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Oracle Fusion Middleware Java API for Oracle WebLogic Portal 10g Release 3 (10.3.2) E14255-01 |
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java.lang.Object
com.bea.p13n.expression.ExpressionFactory
public abstract class ExpressionFactory
A factory class to create instances of the various implementation classes in the expression package.
Constructor Summary | |
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ExpressionFactory() |
Method Summary | |
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static Evaluator |
createEvaluator(Map environment) Creates a stateful Evaluator using the supplied environment. |
static Evaluator |
createEvaluator(Map environment, UnificationList unificationList) Creates an Evaluator object using the supplied environment and a UnificationList . |
static Executor |
createExecutor(Map environment) Creates an Executor if it is not cached, otherwise returns the cached Executor . |
static Expression |
createExpression(Map environment, Reader reader) Creates an Expression using the supplied environment, reading and parsing the characters from the supplied reader. |
static Expression |
createExpression(Map environment, String xmlString) Creates an Expression using the supplied environment and parsing the supplied string. |
static Optimizer |
createOptimizer(Map environment, ObjectFilter objectFilter) Creates an Optimizer using the supplied environment and an ObjectFilter . |
static UnificationList |
createUnificationList(Map environment) Creates a UnificationList using the supplied environment. |
static Unifier |
createUnifier(Map environment, UnificationList unificationList) Creates a Unifier using the supplied environment and the UnificationList . |
static Validator |
createValidator(Map environment) Creates a stateful Evaluator object using the supplied environment. |
static Validator |
createValidator(Map environment, Evaluator evaluator) Creates a Validator object using the supplied environment and an Evaluator . |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ExpressionFactory()
Method Detail |
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public static Unifier createUnifier(Map environment, UnificationList unificationList)
Unifier
using the supplied environment and the UnificationList
.environment
- A Map
containing environment information that is used to create a Unifier
.unificationList
- A UnificationList
that is used to bind variables to their values.Unifier
that can unify an expression.Unifier
public static UnificationList createUnificationList(Map environment)
UnificationList
using the supplied environment.environment
- A Map
containing the environment information that is used to create a UnificationList
.UnificationList
.UnificationList
public static Executor createExecutor(Map environment)
Executor
if it is not cached, otherwise returns the cached Executor
.environment
- The environment information to be used during creation of an Executor
.Executor
that can execute an expression.Executor
public static Evaluator createEvaluator(Map environment)
Evaluator
using the supplied environment.environment
- The environment information to be used during creation of an Evaluator
.Evaluator
that can evaluate an expression.Evaluator
public static Evaluator createEvaluator(Map environment, UnificationList unificationList)
Evaluator
object using the supplied environment and a UnificationList
. If the supplied UnificationList
is null then a stateful Evaluator
is returned, otherwise a stateless Evaluator
is created by associating the supplied UnificationList
.environment
- The environment information to be used during creation of an Evaluator
.unificationList
- An UnificationList.Evaluator
that can evaluate an expression.Evaluator
public static Validator createValidator(Map environment)
Evaluator
object using the supplied environment.environment
- The environment information to be used during creation of the Evaluator
.Validator
that can validate an expression.Validator
public static Validator createValidator(Map environment, Evaluator evaluator)
Validator
object using the supplied environment and an Evaluator
. If the supplied Evaluator
is null then a stateful Validator
is returned otherwise a stateless Validator
is created by associating the given Evaluator
.environment
- The environment information to be used during creation of the Validator
.evaluator
- An Evaluator
to evaluate an expression during validation.Validator
that can validate an expression.Validator
public static Optimizer createOptimizer(Map environment, ObjectFilter objectFilter)
Optimizer
using the supplied environment and an ObjectFilter
.environment
- The information that is used to create an Optimizer
.objectFilter
- An ObjectFilter
that is used during optimization.Optimizer
that can optimize an expression.Optimizer
public static Expression createExpression(Map environment, Reader reader) throws ExpressionException
Expression
using the supplied environment, reading and parsing the characters from the supplied reader.environment
- The information that is used to create an Expression
.reader
- The reader from which the characters will be read and parsed into an expression object.Expression
.ExpressionException
- If an error occurs during reading or parsing.Expression
public static Expression createExpression(Map environment, String xmlString) throws ExpressionException
Expression
using the supplied environment and parsing the supplied string.environment
- The information that is used to create an Expression
.xmlString
- The XML string that is read and parsed into an expression object.Expression
.ExpressionException
- If an error occurs during parsing.Expression
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Oracle Fusion Middleware Java API for Oracle WebLogic Portal 10g Release 3 (10.3.2) E14255-01 |
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