Package io.ebeaninternal.server.expression

Class AbstractTextExpression

java.lang.Object

io.ebeaninternal.server.expression.AbstractExpression

io.ebeaninternal.server.expression.AbstractTextExpression

All Implemented Interfaces:

Expression, SpiExpression

Direct Known Subclasses:

TextMatchExpression, TextMultiMatchExpression

public abstract class AbstractTextExpression
extends AbstractExpression

Base class for TextExpressions that are only executable by doc store.

This means they can not be part of a SQL query nor do they use the built in query plan cache etc.

Field Summary

Fields inherited from interface io.ebeaninternal.api.SpiExpression

SQL_FALSE, SQL_TRUE

Method Summary

Modifier and Type	Method	Description
void	addBindValues(SpiExpressionRequest request)	Add the parameter values to be set against query.
void	addSql(SpiExpressionRequest request)	Add some sql to the query.
Object	getIdEqualTo(String idName)	Return the bind Id value if this is a "equal to" expression for the id property.
boolean	isSameByBind(SpiExpression other)	Return true if the expression is the same with respect to bind values.
int	queryBindHash()	Return the hash value for the values that will be bound.
void	queryPlanHash(StringBuilder builder)	Calculate a hash value used to identify a query for AutoTune tuning.

Methods inherited from class io.ebeaninternal.server.expression.AbstractExpression

containsMany, copyForPlanKey, naturalKey, nestedPath, prepareExpression, simplify, validate

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.ebeaninternal.api.SpiExpression

writeDocQuery

Method Detail

getIdEqualTo

public Object getIdEqualTo(String idName)

Description copied from interface: SpiExpression

Return the bind Id value if this is a "equal to" expression for the id property.

Specified by:

getIdEqualTo in interface SpiExpression

Overrides:

getIdEqualTo in class AbstractExpression

addSql

public void addSql(SpiExpressionRequest request)

Description copied from interface: SpiExpression

Add some sql to the query.

This will contain ? as a place holder for each associated bind values.

The 'sql' added to the query can contain object property names rather than db tables and columns. This 'sql' is later parsed converting the logical property names to their full database column names.

Parameters:

request - the associated request.

addBindValues

public void addBindValues(SpiExpressionRequest request)

Description copied from interface: SpiExpression

Add the parameter values to be set against query. For each ? place holder there should be a corresponding value that is added to the bindList.

Parameters:

request - the associated request.

queryPlanHash

public void queryPlanHash(StringBuilder builder)

Description copied from interface: SpiExpression

Calculate a hash value used to identify a query for AutoTune tuning.

That is, if the hash changes then the query will be considered different from an AutoTune perspective and get different tuning.

queryBindHash

public int queryBindHash()

Description copied from interface: SpiExpression

Return the hash value for the values that will be bound.

isSameByBind

public boolean isSameByBind(SpiExpression other)

Description copied from interface: SpiExpression

Return true if the expression is the same with respect to bind values.