Package org.datanucleus.store.cassandra.query

Class QueryToCQLMapper

java.lang.Object

org.datanucleus.store.query.expression.AbstractExpressionEvaluator

org.datanucleus.store.cassandra.query.QueryToCQLMapper

All Implemented Interfaces:

org.datanucleus.store.query.expression.ExpressionEvaluator

public class QueryToCQLMapper
extends org.datanucleus.store.query.expression.AbstractExpressionEvaluator

Mapper for converting a generic query into CQL.

Constructor Summary

Constructors

Constructor	Description
QueryToCQLMapper(org.datanucleus.store.query.compiler.QueryCompilation compilation, Map parameters, org.datanucleus.metadata.AbstractClassMetaData cmd, org.datanucleus.ExecutionContext ec, org.datanucleus.store.query.Query q, org.datanucleus.store.schema.table.Table table)

Method Summary

Modifier and Type	Method	Description
void	compile()
protected String	compileFilter()	Method to compile the FILTER clause of the query
protected void	compileGrouping()	Method to compile the GROUPING clause of the query
protected void	compileHaving()	Method to compile the HAVING clause of the query
protected String	compileOrdering()	Method to compile the ORDERING clause of the query
protected String	compileResult()	Method to compile the RESULT clause of the query
protected String	compileUpdate()	Method to compile the UPDATE clause of the query.
String	getCQL()
protected CassandraExpression	getExpressionForPrimary(org.datanucleus.store.query.expression.PrimaryExpression primExpr)
boolean	isFilterComplete()
boolean	isOrderComplete()
boolean	isPrecompilable()
boolean	isResultComplete()
boolean	isUpdateComplete()
protected Object	processAndExpression(org.datanucleus.store.query.expression.Expression expr)
protected Object	processEqExpression(org.datanucleus.store.query.expression.Expression expr)
protected Object	processGteqExpression(org.datanucleus.store.query.expression.Expression expr)
protected Object	processGtExpression(org.datanucleus.store.query.expression.Expression expr)
protected Object	processInExpression(org.datanucleus.store.query.expression.Expression expr)
protected Object	processInvokeExpression(org.datanucleus.store.query.expression.InvokeExpression expr)
protected Object	processLiteral(org.datanucleus.store.query.expression.Literal expr)
protected Object	processLteqExpression(org.datanucleus.store.query.expression.Expression expr)
protected Object	processLtExpression(org.datanucleus.store.query.expression.Expression expr)
protected Object	processNoteqExpression(org.datanucleus.store.query.expression.Expression expr)
protected Object	processNotInExpression(org.datanucleus.store.query.expression.Expression expr)
protected Object	processOrExpression(org.datanucleus.store.query.expression.Expression expr)
protected Object	processParameterExpression(org.datanucleus.store.query.expression.ParameterExpression expr)
protected Object	processPrimaryExpression(org.datanucleus.store.query.expression.PrimaryExpression expr)

Methods inherited from class org.datanucleus.store.query.expression.AbstractExpressionEvaluator

compileAdditiveMultiplicativeExpression, compileOrAndExpression, compilePrimaryExpression, compileRelationalExpression, compileUnaryExpression, evaluate, processAddExpression, processBitAndExpression, processBitOrExpression, processBitXorExpression, processCaseExpression, processCastExpression, processComExpression, processCreatorExpression, processDistinctExpression, processDivExpression, processIsExpression, processIsnotExpression, processLikeExpression, processModExpression, processMulExpression, processNegExpression, processNotExpression, processSubExpression, processSubqueryExpression, processVariableExpression

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryToCQLMapper

public QueryToCQLMapper(org.datanucleus.store.query.compiler.QueryCompilation compilation,
                        Map parameters,
                        org.datanucleus.metadata.AbstractClassMetaData cmd,
                        org.datanucleus.ExecutionContext ec,
                        org.datanucleus.store.query.Query q,
                        org.datanucleus.store.schema.table.Table table)

Method Detail

getCQL

public String getCQL()

isFilterComplete

public boolean isFilterComplete()

isResultComplete

public boolean isResultComplete()

isOrderComplete

public boolean isOrderComplete()

isUpdateComplete

public boolean isUpdateComplete()

isPrecompilable

public boolean isPrecompilable()

compile

public void compile()

compileFilter

protected String compileFilter()

Method to compile the FILTER clause of the query

Returns:

The CQL for the filter

compileResult

protected String compileResult()

Method to compile the RESULT clause of the query

Returns:

The CQL for the result

compileUpdate

protected String compileUpdate()

Method to compile the UPDATE clause of the query.

