Package org.apache.cayenne.dba.openbase

Class OpenBaseQualifierTranslator

java.lang.Object

org.apache.cayenne.access.translator.select.QueryAssemblerHelper

org.apache.cayenne.access.translator.select.QualifierTranslator

org.apache.cayenne.dba.openbase.OpenBaseQualifierTranslator

All Implemented Interfaces:

TraversalHandler

public class OpenBaseQualifierTranslator
extends QualifierTranslator

Translates query qualifier to SQL. Used as a helper class by query translators.

Since:

1.1

Field Summary

Fields inherited from class org.apache.cayenne.access.translator.select.QualifierTranslator

caseInsensitive, matchingObject, objectMatchTranslator, qualifier, useAliasForExpressions, waitingForEndNode

Fields inherited from class org.apache.cayenne.access.translator.select.QueryAssemblerHelper

out, queryAssembler, strategy

Constructor Summary

Constructors

Constructor	Description
OpenBaseQualifierTranslator(QueryAssembler queryAssembler)

Method Summary

Modifier and Type	Method	Description
protected void	appendExtractFunction(ASTExtract functionExpression)	Special case for extract date/time parts functions as they have many variants
protected void	appendLiteralDirect(Object val, DbAttribute attr, Expression parentExpression)	Appends SQL code to the query buffer to handle val as a parameter to the PreparedStatement being built.
void	endNode(Expression node, Expression parentNode)	Called during the traversal after an expression node children processing is finished.
void	finishedChild(Expression node, int childIndex, boolean hasMoreChildren)	Called during traversal after a child of expression has been visited.
void	startNode(Expression node, Expression parentNode)	Called during the traversal before an expression node children processing is started.

Methods inherited from class org.apache.cayenne.access.translator.select.QualifierTranslator

appendFunction, appendFunctionArg, appendFunctionArgDivider, appendLiteral, appendObjectMatch, clearLastFunctionArgDivider, detectObjectMatch, doAppendPart, doAppendPart, extractQualifier, objectNode, operandForBitwiseAnd, operandForBitwiseLeftShift, operandForBitwiseNot, operandForBitwiseOr, operandForBitwiseRightShift, operandForBitwiseXor, parenthesisNeeded, processRelTermination, setCaseInsensitive, setQualifier, setUseAliasForExpressions

Methods inherited from class org.apache.cayenne.access.translator.select.QueryAssemblerHelper

appendDbPath, appendLikeEscapeCharacter, appendObjPath, appendPart, getDbEntity, getObjEntity, paramsDbType, processColumn, processColumnWithQuoteSqlIdentifiers, processRelTermination, setForceJoinForRelations

Methods inherited from class java.lang.Object

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

Constructor Detail

OpenBaseQualifierTranslator

public OpenBaseQualifierTranslator(QueryAssembler queryAssembler)

Method Detail

startNode

public void startNode(Expression node,
                      Expression parentNode)

Description copied from interface: TraversalHandler

Called during the traversal before an expression node children processing is started.

Specified by:

startNode in interface TraversalHandler

Overrides:

startNode in class QualifierTranslator

endNode

public void endNode(Expression node,
                    Expression parentNode)

Description copied from interface: TraversalHandler

Called during the traversal after an expression node children processing is finished.

Specified by:

endNode in interface TraversalHandler

Overrides:

endNode in class QualifierTranslator

appendLiteralDirect

protected void appendLiteralDirect(Object val,
                                   DbAttribute attr,
                                   Expression parentExpression)
                            throws IOException

Description copied from class: QueryAssemblerHelper

Appends SQL code to the query buffer to handle val as a parameter to the PreparedStatement being built. Adds val into QueryAssembler parameter list.

Overrides:

appendLiteralDirect in class QueryAssemblerHelper

Throws:

IOException

finishedChild

public void finishedChild(Expression node,
                          int childIndex,
                          boolean hasMoreChildren)

Description copied from interface: TraversalHandler

Called during traversal after a child of expression has been visited.

Specified by:

finishedChild in interface TraversalHandler

Overrides:

finishedChild in class QualifierTranslator

appendExtractFunction

protected void appendExtractFunction(ASTExtract functionExpression)

Description copied from class: QualifierTranslator

Special case for extract date/time parts functions as they have many variants

Overrides:

appendExtractFunction in class QualifierTranslator