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## com.bea.p13n.expression.operator.string
Class StringContains

    java.lang.Object
      com.bea.p13n.expression.internal.ComplexExpressionImpl
          com.bea.p13n.expression.operator.Operator
              com.bea.p13n.expression.operator.string.StringOperator
                  com.bea.p13n.expression.operator.string.StringContains

All Implemented Interfaces:
  BinaryOperator, Cloneable, Expression, ExpressionEvents, Serializable

public final class StringContains
extends StringOperator
implements BinaryOperator

Implementation of the StringContains operator.
Input 1: A String (or Expression returning a String) that is LHS of the operator.
Input 2: A String (or Expression returning a String) that is RHS of the operator.
Returns: A Boolean: Boolean.TRUE if the RHS is a substring of the LHS.

See Also:
  Serialized Form

Field Summary

Fields inherited from class com.bea.p13n.expression.operator.string.StringOperator
`BINARY_PARAMETER_SIGNATURE, UNARY_PARAMETER_SIGNATURE`

Fields inherited from interface com.bea.p13n.expression.operator.BinaryOperator
`LHS_INDEX, RHS_INDEX`

Fields inherited from interface com.bea.p13n.expression.ExpressionEvents
`EVENT_ADD_SUBEXPRESSION, EVENT_CLEAR_CACHE, EVENT_INTERNAL_MAX, EVENT_REMOVE_SUBEXPRESSION, EVENT_SET_CACHE_ENABLED, EVENT_SET_CACHED_VALUE, EVENT_SET_PARENT, EVENT_SET_SOURCE, EVENT_SET_SUBEXPRESSION, EVENT_SET_USER_DATA`

Constructor Summary
`StringContains()`
`StringContains(Object lhs, Object rhs)`

Method Summary
`Object` | `getLeftHandSide()` Returns left hand side operand of this binary operator.
`Class[]` | `getParameterSignature()` Returns the parameter signature for this `Expression`.
`Object` | `getRightHandSide()` Returns right hand side operand of this binary operator.

Methods inherited from class com.bea.p13n.expression.operator.Operator
`leftHandSide, operand, rightHandSide`

Methods inherited from class com.bea.p13n.expression.internal.ComplexExpressionImpl
`addListener, addSubExpression, clearCache, clone, createProxyExpression, equals, getCachedValue, getParent, getSource, getSubExpression, getSubExpressionCount, getUserData, hashCode, isCached, isCacheEnabled, isEqualitySubExpression, notifyListeners, removeAllSubExpressions, removeListener, removeSubExpression, removeSubExpression, setCachedValue, setCacheEnabled, setParent, setSource, setSubExpression, setUserData, toString, write`

Methods inherited from class java.lang.Object
`finalize, getClass, notify, notifyAll, wait, wait, wait`

Constructor Detail

### StringContains

    public StringContains()

### StringContains

    public StringContains(Object lhs,
                          Object rhs)

Method Detail

### getLeftHandSide

    public Object getLeftHandSide()

  Description copied from interface: `BinaryOperator`
  Returns left hand side operand of this binary operator.

  Specified by:
    `getLeftHandSide` in interface `BinaryOperator`
  Returns:
    The left hand side operand.

### getRightHandSide

    public Object getRightHandSide()

  Description copied from interface: `BinaryOperator`
  Returns right hand side operand of this binary operator.

  Specified by:
    `getRightHandSide` in interface `BinaryOperator`
  Returns:
    The left hand side operand.

### getParameterSignature

    public Class[] getParameterSignature()

  Description copied from interface: `Expression`
  Returns the parameter signature for this `Expression`. Because the sub-expressions within the `Expression` are typically arguments or operands, some type validation is performed by examining the class types of the sub-expressions against the `Expression`'s parameter signature.
  The tests that are performed are:
  1. The number of sub-expressions must equals the number of parameter entries.
  2. The class type of any sub-expression (or the result of evaluating the sub-expresssion) must equal the class type of the corresponding parameter entry.
  3. Any null parameter entries are ignored and are considered optional sub-expressions.

  Specified by:
    `getParameterSignature` in interface `Expression`
  Returns:
    the Class array containing the parameter signature.

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Copyright © 2004 BEA Systems, Inc. All Rights Reserved