org.jpox.store.mapped.expression
Class ObjectLiteral

java.lang.Object
  org.jpox.store.mapped.expression.ScalarExpression
      org.jpox.store.mapped.expression.ObjectExpression
          org.jpox.store.mapped.expression.ObjectLiteral

All Implemented Interfaces:

Literal

public class ObjectLiteral
extends ObjectExpression
implements Literal

Representation of an Object literal in a query.

Version:

$Revision: 1.43 $

Nested Class Summary

Nested classes/interfaces inherited from class org.jpox.store.mapped.expression.ScalarExpression

ScalarExpression.DatastoreFieldExpression, ScalarExpression.DyadicOperator, ScalarExpression.ExpressionList, ScalarExpression.IllegalArgumentTypeException, ScalarExpression.IllegalOperationException, ScalarExpression.MethodInvocationException, ScalarExpression.MonadicOperator, ScalarExpression.Operator

Field Summary

Fields inherited from class org.jpox.store.mapped.expression.ObjectExpression

conditionExpr

Fields inherited from class org.jpox.store.mapped.expression.ScalarExpression

aliasIdentifier, checkForTypeAssignability, expressionList, FILTER, LOCALISER, lowestOperator, mapping, OP_ADD, OP_AND, OP_BETWEEN, OP_COM, OP_CONCAT, OP_DIV, OP_EQ, OP_GT, OP_GTEQ, OP_IN, OP_IS, OP_ISNOT, OP_LIKE, OP_LT, OP_LTEQ, OP_MOD, OP_MUL, OP_NEG, OP_NOT, OP_NOTEQ, OP_NOTIN, OP_NOTLIKE, OP_OR, OP_SUB, parameterName, PROJECTION, qs, st, te

Constructor Summary

ObjectLiteral(QueryExpression qs, JavaTypeMapping mapping, java.lang.Object value)
Creates an Object literal

ObjectLiteral(QueryExpression qs, JavaTypeMapping mapping, java.lang.Object value, java.lang.String mappingClass)
Creates an Object literal

Method Summary

ScalarExpression	accessField(java.lang.String subfieldName, boolean innerJoin) Reads a field of an object passed by parameter to the query
BooleanExpression	eq(ScalarExpression expr) Method called when the query contains "object == value".
java.lang.Object	getRawValue() Accessor for the "raw" value that this literal represents.
java.lang.Object	getValue() Accessor to the literal value
BooleanExpression	noteq(ScalarExpression expr) Method called when the query contains "object NOTEQUALS value".
void	setRawValue(java.lang.Object val) Method to save a "raw" value that this literal represents.
java.lang.String	toString()

Methods inherited from class org.jpox.store.mapped.expression.ObjectExpression

addOuterJoinSuffix, cast, in, instanceOf, setFieldDefinition, useIdentityFormOfPCMapping

Methods inherited from class org.jpox.store.mapped.expression.ScalarExpression

add, and, as, assertValidTypeForParameterComparison, callMethod, checkForTypeAssignability, com, div, encloseWithInParentheses, eor, equals, getAlias, getConsistentTypeForParameterComparison, getExpressionList, getLogicSetExpression, getMapping, getNonAliasExpression, getParameterName, getQueryExpression, gt, gteq, ior, isParameter, lt, lteq, mod, mul, neg, not, setParameterName, sub, toStatementText

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectLiteral

public ObjectLiteral(QueryExpression qs,
                     JavaTypeMapping mapping,
                     java.lang.Object value)

Creates an Object literal

Parameters:

qs - the QueryExpression

mapping - the mapping

value - the Object value

ObjectLiteral

public ObjectLiteral(QueryExpression qs,
                     JavaTypeMapping mapping,
                     java.lang.Object value,
                     java.lang.String mappingClass)

Creates an Object literal

Parameters:

qs - the QueryExpression

mapping - the mapping

value - the Object value

mappingClass - the declared mapped class

Method Detail

getValue

public java.lang.Object getValue()

Description copied from interface: Literal

Accessor to the literal value

Specified by:

getValue in interface Literal

Returns:

the value of the literal

eq

public BooleanExpression eq(ScalarExpression expr)

Method called when the query contains "object == value".

Overrides:

eq in class ObjectExpression

Parameters:

expr - The expression

Returns:

The resultant expression for this query relation

noteq

public BooleanExpression noteq(ScalarExpression expr)

Method called when the query contains "object NOTEQUALS value".

Overrides:

noteq in class ObjectExpression

Parameters:

expr - The expression

Returns:

The resultant expression for this query relation

accessField

public ScalarExpression accessField(java.lang.String subfieldName,
                                    boolean innerJoin)

Reads a field of an object passed by parameter to the query

Overrides:

accessField in class ObjectExpression

Parameters:

subfieldName - Name of the subfield

innerJoin - whether to inner join

Returns:

a new ScalarExpression from the field value

toString

public java.lang.String toString()

Overrides:

toString in class ScalarExpression

setRawValue

public void setRawValue(java.lang.Object val)

Method to save a "raw" value that this literal represents. This value differs from the literal value since that is of the same type as this literal.

Specified by:

setRawValue in interface Literal

Parameters:

val - The raw value

getRawValue

public java.lang.Object getRawValue()

Accessor for the "raw" value that this literal represents. This value differs from the literal value since that is of the same type as this literal.

Specified by:

getRawValue in interface Literal

Returns:

The raw value