com.amazonaws.services.simpledb.model.UpdateCondition Maven / Gradle / Ivy
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/*
* Copyright 2010-2016 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);
}
}
}