Returns:

The CQL for the update

compileGrouping

protected void compileGrouping()

Method to compile the GROUPING clause of the query

compileHaving

protected void compileHaving()

Method to compile the HAVING clause of the query

compileOrdering

protected String compileOrdering()

Method to compile the ORDERING clause of the query

Returns:

The CQL for the result

processAndExpression

protected Object processAndExpression(org.datanucleus.store.query.expression.Expression expr)

Overrides:

processAndExpression in class org.datanucleus.store.query.expression.AbstractExpressionEvaluator

processOrExpression

protected Object processOrExpression(org.datanucleus.store.query.expression.Expression expr)

Overrides:

processOrExpression in class org.datanucleus.store.query.expression.AbstractExpressionEvaluator

processEqExpression

protected Object processEqExpression(org.datanucleus.store.query.expression.Expression expr)

Overrides:

processEqExpression in class org.datanucleus.store.query.expression.AbstractExpressionEvaluator

processNoteqExpression

protected Object processNoteqExpression(org.datanucleus.store.query.expression.Expression expr)

Overrides:

processNoteqExpression in class org.datanucleus.store.query.expression.AbstractExpressionEvaluator

processGtExpression

protected Object processGtExpression(org.datanucleus.store.query.expression.Expression expr)

Overrides:

processGtExpression in class org.datanucleus.store.query.expression.AbstractExpressionEvaluator

processGteqExpression

protected Object processGteqExpression(org.datanucleus.store.query.expression.Expression expr)

Overrides:

processGteqExpression in class org.datanucleus.store.query.expression.AbstractExpressionEvaluator

processLtExpression

protected Object processLtExpression(org.datanucleus.store.query.expression.Expression expr)

Overrides:

processLtExpression in class org.datanucleus.store.query.expression.AbstractExpressionEvaluator

processLteqExpression

protected Object processLteqExpression(org.datanucleus.store.query.expression.Expression expr)

Overrides:

processLteqExpression in class org.datanucleus.store.query.expression.AbstractExpressionEvaluator

processInExpression

protected Object processInExpression(org.datanucleus.store.query.expression.Expression expr)

Overrides:

processInExpression in class org.datanucleus.store.query.expression.AbstractExpressionEvaluator

processNotInExpression

protected Object processNotInExpression(org.datanucleus.store.query.expression.Expression expr)

Overrides:

processNotInExpression in class org.datanucleus.store.query.expression.AbstractExpressionEvaluator

processInvokeExpression

protected Object processInvokeExpression(org.datanucleus.store.query.expression.InvokeExpression expr)

Overrides:

processInvokeExpression in class org.datanucleus.store.query.expression.AbstractExpressionEvaluator

processPrimaryExpression

protected Object processPrimaryExpression(org.datanucleus.store.query.expression.PrimaryExpression expr)

Overrides:

processPrimaryExpression in class org.datanucleus.store.query.expression.AbstractExpressionEvaluator

getExpressionForPrimary

protected CassandraExpression getExpressionForPrimary(org.datanucleus.store.query.expression.PrimaryExpression primExpr)

processParameterExpression

protected Object processParameterExpression(org.datanucleus.store.query.expression.ParameterExpression expr)

Overrides:

processParameterExpression in class org.datanucleus.store.query.expression.AbstractExpressionEvaluator

processLiteral

protected Object processLiteral(org.datanucleus.store.query.expression.Literal expr)

Overrides:

processLiteral in class org.datanucleus.store.query.expression.AbstractExpressionEvaluator