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The AWS SDK for Java with support for OSGi. The AWS SDK for Java provides Java APIs for building software on AWS' cost-effective, scalable, and reliable infrastructure products. The AWS Java SDK allows developers to code against APIs for all of Amazon's infrastructure web services (Amazon S3, Amazon EC2, Amazon SQS, Amazon Relational Database Service, Amazon AutoScaling, etc).

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/*
 * Copyright 2011-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"). You may not
 * use this file except in compliance with the License. A copy of the License is
 * located at
 * 
 * http://aws.amazon.com/apache2.0
 * 
 * or in the "license" file accompanying this file. This file is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
package com.amazonaws.services.simpledb.model;

import java.io.Serializable;

/**
 * 

* Specifies the conditions under which data should be updated. If an update * condition is specified for a request, the data will only be updated if the * condition is satisfied. For example, if an attribute with a specific name and * value exists, or if a specific attribute doesn't exist. *

*/ public class UpdateCondition implements Serializable, Cloneable { /** *

* The name of the attribute involved in the condition. *

*/ private String name; /** *

* The value of an attribute. This value can only be specified when the * Exists parameter is equal to true. *

*/ private String value; /** *

* A value specifying whether or not the specified attribute must exist with * the specified value in order for the update condition to be satisfied. * Specify true if the attribute must exist for the update * condition to be satisfied. Specify false if the attribute * should not exist in order for the update condition to be satisfied. *

*/ private Boolean exists; /** * Default constructor for UpdateCondition object. Callers should use the * setter or fluent setter (with...) methods to initialize the object after * creating it. */ public UpdateCondition() { } /** * Constructs a new UpdateCondition object. Callers should use the setter or * fluent setter (with...) methods to initialize any additional object * members. * * @param name * The name of the attribute involved in the condition. * @param value * The value of an attribute. This value can only be specified when * the Exists parameter is equal to true. * @param exists * A value specifying whether or not the specified attribute must * exist with the specified value in order for the update condition * to be satisfied. Specify true if the attribute must * exist for the update condition to be satisfied. Specify * false if the attribute should not exist in order for * the update condition to be satisfied. */ public UpdateCondition(String name, String value, Boolean exists) { setName(name); setValue(value); setExists(exists); } /** *

* The name of the attribute involved in the condition. *

* * @param name * The name of the attribute involved in the condition. */ public void setName(String name) { this.name = name; } /** *

* The name of the attribute involved in the condition. *

* * @return The name of the attribute involved in the condition. */ public String getName() { return this.name; } /** *

* The name of the attribute involved in the condition. *

* * @param name * The name of the attribute involved in the condition. * @return Returns a reference to this object so that method calls can be * chained together. */ public UpdateCondition withName(String name) { setName(name); return this; } /** *

* The value of an attribute. This value can only be specified when the * Exists parameter is equal to true. *

* * @param value * The value of an attribute. This value can only be specified when * the Exists parameter is equal to true. */ public void setValue(String value) { this.value = value; } /** *

* The value of an attribute. This value can only be specified when the * Exists parameter is equal to true. *

* * @return The value of an attribute. This value can only be specified when * the Exists parameter is equal to true. */ public String getValue() { return this.value; } /** *

* The value of an attribute. This value can only be specified when the * Exists parameter is equal to true. *

* * @param value * The value of an attribute. This value can only be specified when * the Exists parameter is equal to true. * @return Returns a reference to this object so that method calls can be * chained together. */ public UpdateCondition withValue(String value) { setValue(value); return this; } /** *

* A value specifying whether or not the specified attribute must exist with * the specified value in order for the update condition to be satisfied. * Specify true if the attribute must exist for the update * condition to be satisfied. Specify false if the attribute * should not exist in order for the update condition to be satisfied. *

* * @param exists * A value specifying whether or not the specified attribute must * exist with the specified value in order for the update condition * to be satisfied. Specify true if the attribute must * exist for the update condition to be satisfied. Specify * false if the attribute should not exist in order for * the update condition to be satisfied. */ public void setExists(Boolean exists) { this.exists = exists; } /** *

* A value specifying whether or not the specified attribute must exist with * the specified value in order for the update condition to be satisfied. * Specify true if the attribute must exist for the update * condition to be satisfied. Specify false if the attribute * should not exist in order for the update condition to be satisfied. *

* * @return A value specifying whether or not the specified attribute must * exist with the specified value in order for the update condition * to be satisfied. Specify true if the attribute must * exist for the update condition to be satisfied. Specify * false if the attribute should not exist in order for * the update condition to be satisfied. */ public Boolean getExists() { return this.exists; } /** *

* A value specifying whether or not the specified attribute must exist with * the specified value in order for the update condition to be satisfied. * Specify true if the attribute must exist for the update * condition to be satisfied. Specify false if the attribute * should not exist in order for the update condition to be satisfied. *

* * @param exists * A value specifying whether or not the specified attribute must * exist with the specified value in order for the update condition * to be satisfied. Specify true if the attribute must * exist for the update condition to be satisfied. Specify * false if the attribute should not exist in order for * the update condition to be satisfied. * @return Returns a reference to this object so that method calls can be * chained together. */ public UpdateCondition withExists(Boolean exists) { setExists(exists); return this; } /** *

* A value specifying whether or not the specified attribute must exist with * the specified value in order for the update condition to be satisfied. * Specify true if the attribute must exist for the update * condition to be satisfied. Specify false if the attribute * should not exist in order for the update condition to be satisfied. *

* * @return A value specifying whether or not the specified attribute must * exist with the specified value in order for the update condition * to be satisfied. Specify true if the attribute must * exist for the update condition to be satisfied. Specify * false if the attribute should not exist in order for * the update condition to be satisfied. */ public Boolean isExists() { return this.exists; } /** * Returns a string representation of this object; useful for testing and * debugging. * * @return A string representation of this object. * * @see java.lang.Object#toString() */ @Override public String toString() { StringBuilder sb = new StringBuilder(); sb.append("{"); if (getName() != null) sb.append("Name: " + getName() + ","); if (getValue() != null) sb.append("Value: " + getValue() + ","); if (getExists() != null) sb.append("Exists: " + getExists()); sb.append("}"); return sb.toString(); } @Override public boolean equals(Object obj) { if (this == obj) return true; if (obj == null) return false; if (obj instanceof UpdateCondition == false) return false; UpdateCondition other = (UpdateCondition) obj; if (other.getName() == null ^ this.getName() == null) return false; if (other.getName() != null && other.getName().equals(this.getName()) == false) return false; if (other.getValue() == null ^ this.getValue() == null) return false; if (other.getValue() != null && other.getValue().equals(this.getValue()) == false) return false; if (other.getExists() == null ^ this.getExists() == null) return false; if (other.getExists() != null && other.getExists().equals(this.getExists()) == false) return false; return true; } @Override public int hashCode() { final int prime = 31; int hashCode = 1; hashCode = prime * hashCode + ((getName() == null) ? 0 : getName().hashCode()); hashCode = prime * hashCode + ((getValue() == null) ? 0 : getValue().hashCode()); hashCode = prime * hashCode + ((getExists() == null) ? 0 : getExists().hashCode()); return hashCode; } @Override public UpdateCondition clone() { try { return (UpdateCondition) super.clone(); } catch (CloneNotSupportedException e) { throw new IllegalStateException( "Got a CloneNotSupportedException from Object.clone() " + "even though we're Cloneable!", e); } } }




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