Package io.ebeaninternal.server.expression

Class SimpleExpression

java.lang.Object

io.ebeaninternal.server.expression.AbstractExpression

io.ebeaninternal.server.expression.AbstractValueExpression

io.ebeaninternal.server.expression.SimpleExpression

All Implemented Interfaces:

Expression, SpiExpression

public class SimpleExpression
extends AbstractValueExpression

Field Summary

Fields inherited from interface io.ebeaninternal.api.SpiExpression

SQL_FALSE, SQL_TRUE

Constructor Summary

Constructors

Constructor	Description
SimpleExpression(String propertyName, Op type, Object value)

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.
String	getPropName()
Object	getValue()
boolean	isOpEquals()
boolean	isSameByBind(SpiExpression other)	Return true if the expression is the same with respect to bind values.
boolean	naturalKey(NaturalKeyQueryData<?> data)	Check for match to a natural key query returning false if it doesn't match.
int	queryBindHash()	Return the hash value for the values that will be bound.
void	queryPlanHash(StringBuilder builder)	Based on the type and propertyName.
void	writeDocQuery(DocQueryContext context)	Write the expression as an elastic search expression.

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

containsMany, copyForPlanKey, nestedPath, prepareExpression, simplify, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleExpression

public SimpleExpression(String propertyName,
                        Op type,
                        Object value)

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

naturalKey

public boolean naturalKey(NaturalKeyQueryData<?> data)

Description copied from interface: SpiExpression

Check for match to a natural key query returning false if it doesn't match.

Specified by:

naturalKey in interface SpiExpression

Overrides:

naturalKey in class AbstractExpression

writeDocQuery

public void writeDocQuery(DocQueryContext context)
                   throws IOException

Description copied from interface: SpiExpression

Write the expression as an elastic search expression.

Throws:

IOException

getPropName

public final String getPropName()

isOpEquals

public boolean isOpEquals()

getValue

public Object getValue()

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.

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.

queryPlanHash

public void queryPlanHash(StringBuilder builder)

Based on the type and propertyName.

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.