org.apache.openjpa.persistence.query
Class SubStringExpression

java.lang.Object
  org.apache.openjpa.persistence.query.AbstractVisitable
      org.apache.openjpa.persistence.query.ExpressionImpl
          org.apache.openjpa.persistence.query.UnaryOperatorExpression
              org.apache.openjpa.persistence.query.SubStringExpression

All Implemented Interfaces:

Serializable, Aggregate, Expression, OrderByItem, PredicateOperand, SelectItem, Visitable

public class SubStringExpression
extends UnaryOperatorExpression

Denotes SUBSTR(a,i1,i2) Expression.

Author:

Pinaki Poddar

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.openjpa.persistence.query.UnaryOperatorExpression

_e, _op

Fields inherited from class org.apache.openjpa.persistence.query.AbstractVisitable

CLOSE_BRACE, COMMA, EMPTY, OPEN_BRACE, SPACE

Constructor Summary

SubStringExpression(Expression op, Expression start)

SubStringExpression(Expression op, Expression start, Expression l)

SubStringExpression(Expression op, int start)

SubStringExpression(Expression op, int start, int len)

Method Summary

String

asExpression(AliasContext ctx) Get a JPQL fragment as used in WHERE clause.

Methods inherited from class org.apache.openjpa.persistence.query.UnaryOperatorExpression

asProjection, distinct, getOperand, getOperator

Methods inherited from class org.apache.openjpa.persistence.query.ExpressionImpl

abs, asc, between, between, between, between, between, between, between, between, between, between, between, between, between, concat, concat, desc, dividedBy, dividedBy, equal, equal, equal, equal, equal, equal, equal, equal, getAliasHint, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, in, in, in, in, in, in, isNull, length, lessEqual, lessEqual, lessEqual, lessEqual, lessEqual, lessThan, lessThan, lessThan, lessThan, lessThan, like, like, like, like, like, like, locate, locate, locate, locate, locate, locate, lower, member, minus, minus, minus, mod, mod, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, plus, plus, sqrt, substring, substring, substring, substring, substring, substring, times, times, trim, trim, trim, trim, trim, trim, upper

Methods inherited from class org.apache.openjpa.persistence.query.AbstractVisitable

asJoinable

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.openjpa.persistence.query.Expression

abs, concat, concat, dividedBy, dividedBy, in, in, in, in, in, in, isNull, length, locate, locate, locate, locate, locate, locate, lower, member, minus, minus, minus, mod, mod, plus, plus, sqrt, substring, substring, substring, substring, substring, substring, times, times, trim, trim, trim, trim, trim, trim, upper

Methods inherited from interface org.apache.openjpa.persistence.query.SelectItem

asc, desc

Methods inherited from interface org.apache.openjpa.persistence.query.PredicateOperand

between, between, between, between, between, between, between, between, between, between, between, between, between, equal, equal, equal, equal, equal, equal, equal, equal, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, lessEqual, lessEqual, lessEqual, lessEqual, lessEqual, lessThan, lessThan, lessThan, lessThan, lessThan, like, like, like, like, like, like, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual

Methods inherited from interface org.apache.openjpa.persistence.query.Visitable

asJoinable

Constructor Detail

SubStringExpression

public SubStringExpression(Expression op,
                           Expression start)

SubStringExpression

public SubStringExpression(Expression op,
                           int start)

SubStringExpression

public SubStringExpression(Expression op,
                           int start,
                           int len)

SubStringExpression

public SubStringExpression(Expression op,
                           Expression start,
                           Expression l)

Method Detail

asExpression

public String asExpression(AliasContext ctx)

Description copied from interface: Visitable

Get a JPQL fragment as used in WHERE clause.

Specified by:

asExpression in interface Visitable

Overrides:

asExpression in class UnaryOperatorExpression