org.apache.cayenne.dba.db2

Class DB2QualifierTranslator

java.lang.Object

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

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

org.apache.cayenne.access.translator.select.TrimmingQualifierTranslator

org.apache.cayenne.dba.db2.DB2QualifierTranslator

All Implemented Interfaces:

TraversalHandler

public class DB2QualifierTranslator
extends TrimmingQualifierTranslator

Field Summary

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

trimFunction

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 and Description
DB2QualifierTranslator(QueryAssembler queryAssembler, String trimFunction)

Method Summary

Modifier and Type	Method and Description
protected void	appendFunction(ASTFunctionCall functionExpression) Append function name to result SQL Override this method to rename or skip function if generic name isn't supported on target DB.
protected void	appendFunctionArgDivider(ASTFunctionCall functionExpression) Append divider between function arguments.
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.
protected void	clearLastFunctionArgDivider(ASTFunctionCall functionExpression) Clear last divider as we currently don't now position of argument until parent element is ended.
protected void	processColumnWithQuoteSqlIdentifiers(DbAttribute dbAttr, Expression pathExp) Adds special handling of CHAR columns.

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

getTrimFunction, processColumn, setTrimFunction

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

appendFunctionArg, appendLiteral, appendObjectMatch, detectObjectMatch, doAppendPart, doAppendPart, endNode, extractQualifier, finishedChild, objectNode, operandForBitwiseAnd, operandForBitwiseLeftShift, operandForBitwiseNot, operandForBitwiseOr, operandForBitwiseRightShift, operandForBitwiseXor, parenthesisNeeded, processRelTermination, setCaseInsensitive, setQualifier, setUseAliasForExpressions, startNode

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

appendDbPath, appendLikeEscapeCharacter, appendObjPath, appendPart, getDbEntity, getObjEntity, paramsDbType, processRelTermination

Methods inherited from class java.lang.Object

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

Constructor Detail

DB2QualifierTranslator

public DB2QualifierTranslator(QueryAssembler queryAssembler,
                              String trimFunction)

Method Detail

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

processColumnWithQuoteSqlIdentifiers

protected void processColumnWithQuoteSqlIdentifiers(DbAttribute dbAttr,
                                                    Expression pathExp)

Description copied from class: TrimmingQualifierTranslator

Adds special handling of CHAR columns.

Overrides:

processColumnWithQuoteSqlIdentifiers in class TrimmingQualifierTranslator

appendFunction

protected void appendFunction(ASTFunctionCall functionExpression)

Description copied from class: QualifierTranslator

Append function name to result SQL Override this method to rename or skip function if generic name isn't supported on target DB.

Overrides:

appendFunction in class QualifierTranslator

Since:

4.0

appendFunctionArgDivider

protected void appendFunctionArgDivider(ASTFunctionCall functionExpression)

Description copied from class: QualifierTranslator

Append divider between function arguments. In overriding methods can be replaced e.g. for " || " for CONCAT operation

Overrides:

appendFunctionArgDivider in class QualifierTranslator

Since:

4.0

clearLastFunctionArgDivider

protected void clearLastFunctionArgDivider(ASTFunctionCall functionExpression)

Description copied from class: QualifierTranslator

Clear last divider as we currently don't now position of argument until parent element is ended.

Overrides:

clearLastFunctionArgDivider in class QualifierTranslator

Since:

4.0