de.ipcon.db.oql.predicate

Class ExpressionEvalBase<T extends ParseTreeNode>

java.lang.Object

de.ipcon.db.oql.predicate.ExpressionEvalBase<T>

All Implemented Interfaces:

OQLExpressionEvaluatorI<T>

Direct Known Subclasses:

BinaryExpressionEvaluator, FunctionEvaluator, ListEvaluator, LiteralEvaluator, ParameterEvaluator, PathNodeEvaluator, UnaryEvaluator

public abstract class ExpressionEvalBase<T extends ParseTreeNode>
extends java.lang.Object
implements OQLExpressionEvaluatorI<T>

Field Summary

Fields inherited from interface de.ipcon.db.oql.predicate.OQLExpressionEvaluatorI

INNER_JOIN_FILTERED_OUT

Constructor Summary

Constructors

Constructor and Description
ExpressionEvalBase(OQLExpressionEvaluatorI<?> parent, T node)

Method Summary

Modifier and Type	Method and Description
java.lang.String	getAlias()
java.util.List<? extends OQLExpressionEvaluatorI<?>>	getChildren() Nonnull list of available children
EntityI	getEntity() The entity of the current context
T	getNode() The parsed OQL Node that belongs to this expression evaluator
java.lang.Object[]	getParameters() Fixed parameter provided to the OQL Query
OQLExpressionEvaluatorI<?>	getParent() The parent evaluator
SchemaI	getSchema() The schema to use for evaluation.
static ExpressionEvalBase<?>	of(OQLExpressionEvaluatorI<?> parent, ParseTreeNode node)

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.ipcon.db.oql.predicate.OQLExpressionEvaluatorI

getValue

Constructor Detail

ExpressionEvalBase

public ExpressionEvalBase(OQLExpressionEvaluatorI<?> parent,
                          T node)

Method Detail

of

public static ExpressionEvalBase<?> of(OQLExpressionEvaluatorI<?> parent,
                                       ParseTreeNode node)
                                throws OQLException

Throws:

OQLException

getNode

public T getNode()

Description copied from interface: OQLExpressionEvaluatorI

The parsed OQL Node that belongs to this expression evaluator

Specified by:

getNode in interface OQLExpressionEvaluatorI<T extends ParseTreeNode>

getParent

public OQLExpressionEvaluatorI<?> getParent()

Description copied from interface: OQLExpressionEvaluatorI

The parent evaluator

Specified by:

getParent in interface OQLExpressionEvaluatorI<T extends ParseTreeNode>

getChildren

public java.util.List<? extends OQLExpressionEvaluatorI<?>> getChildren()

Description copied from interface: OQLExpressionEvaluatorI

Nonnull list of available children

Specified by:

getChildren in interface OQLExpressionEvaluatorI<T extends ParseTreeNode>

getSchema

public SchemaI getSchema()

Description copied from interface: OQLExpressionEvaluatorI

The schema to use for evaluation. In Unittests, the provided BOI might not have a schema assigned

Specified by:

getSchema in interface OQLExpressionEvaluatorI<T extends ParseTreeNode>

getEntity

public EntityI getEntity()

Description copied from interface: OQLExpressionEvaluatorI

The entity of the current context

Specified by:

getEntity in interface OQLExpressionEvaluatorI<T extends ParseTreeNode>

getParameters

public java.lang.Object[] getParameters()

Description copied from interface: OQLExpressionEvaluatorI

Fixed parameter provided to the OQL Query

Specified by:

getParameters in interface OQLExpressionEvaluatorI<T extends ParseTreeNode>

getAlias

public java.lang.String getAlias()

Specified by:

getAlias in interface OQLExpressionEvaluatorI<T extends ParseTreeNode>

Returns:

the current Alias in the OQL Query