BA.Id, Ba.Name) 
        from (BE.AoTest, AE.Measurement) 
        where ((BA.id < 10) && (BA.name == SG*));
 

Parameters:

statement - the statement to be parsed.

Returns:

the described hashmap.

parseSelect

protected void parseSelect(java.util.StringTokenizer st,
               FwkPropertyGroup map)

Parse the select clause.

Parameters:

st - the tokenizer.

map - the parser result map.

parseFrom

protected void parseFrom(java.util.StringTokenizer st,
             FwkPropertyGroup map)

Parse the from clause.

Parameters:

st - the tokenizer.

map - the parser result map.

parseUsing

protected void parseUsing(java.util.StringTokenizer st,
              FwkPropertyGroup map)

Parse the using clause.

Parameters:

st - the tokenizer.

map - the parser result map.

parseRefTo

protected void parseRefTo(java.util.StringTokenizer st,
              FwkPropertyGroup map)

Parse the refto clause.

Parameters:

st - the tokenizer.

map - the parser result map.

parseStream

protected void parseStream(java.util.StringTokenizer st,
               java.lang.String key,
               FwkPropertyGroup map)

Parse the streaming option.

Parameters:

st - the tokenizer.

key - the kind of stream.

map - the parser result map.

parseWhere

protected void parseWhere(java.util.StringTokenizer st,
              FwkPropertyGroup map)

Parse the where clause.

Parameters:

st - the tokenizer.

map - the parser result map.

parseConditions

public java.util.Vector parseConditions(java.util.StringTokenizer st)

Parse the conditions of a where clause.

Parameters:

st - the tokenizer.

Returns:

A vector containing the conditions.

parseString

protected java.lang.String parseString(java.util.StringTokenizer st)

Parse the string literal.

Parameters:

st - the tokenizer.

parseBraces

protected java.lang.String parseBraces(java.util.StringTokenizer st)

Parse the string literal.

Parameters:

st - the tokenizer.

handleParsedOperator

public boolean handleParsedOperator(java.util.Vector vec,
                           java.lang.String upperToken)

Handle found operands.

Parameters:

vec - the resulting vector.

upperToken - the current operand.

getQueryStructure

public QueryStructure getQueryStructure(AoSession session,
                               FwkPropertyGroup map)
                                 throws AoException

Get the ods query structure.

Parameters:

session - the session to be used for query.

map - the result map of the parser

Returns:

the querystructure of null if not successful.

Throws:

AoException

See Also:

AoSession

getSelValue

protected java.util.Vector getSelValue(ApplicationElement[] aeObj,
                           java.util.Vector where,
                           java.util.Vector selVal,
                           java.util.Vector selOp)

Get the selection value.

Parameters:

aeObj - An array containing the selected application elements.

where - The vector containing the where clause coming from parser.

selVal - The vector into the method can save the result. May be null

selOp - The operations of the selection.

Returns:

a vector containing the SelValue structures.

getSelValue

protected SelValue getSelValue(ApplicationElement[] aeObj,
                   java.lang.String field,
                   java.lang.String op,
                   java.lang.String val)

Get the SelValue structure.

Parameters:

aeObj - An array containing the application elements.

field - The field name or pattern.

op - the operation string.

val - The value string.

Returns:

the SelValue structure.

getAIDNameUnitId

protected AIDNameUnitId[] getAIDNameUnitId(ApplicationElement[] aeObj,
                               java.util.Vector colSpec)

Get the AIDNameUnitId structure.

Parameters:

aeObj - An array containing the application elements.

colSpec - The vector containing the column specification from select statement.

Returns:

the AIDNameUnitId structure array (one for each column).

getAIDNameUnitId

protected AIDNameUnitId[] getAIDNameUnitId(ApplicationElement[] aeObj,
                               java.lang.String spec)

Get the AIDNameUnitId structure.

Parameters:

aeObj - An array containing the application elements.

spec - The column specification from select statement.

Returns:

the AIDNameUnitId structure array (one for each column).

getAttributes

protected ApplicationAttribute[][] getAttributes(InstanceElement[] ieObj,
                                     java.lang.String spec)
                                          throws AoException

Get the application attributes belongs to the given string specification.

Parameters:

ieObj - the instance elements.

spec - The string specification.

Returns:

the found application attributes.

Throws:

AoException

getAttributes

protected ApplicationAttribute[][] getAttributes(ApplicationElement[] aeObj,
                                     java.lang.String spec)
                                          throws AoException

Get the application attributes belongs to the given string specification.

Parameters:

aeObj - the application elements.

spec - The string specification.

Returns:

the found application attributes.

Throws:

AoException

getApplicationAttributes

protected ApplicationAttribute[] getApplicationAttributes(ApplicationElement aeObj,
                                              java.lang.String spec)
                                                   throws AoException

Get the application attributes belongs to the given string specification.

Parameters:

aeObj - the application element.

spec - The string specification.

Returns:

the found application attributes.

Throws:

AoException

getRelations

protected ApplicationRelation[][] getRelations(InstanceElement[] ieObj,
                                   java.lang.String spec)
                                        throws AoException

Get the application relations belong to the given string specification.

Parameters:

ieObj - the instance elements.

spec - The string specification.

Returns:

the found application relations.

Throws:

AoException

getRelations

protected ApplicationRelation[][] getRelations(ApplicationElement[] aeObj,
                                   java.lang.String spec)
                                        throws AoException

Get the application relations belongs to the given string specification.

Parameters:

aeObj - the application elements.

spec - The string specification.

Returns:

the found application relation.

Throws:

AoException

getApplicationRelations

protected ApplicationRelation[] getApplicationRelations(ApplicationElement aeObj,
                                            java.lang.String spec)
                                                 throws AoException

Get the application relation belongs to the given string specification.

Parameters:

aeObj - the application element.

spec - The string specification.

Returns:

the found application relations.

Throws:

AoException

getApplicationElements

protected ApplicationElement[] getApplicationElements(ApplicationStructure asObj,
                                          java.lang.String spec)
                                               throws AoException

Get the application elements belongs to the given string specification.

Parameters:

asObj - the application structure.

spec - The string specification.

Returns:

the found application elements or null.

Throws:

AoException

getSelectStatement

public java.lang.String getSelectStatement(AoSession session,
                                  QueryStructure query)
                                    throws AoException

Get the select statement for the given query structure.

Parameters:

session - The session to be used for the select statement.

query - The query structure.

Returns:

the select statement belongs to the given structure.

Throws:

AoException

See Also:

AoSession

getConditionString

public java.lang.String getConditionString(ApplicationStructure asObj,
                                  SelValue selValue)

Get the string presentation of the given condition.

Returns:

the string

getResultColumns

public static ResultColumn[] getResultColumns(ElemResultSet[] elemRes)

Get the result columns.

Parameters:

elemRes - The result set of the query

Returns:

the result columns.

See Also:

ElemResultSet

parseParams

public boolean parseParams(java.lang.String params)

Set the parameter string to the command.

Specified by:

parseParams in interface CommandInterface

Overrides:

parseParams in class Cmd

Parameters:

params - the param string to be parsed.

Returns:

true if successful.

getResultSet

public OdsxResultSetInterface getResultSet()

Get result set.

Returns:

the result set of the select statement.

execute

public boolean execute()

Execute the select command.

Specified by:

execute in interface CommandInterface

Overrides:

execute in class Cmd

Returns:

true if successful.

getElemIds

protected ElemId[] getElemIds(AoSession session,
                  FwkPropertyGroup map)
                       throws AoException

Get ids.

Throws:

AoException